Johannes Gutenberg Uni versity 02.430 URL:https://indico.mitp.uni-mainz.de/event/30/ END:VEVENT BEGIN:VEVENT SUMMARY:Higgs Pair Production at Colliders DTSTART;VALUE=DATE-TIME:20150427T060000Z DTEND;VALUE=DATE-TIME:20150430T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-31@cern.ch DESCRIPTION:Multiple Higgs boson production will give access to new Higgs interactions that are totally unconstrained with the current LHC data. The Higgs mass has been accurately measured and the Higgs couplings to matter fields have been determined at the 10-20% level and will be further impro ved during the next run. Higgs pair production (HH) will give access to mu ltiple Higgs interactions\, such as the Higgs triple self-coupling and\, i n addition\, the coupling of two Higgs bosons to two gauge bosons\, to two fermions\, and to new particles.\n \n In the last two years an enor mous progress has been made on several aspects of Higgs pair production at the LHC: the theoretical accuracy on the production cross section has sub stantially improved\, new decay channels have been proposed and preliminar y studies are available which are based on sophisticated techniques such a s jet-substructure and shower deconstruction\, Monte Carlo event generatio n can now be performed at the NLO level and the effects of new physics hav e been studied in several concrete models\, finding that this process can deviate significantly from the SM prediction while having agreement with c urrent Higgs data.\n \n The goal of this workshop is to gather toget her theoreticians (from the QCD\, BSM and Monte Carlo communities) and LHC experimentalists to analyze the status of HH production studies. \n\nhttp s://indico.mitp.uni-mainz.de/event/31/ LOCATION:Mainz Institute for Theoretical Physics

Johannes Gutenberg Uni versity 02.430 URL:https://indico.mitp.uni-mainz.de/event/31/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutron Skins of Nuclei: from laboratory to stars: Introductory Wo rkshop DTSTART;VALUE=DATE-TIME:20150504T060000Z DTEND;VALUE=DATE-TIME:20150507T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-43@cern.ch DESCRIPTION:Scientific program bringing together the stakeholders interest ed in the determination of the neutron skin of a heavy nucleus (e.g.\, Pb) and its implications on the density dependence of the symmetry energy. \n Although various meetings of this sort have already been organized\, it is the primary goal of the program to establish quantitatively the strengths and limitations of the various experimental techniques. This requires a d etailed analysis of the systematic errors. \nMoreover\, in the case that t heory must be used to connect the experimental observable to the neutron s kin\, it also essential to quantify both the statistical and systematic er rors associated with such a theory. \nFinally\, we aim to establish what i s the required precision on the neutron skin that will allow a meaningful constraint on the density dependence of the symmetry energy and ultimately on astrophysical observables. \n\nThe introductory workshop serves to pre -define goals and expectation and a two-weeks scientific program in spring next year.\n\nhttps://indico.mitp.uni-mainz.de/event/43/ LOCATION:Mainz Institute for Theoretical Physics

Johannes Gutenberg Uni versity 02.430 URL:https://indico.mitp.uni-mainz.de/event/43/ END:VEVENT BEGIN:VEVENT SUMMARY:The Ultra-Light Frontier DTSTART;VALUE=DATE-TIME:20150615T060000Z DTEND;VALUE=DATE-TIME:20150619T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-32@cern.ch DESCRIPTION:Ultra-light particles such as axions and dark photons. Such pa rticles emerge generically in many models of ultra-violet physics such as string theory and can easily constitute the dark matter of the universe. S earches for these particles are thus well motivated. Current experimental techniques have a very limited ability to probe the parameter space of suc h particles. In light of our ignorance of the ultraviolet structures that create these particles\, it is essential to develop new probes of their pa rameter space. Recently\, as a result of several joint theory and experime ntal collaborations\, a number of new ideas have been put forth to accompl ish this goal.\n\nThis workshop will bring together experts from a variety of relevant fields\, so that expertise developed in one field may help cr oss-pollinate ideas in other fields.\n\nhttps://indico.mitp.uni-mainz.de/e vent/32/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/32/ END:VEVENT BEGIN:VEVENT SUMMARY:Quantum Vacuum and Gravitation DTSTART;VALUE=DATE-TIME:20150622T060000Z DTEND;VALUE=DATE-TIME:20150626T161000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-33@cern.ch DESCRIPTION:The discovery of the accelerated expansion of the Universe con firmed the existence of dark energy in the universe which is presumably ge nerated by a non-vanishing cosmological constant. Early attempts to link t his fact to the vacuum sector of quantum field theory have failed because of the dramatic difference between the orders magnitude involved. The prob lem is similar to that of inflationary scenarios\, where there is an incre asing evidence that it is connected to quantum fluctuations and modified m odels of gravity. The recent discovery of the Higgs boson provides an extr a support to the idea that scalar fields also play a fundamental role in N ature. There are other phenomena like Hawking radiation and inflationary m echanisms where the applications of quantum field theory to gravitation be come very relevant.\n\nThe aim of the program is to analyze from a modern perspective quantum field-theoretical methods\, like renormalization group and conformal anomalies\, and their applications in astrophysics and cosm ology with special focus on black hole physics and the study of analogue s ystems. \n\nhttps://indico.mitp.uni-mainz.de/event/33/ LOCATION:Mainz Institute for Theoretical Physics

Johannes Gutenberg Uni versity 02.430 URL:https://indico.mitp.uni-mainz.de/event/33/ END:VEVENT BEGIN:VEVENT SUMMARY:New analytic ideas for loop integrands\, QCD meets N=4 super Yang- Mills DTSTART;VALUE=DATE-TIME:20160229T070000Z DTEND;VALUE=DATE-TIME:20160304T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-60@cern.ch DESCRIPTION:The aim of this workshop is to bring together a number of inte rnational experts interested in the application of new ideas for loop inte grands to QCD scattering amplitudes.\n\nTopical keywords:\n- analytic resu lts for loop integrands\n- soft and collinear properties of loop integrand s\n- application of on-shell recursion relations beyond N=4 super Yang-Mil ls\n- leading singularities\, d-log representations\, generalized unitarit y in D dimensions\n\n \n\n\n\nhttps://indico.mitp.uni-mainz.de/event/60/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/60/ END:VEVENT BEGIN:VEVENT SUMMARY:Determination of the Fundamental Parameters in QCD DTSTART;VALUE=DATE-TIME:20160307T070000Z DTEND;VALUE=DATE-TIME:20160312T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-46@cern.ch DESCRIPTION:The goal of the workshop is to clarify ways to determine the f undamental parameters of QCD. These are mainly the strong coupling and the quark masses\, but include also parameters relevant in theoretical approa ches as for example chiral perturbation theory\, QCD sum rules and lattice QCD. A sideline addition will be to discuss the current status of the had ronic contribution to the muon anomaly\, g-2. Relevant experimental inform ation\, e.g. results from electron-positron annihilation into hadrons\, ta u-lepton decays\, and data from high-energy experiments will be discussed. \n\nThe workshop is a follow-up to a previous similar one in Singapore in 2013 (http://www.ntu.edu.sg/ias/upcomingevents/WKSQCD13/Pages/default.aspx ). There will be morning talks\, followed by extensive afternoon discussio n sessions involving all participants. Proceedings will be published in th e Review Section of Mod. Phys. Lett. A\, distributed over several issues.\ n\n\nhttps://indico.mitp.uni-mainz.de/event/46/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/46/ END:VEVENT BEGIN:VEVENT SUMMARY:Relativistic Hydrodynamics: Theory and Modern Applications DTSTART;VALUE=DATE-TIME:20161010T060000Z DTEND;VALUE=DATE-TIME:20161014T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-58@cern.ch DESCRIPTION:Interest in Relativistic Hydrodynamics (RH) has experienced ex plosive growth recently\, motivated by new applications to relativistic he avy-ion collisions as well as by surprising and deep connections to advanc ed topics in theoretical physics such as anomalies and gauge-gravity duali ty.\nA lot of new theoretical work with novel experimental applications ha s been done recently\, beyond one of the traditional applications of RH - relativistic astrophysics. In view of the recent rapid development of RH\, the topical workshop will review and summarize achievements\, address ope n issues\, and map out promising directions for future research. The topic al workshop will bring together physicists working with RH in different co ntexts (from high-energy nuclear physics and astrophysics to mathematical physics)\, giving them time to share expertise and ideas\, establishing a common language and kindling new collaborations.\n\nhttps://indico.mitp.un i-mainz.de/event/58/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/58/ END:VEVENT BEGIN:VEVENT SUMMARY:Quantum methods for lattice gauge theories calculations DTSTART;VALUE=DATE-TIME:20170206T070000Z DTEND;VALUE=DATE-TIME:20170210T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-79@cern.ch DESCRIPTION:This Topical Workshop will bring together the expertise of sci entists on high-energy-physics\, lattice calculations and scientists explo ring the route toward quantum lattice calculations. The bridge between thi s two communities will surely be beneficial to the current research progra m indicating possible critical aspects\, and unveiling new ideas and appro aches based on decades of experience in lattice calculations.\n\nThere are two different dimensions to explore:\n\nThe development of theoretical an d numerical quantum information tools to study Lattice Gauge Theories (LGT s): sophisticated numerical simulations performed on classical computers m ainly based on - but not limited to – matrix product states and tensor n etworks\, which were originally developed in the context of quantum inform ation science and have arisen as promising alternative numerical tools to address challenging questions in strongly correlated condensed matter and in LGTs.\n\nThe development of the theoretical tools to design\, develop a nd verify quantum simulations of LGTs and the implementation of experiment al proof of principle quantum simulations of LGTs. While it is currently u nclear which combination of theoretical approach (Wilson's LGT or quantum link models)\, numerical method (hybrid Monte Carlo\, cluster algorithms)\ , and experimental quantum technology (ultracold atoms\, trapped ions\, or superconducting circuits) is best suited to solve these challenging probl ems\, current research aims at shedding light on these fundamental questio ns.\n\nList of Keynote speakers (confirmed):\n\nJurgen Berges\nRainer Blat t\nKarl Jansen\nMaciej Lewenstein\nMiguel A. Martin-Delgado\nGuido Martine lli\nMarkus Oberthaler\nBenni Reznik\nFerdinand Schmidt-Kaler\nFrank Verst raete\n\nThe workshop attendance is limited to about 30 participants\, and there is space for some contributed talks. Deadline for application is D ecember 1st 2016. \n\nhttps://indico.mitp.uni-mainz.de/event/79/ LOCATION:Waldthausen Castle near Mainz URL:https://indico.mitp.uni-mainz.de/event/79/ END:VEVENT BEGIN:VEVENT SUMMARY:Women at the Intersection of Mathematics and High Energy Physics DTSTART;VALUE=DATE-TIME:20170306T070000Z DTEND;VALUE=DATE-TIME:20170310T180000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-68@cern.ch DESCRIPTION:In this meeting\, we plan to bring together mathematical physi cists who are specialized in mathematical aspects of quantum field theory\ , quantum gravity\, and string theory. The workshop will focus on four int ertwined pillars:\n\n\n Locality and observables\,\n Symmetry and duality\ ,\n String compactifications\,\n Numbers and singularities.\n\n\nBesides p roviding an opportunity to exchange knowledge at the frontier between theo retical high energy physics and mathematics\, this Topical Workshop will b ring together a still underrepresented minority of excellent women\, with the aim to foster equal opportunities by networking and improving their vi sibility within the scientific community.\n\nhttps://indico.mitp.uni-mainz .de/event/68/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/68/ END:VEVENT BEGIN:VEVENT SUMMARY:Geometry\, Gravity and Supersymmetry DTSTART;VALUE=DATE-TIME:20170424T060000Z DTEND;VALUE=DATE-TIME:20170428T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-78@cern.ch DESCRIPTION:The goal of the workshop is to bring together geometers and ma thematical physicists working on problems related to two related areas: th e classification of supergravity backgrounds and the study of moduli space s and special geometric structures\, in order to first gauge the progress that has been made so far in these research areas\, and then to identify d irections in which these areas can develop further.\n\nhttps://indico.mitp .uni-mainz.de/event/78/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/78/ END:VEVENT BEGIN:VEVENT SUMMARY:Foundational and structural aspects of gauge theories DTSTART;VALUE=DATE-TIME:20170525T153000Z DTEND;VALUE=DATE-TIME:20170602T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-76@cern.ch DESCRIPTION:Gauge symmetry represents in modern theoretical physics one of the main pillars in several successful frameworks. The standard model of elementary particles is probably the most famous example and\, especially in the realm of quantum physics\, many models implementing the gauge prin ciple have been formulated and thoroughly studied. Yet\, it is widely acce pted\, that our present understanding of the structural aspects of these t heories as well as their role in a foundational and axiomatic framework fo r quantum field theory is not as developed as our current knowledge of the ir phenomenological consequences. This topical workshop is a timely event which represents an important occasion to review recent achievements and t o start a fruitful discussion on the open issues and on the directions of future research.\n\nhttps://indico.mitp.uni-mainz.de/event/76/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/76/ END:VEVENT BEGIN:VEVENT SUMMARY:

What can we learn? What should we do? DTSTART;VALUE=DATE-TIME:20171009T070000Z DTEND;VALUE=DATE-TIME:20171013T120000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-77@cern.ch DESCRIPTION:\n\nThe experimental landscape for low-energy neutrino astrono my (few to few tens of MeV) is evolving rapidly. Several existing or plann ed large detectors world-wide will produce high-statistics signals of the next Galactic stellar collapse event (supernova or black-hole formation)\, and the diffuse supernova neutrino background (DSNB) is coming into reach with the gadolinium enhancement of Super-Kamiokande and the JUNO scintill ator detector.\n\nThis topical workshop is meant to interface the communit ies of supernova and neutrino theorists and protagonists of the evolving e xperimental side. The goals are to enhance the information flow and mutual understanding between these communities and to develop a better definitio n of the observational targets (What can we learn?) and of the deliverable s that should be provided by neutrino and SN theory as possible benchmarks for detector optimization and observation strategies (What should we do?) . The program continues the discussions of a previous workshop at the IN T in Seattle in August 2016.\n\nThe conference photo can be found here.\n\ nhttps://indico.mitp.uni-mainz.de/event/77/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/77/ END:VEVENT BEGIN:VEVENT SUMMARY:4th LISA Cosmology Working Group Workshop DTSTART;VALUE=DATE-TIME:20171016T073000Z DTEND;VALUE=DATE-TIME:20171020T140000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-110@cern.ch DESCRIPTION:\n \n \n This is the 4th LISA Cosmology Working Group Works hop. After the selection of the LISA mission by ESA following the call for mission in autumn 2016\, and the end of ESA design study in summer 2017\, the configuration of the LISA interferometer is substantially fixed. It i s therefore time to precisely assess the capability of the new LISA config uration to test different aspects of cosmology and fundamental physics. Mo reover\, the community must start to dwell on new issues connected with da ta analysis techniques and with the needs of the LISA Consortium to addres s ESA requests. The goal of the present workshop is to obtain concrete res ults in this respect\, therefore\, it will be dedicated mostly to collabor ative work in teams\, accompanied by a few seminars on new results.\n \n \n \n\n\nThe workshop will cover the following main topics:\n\n\n First order phase transitions\n Detection of stochastic backgrounds\n Topologica l defects\n Standard sirens\n Testing General Relativity\n Inflation and b eyond\n Primordial black holes and dark matter\n Structure formation\n\n\n https://indico.mitp.uni-mainz.de/event/110/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/110/ END:VEVENT BEGIN:VEVENT SUMMARY:The Evaluation of the Leading Hadronic Contribution to the Muon An omalous Magnetic Moment DTSTART;VALUE=DATE-TIME:20180219T062000Z DTEND;VALUE=DATE-TIME:20180223T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-128@cern.ch DESCRIPTION:The workshop is focussed on the hadronic contribution to the a nomalous magnetic moment of the muon\, both analyzing the most recent expe rimental results for its determination in time-like processes and taking i nto consideration the most recent dedicated lattice calculations.\n\nIn th is context\, a particular attention and a series of seminars and discussio ns will be devoted to consider a recently proposed possibility of extracti ng the muon anomalous magnetic moment by using an alternative method\, whi ch exploits experiments where space-like processes are involved\, such a s the μ-e scattering or Bhabha processes.\n\nThe aim is to discuss and to explore in detail the state of the art of precision radiative corrections to μ-e scattering and Bhabha processes in order to master the theoretic al tools necessary to develop dedicated Monte Carlo simulation codes.\n\nF inally\, part of the discussion will be devoted to survey the experimenta l challenges for the extraction of the hadronic contribution to the runnin g of the electromagnetic coupling constant in space-like processes.\n\nThe foreseeable impact is represented by the possibility of testing the consi stency of the Standard Model at the level of quantum corrections with an u nprecedented precision as well as the one of ascertain the presence of New Physics virtual effects in a robust (and unambiguous) way.\n\nhttps://ind ico.mitp.uni-mainz.de/event/128/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/128/ END:VEVENT BEGIN:VEVENT SUMMARY:Applied Newton-Cartan Geometry DTSTART;VALUE=DATE-TIME:20180312T070000Z DTEND;VALUE=DATE-TIME:20180316T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-141@cern.ch DESCRIPTION:The field of Applied Newton-Cartan Geometry is currently a rap idly developing field which is attracting researchers from different direc tions. Recent studies of non-AdS holography involving Lifshitz spacetimes have led to field theories with non-relativistic scaling\, that are couple d to an extension of Newton-Cartan geometry that includes so-called twistl ess torsion. Parallel to this development\, effective field theories in a Newton-Cartan background have been studied in Condensed Matter Physics and used to describe a variety of non-relativistic systems such as the Fracti onal Quantum Hall Effect\, chiral superfluids and simple fluids. Besides t he holographic and effective field theory applications\, there have been m any other recent applications of Newton-Cartan geometry in different field s ranging from hydrodynamics to modified gravity\, and even connections to String Theory. For instance\, it has been shown that Hořava-Lifshitz gra vity and novel extensions can be described using dynamical Newton-Cartan g eometry. Furthermore\, Newton-Cartan geometry obeys a duality with its ult ra-relativistic cousin\, Carroll geometry. Carroll symmetries have been sh own to occur as symmetries of strongly coupled gravity and\, more recently \, of plane gravitational waves while a conformal extension of it is relat ed to the so-called BMS symmetry of flat-space holography. Finally\, study ing supersymmetric non-relativistic field theories on curved Newton–Cart an backgrounds enables one to apply powerful localization techniques to ex tract exact non-perturbative results for these field theories such as the partition function and the vacuum expectation value of Wilson lines.\n\nTh e aim of this interdisciplinary topical workshop is to advance these recen t exciting applications of NC geometry in different directions. It will en able participants from different backgrounds (Condensed Matter Physics\, M athematics\, Statistical Physics\, Gravity and String Theory) to interact and exchange new ideas. The first topical workshop on Applied Newton-Carta n Geometry was organised in March 2017 at the Simons Center for Geometry a nd Physics in Stony Brook (USA)\, see the webpage http://scgp.stonybrook.e du/archives/18337. This workshop was a huge success and led to many contac ts across different disciplines which otherwise would never have been esta blished. New directions where set in motion like novel applications of mas sive gravity in the Fractional Quantum Hall Effect\, the role of hydrodyna mics without boost invariance and new applications of torsion in holograph y and Condensed Matter Physics.The aim of this workshop is to repeat the s uccess of the Simons workshop and to give a significant boost to the emerg ing field of Applied Newton-Cartan Geometry and its cross-disciplinary opp ortunities.\n\nParticipants include:\n\n\n Alejandra Castro (University of Amsterdam)\n Jose Figueroa-O'Farrill (University of Edingburgh)\n Jelle H artong (University of Amsterdam)\n Petr Horava (UC Berkeley)\n Robert Leig h (University of Illinois\, Urbana)\n Djordje Minic (Virginia Tech)\n Jan Rosseel (University of Vienna)\n Marika Taylor (University of Southampton) \n\n\n(see the pdf file on left for the full list of final partipants)\n\n https://indico.mitp.uni-mainz.de/event/141/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/141/ END:VEVENT BEGIN:VEVENT SUMMARY:Challenges in Semileptonic B Decays DTSTART;VALUE=DATE-TIME:20180409T060000Z DTEND;VALUE=DATE-TIME:20180413T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-129@cern.ch DESCRIPTION:Two of the elements of the Cabibbo-Kobayasha-Maskawa quark mix ing matrix\, Vub and Vcb\, are extracted from semileptonic B decays. The r esults of the B factories\, analysed in the light of the most recent theor etical calculations\, remain puzzling\, because—for both |Vcb| and |Vub| —the exclusive and exclusive determinations are in tension by perhaps 3 σ. This discrepancy could be an indication for New Physics. Further\, mea surements in the tau channels at Belle\, Babar\, and LHCb show discrepanci es with the Standard Model predictions\, pointing to a possible violation of lepton flavour universality. LHCb and the upcoming experiment Belle-II have the potential to resolve the issue in the next few years.\n\nThis wor kshop follows a first successful MITP workshop held in 2015\, sharing with it the goal to develop a medium-term strategy of analyses and calculation s aimed at solving the puzzles. We plan to have lattice and continuum theo rists working together with experimentalists to discuss how to reshape the semileptonic analyses in view of the much higher luminosity expected at B elle-II\, searching for ways to systematically validate the theoretical pr edictions in both exclusive and inclusive B decays\, and to exploit the un expectedly rich possibilities at LCHb.\n\nIn this second workshop\, schedu led for the spring of 2018\, we will focus on the expanding prospects of s emileptonic decays at LHCb\, on the implications of the first Belle-II dat a\, on the possible violation of lepton universality\, as well as on progr ess in lattice QCD\, where first simulations treating b quarks like light quarks may become available.\n\nhttps://indico.mitp.uni-mainz.de/event/129 / LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/129/ END:VEVENT BEGIN:VEVENT SUMMARY:Tensions in the LCDM paradigm DTSTART;VALUE=DATE-TIME:20180514T060000Z DTEND;VALUE=DATE-TIME:20180518T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-130@cern.ch DESCRIPTION:The establishment of the Lambda Cold Dark Matter paradigm in C osmology has brought together physics on very diverse scales\, with a mesm erizing variety of observational techniques and a unique theoretical effor t. The consistency of this paradigm is today hindered by some tensions\, e ither of internal consistency between datasets of different nature\, or of seeming friction between theoretical predictions and observations. Observ ational and theoretical efforts are currently under way\, in order to both understand the possible sources of systematics affecting the data\, and t o explain these frictions on theoretical grounds. \n\nThis workshop aims a t bringing together the communities involved in this effort\, building a b ridge between observers and data analysists\, theorists\, and simulators\, in order to address the following fundamental questions about the tension s in the CDM paradigm: Is the current tension in the determination of Hubb le constant by different probes due to new physics\, or to systematics? Wh at are the real sources of the inconsistencies between theoretical predict ions and observations at the smallest galactic scales? Is it a problem tha t we are seeing no new physics at LHC? \n\nThe ideal\, two-fold\, goal of the topical workshop is that of understanding whether tensions appearing o n several scales are only episodical and disconnected from each other – and to which extent they are due to experimental systematics – or if the y represent real cracks in the building of the ΛCDM. In the latter case\, it remains to be assessed whether they are structural\, thus hinting towa rd a major revision of our vision of the cosmological Universe\, or they c an be cured with minor modifications at different scales\, separately.\n\n https://indico.mitp.uni-mainz.de/event/130/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/130/ END:VEVENT BEGIN:VEVENT SUMMARY:Precision Measurements and Fundamental Physics: The Proton Radius Puzzle and Beyond DTSTART;VALUE=DATE-TIME:20180723T060000Z DTEND;VALUE=DATE-TIME:20180727T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-132@cern.ch DESCRIPTION:The 2010 measurement of the Lamb shift (2S-2P energy differenc e) in the muonic hydrogen atom has created the “proton radius puzzle”: The proton charge radius Rp determined from the muonic hydrogen Lamb shif t differs by 4% or 6 standard deviations from the 2014 CODATA value of Rp which has been obtained from elastic electron-proton scattering and spectr oscopy of electronic hydrogen and deuterium.\n\nThe puzzle is both difficu lt and fascinating because it impacts and requires expertise from diverse areas of particle\, nuclear and atomic physics. Several new experiments ha ve been motivated by the puzzle and are starting to produce results. Corre spondingly\, there is a great deal of theory effort aimed at all aspects o f the puzzle.\n\nThe workshop will summarize new experimental results in a tomic spectroscopy and lepton scattering\; discuss new theoretical tools a nd ideas impacting structure effects in scattering and bound state problem s\; and explore new physics discovery potential with precision tests in mu onic and electronic systems.\n\nhttps://indico.mitp.uni-mainz.de/event/132 / LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/132/ END:VEVENT BEGIN:VEVENT SUMMARY:Scattering Amplitudes and Resonance Properties from Lattice QCD DTSTART;VALUE=DATE-TIME:20180827T060000Z DTEND;VALUE=DATE-TIME:20180831T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-133@cern.ch DESCRIPTION:\n\n[from D. R. Bolton\, R. A. Briceño\, D. J. Wilson\, Phy s. Lett. B757 (2016) 50-56\, arXiv:1507.07928]\n\nFigure 1: Postdiction o f the ππ → ππ scattering phase in the ρ channel\, made by fitting L QCD data at heavier pion masses using unitarized chiral perturbation theor y (ChPT)\, and then extrapolating to the physical pion mass.\n \n\nIn rec ent years\, Lattice QCD (LQCD) calculations of stable-hadron properties have become considerably more precise\, and as a result\, LQCD inputs ar e having an increasing impact on Standard-Model phenomenology. Considerin g this progress\, it is natural to also examine the prospects for using la ttice QCD to calculate the properties of unstable hadrons\, i.e. QCD reso nances that decay via the strong force. The extraction of resonance proper ties is much more challenging\, but also in this sector enormous progress has been made in the development of both theoretical methods and numerical techniques. A major focus here is the approach\, pioneered by Lüscher\, of relating finite-volume energies to infinite-volume scattering observab les. [See\, for example\, Figure 1.]\n\nThe long-term goal is to use LQCD to study various exotic resonances\, including the recently-discovered X\ , Y and Z states as well as excited nucleon states\, including the Roper resonance\, which decays predominantly to Nπ and Nππ.\n\n\n\n[J. Bulava \, B. Hörz\, B. Fahy\, K. J. Juge\, C. Morningstar\, C. H. Wong\, PoS LAT TICE2015 069\, arXiv:1511.02351]\n\nFigure 2: The time-like pion form fac tor\, as determined in a LQCD calculation with mπ ∼ 240 MeV. The curve corresponds to a Gounaris-Sakurai parameterization with the ρ-resonance m ass and the ρππ coupling determined from the lattice data.\n\nBeyond ex tracting QCD resonance properties\, one can also use the relation between finite- and infinite-volume matrix elements to study electroweak transitio ns. Applying these methods will allow one to extract resonance form facto rs and to perform precision tests of the Standard Model. For instance\, pr ocesses such as B → K* (di-lepton) → Kπ (di-lepton) are particularly important for LHCb phenomenology. Another example is the time-like pion f orm factor\, which can be related to the low-energy electron-positron anni hilation cross section and represents a crucial input quantity for the de termination of the hadronic-vacuum-polarization contribution to the anomal ous magnetic moment of the muon\, (g − 2)μ. Formalism for extracting th is quantity from LQCD is understood and numerical calculations are underwa y [See Figure 2].\n\nThe aim of this workshop is to bring together expert s in developing the formalism and lattice practitioners\, in order to revi ew the status of ongoing calculations and discuss future prospects. The wo rkshop will emphasize the future role of LQCD in precision resonance physi cs\, especially in the context of forthcoming experiments.\n\nhttps://indi co.mitp.uni-mainz.de/event/133/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/133/ END:VEVENT BEGIN:VEVENT SUMMARY:Quantum Fields – from Fundamental Concepts to Phenomenological Q uestions DTSTART;VALUE=DATE-TIME:20180926T070000Z DTEND;VALUE=DATE-TIME:20180928T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-134@cern.ch DESCRIPTION:Understanding the structure of quantum field theories and thei r observational consequences beyond the realm of perturbation theory const itutes one of the central challenges in theoretical physics. Progress alon g this research frontier may be the key for answering fundamental question s related to the structure of space\, time\, and matter. Following the ide a of “renormalizing the non-renormalizable”\, this route may even allo w for a unified description of all fundamental forces\, including gravity\ , within the framework of renormalizable quantum field theories.\n\nA cent ral tool for exploring this essentially uncharted territory are functional methods based\, e.g.\, on path integrals or functional renormalization gr oup equations. This workshop will survey recent developments\, flourishing from seminal contributions by Martin Reuter\, and future opportunities in this field. The scientific focus will cover fundamental aspects and a dis cussion of possible quantum gravity signatures observable in particle phys ics\, black holes\, and cosmology. The goal is to develop new roadmaps for obtaining a description of our world valid on all scales and identify new connections between the fundamental descriptions and phenomenological con sequences within the various approaches.\n\nInvited Speakers:\n\n\n \n \n Abhay Ashtekar\n Ennio Gozzi\n \n \n Daniel Becker\n Renate Lol l\n \n \n Dario Benedetti\n Max Niedermaier\n \n \n Alfio Bonann o\n Carlo Pagani\n \n \n Steve Carlip\n Alessia Platania\n \n \n Alessandro Codello\n Hartmann Römer\n \n \n Bianca Dittrich\n Christof Wetterich\n \n \n Walter Dittrich\n Andreas Wipf\n \n \n Gerald Dunne\n \n \n \n\n\nProceedings of the workshop will be publ ished by universe.\n\nhttps://indico.mitp.uni-mainz.de/event/134/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/134/ END:VEVENT BEGIN:VEVENT SUMMARY:Searching for New Physics with Cold and Controlled Molecules DTSTART;VALUE=DATE-TIME:20181126T070000Z DTEND;VALUE=DATE-TIME:20181130T175000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-176@cern.ch DESCRIPTION:Recently a remarkable progress has been achieved in control ov er both internal (electronic\, vibrational\, spin and rotational) and exte rnal (translational) degrees of freedom for a wide range of molecules. In particular\, direct laser and optoelectric cooling of polyatomic molecules has been successfully demonstrated. This opens a way for much higher prec ision in measuring tiny effects in molecular spectra connected with possib le new physical forces\, including exotic spin-dependent interactions\, pa rity (P) and time-reversal invariance (T) violating interactions among oth ers. In this connection\, considerable interest would present\, for exampl e\, identification of closed-shell and also chiral laser-coolable molecule s/ions. On the other hand\, consideration of P- and P\,T-odd effects for c lasses of molecules that were already successfully cooled and trapped is o f great interest. The workshop aims to bring together experimentalists and theorists working both on molecular control and cooling of molecules and ions and on the effects connected with new physical forces in these system s. The expected impact will likely include new proposals to search for the electron’s electric dipole moment\, nuclear anapole and Schiff moments\ , search for axion-like dark matter and other experiments using precisely controlled molecules. The workshop will also offer an opportunity to revie w the new directions in molecular cooling and control\, as well as achieve ments in laser and NMR techniques.\n\nhttps://indico.mitp.uni-mainz.de/eve nt/176/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/176/ END:VEVENT BEGIN:VEVENT SUMMARY:Future Challenges in Non-Leptonic B Decays: Theory and Experiment DTSTART;VALUE=DATE-TIME:20190114T070000Z DTEND;VALUE=DATE-TIME:20190118T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-177@cern.ch DESCRIPTION:Indirect searches at the precision frontier are of crucial imp ortance to test the Standard Model\, search for new physics\, and if found \, to fingerprint it. Quark flavor processes are central to this enterpris e. Of these\, non-leptonic decays of B mesons offer powerful tests of the Standard Model and unique opportunities to search for New Physics. In the coming years\, impressive amounts of experimental data on non-leptonic pro cesses will be accumulated\, mainly by the LHC and Belle-II. This will lead to an unprecedented precision of the different observables\, wh ich in order to be fully exploited requires a synergy of both theoretical and experimental efforts. The objective of this workshop is to bring toget her both theorists and experimentalists to devise a future strategy for th e analysis of non-leptonic B decays\, joining efforts coherently to make t he most out of the upcoming experimental data.\n\nhttps://indico.mitp.uni- mainz.de/event/177/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/177/ END:VEVENT BEGIN:VEVENT SUMMARY:LHCb and Belle II Opportunities for Model Builders DTSTART;VALUE=DATE-TIME:20190128T070000Z DTEND;VALUE=DATE-TIME:20190201T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-178@cern.ch DESCRIPTION:The flavor physics community is patiently preparing for the up coming physics run of the Belle II experiment\, which is expected the deep en our understanding of CP and flavor violation. While no signal of new ph ysics has been observed so far at the LHC in the high-energy frontier\, a set of surprising - albeit still inconclusive - hints of violation of lept on flavor universality have been observed in semi-leptonic B-decays by LHC b and the previous B factories BaBar and Belle\, renewing the interest in flavor physics of a broader community. The goal of this Topical Workshop i s to bring together Belle II and LHCb experimentalists and BSM model build ers to discuss the opportunities and new schemes for future Belle II measu rements in view of the present results from the LHC. The workshop will hav e a balanced schedule of theory and experimental talks as well as several discussion sessions to trigger more interaction among the leading experts in the field. The impact is expected on the Belle II community decision-ma king process about the future search priorities as well as on the determin ation of future research topics in the theory community. The main objectiv e is to better understand the Belle II potential to uncover new physics.\n \nhttps://indico.mitp.uni-mainz.de/event/178/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/178/ END:VEVENT BEGIN:VEVENT SUMMARY:The Mathematics of Linear Relations between Feynman Integrals DTSTART;VALUE=DATE-TIME:20190318T070000Z DTEND;VALUE=DATE-TIME:20190322T170000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-179@cern.ch DESCRIPTION:For the precise prediction of observables at particle collider s such as the LHC\, the computation of a large number of Feynman integrals is indispensable. A crucial step in these computations is the reduction t o a small set of master integrals by exploiting linear relations.\n\n \n\ nIn the standard approach such relations are derived from the famous integ ration-by-parts identities in momentum space and combined in Laporta's alg orithm. Such reductions can easily grow too large to be executed with reas onable computer resources. Motivated by this problem\, many new ideas on e fficient reductions of Feynman integrals were presented in the recent lite rature. This workshop is dedicated to the mathematical techniques behind t hese developments\, including finite field techniques\, Gröbner bases\, M ilnor numbers\, unitarity cuts and syzygy computations. In particular\, te chniques from algebraic geometry and the theory of D-modules have provided new insights. In an attempt to boost the exchange of ideas and the develo pment of advanced methods\, this workshop brings together mathematicians w ith relevant expertise\, physicists with experience in Feynman integral re ductions and specialists on computer algebra tools.\n\n \n\nInvited speak ers:\n\n\n Thomas Bitoun\n Janko Böhm \n Harald Ita \n Mikhail Kalmykov \n Kasper Larsen\n Roman Lee\n Viktor Levandovskyy\n Robert Schabinger\n O leg Tarasov\n Andreas von Manteuffel\n\n\nhttps://indico.mitp.uni-mainz.de /event/179/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/179/ END:VEVENT BEGIN:VEVENT SUMMARY:Quantum Vacuum: Renormalization Group and Anomalies in Cosmology DTSTART;VALUE=DATE-TIME:20190923T060000Z DTEND;VALUE=DATE-TIME:20190927T160000Z DTSTAMP;VALUE=DATE-TIME:20181216T223933Z UID:indico-event-187@cern.ch DESCRIPTION:The standard cosmological model is ΛCDM\, in which the domina nt dark energy component of the energy density of the universe is assumed to be a cosmological constant term\, which is of the same form as quantum vacuum energy. This suggests that quantum effects may be relevant at cosmo logical scales\, and leads to possible viable alternative models\, which m ay soon be testable with increasingly more detailed data. At the same time the direct detection of gravitational waves by LIGO has ushered in the er a of gravitational wave and multi-messenger astronomy\, which allow Einste in’s classical General Relativity to be put through more stringent tests in strong gravitational fields and finally probe possible quantum effects in extreme compact stars and black holes.The subject of the one-week topi cal workshop will be quantum effects in gravitation and cosmology\, in par ticular\, focusing on the following issues:\n\n\n Conformal Invariance\, t he Conformal Anomaly\, and Applications of the Effective Action of the Tra ce Anomaly to Cosmology\;\n The a and c Theorems and Application of Renorm alization Group Methods to Gravity and Cosmology\;\n Gravitational Condens ates\, Dynamical Vacuum Energy and Tests of the ΛCDM Model\;\n Quantum Ef fects in Black Holes\, Quantum Information\, and Prospects for Observation al Tests of Black Hole Physics with Gravitational Waves by aLIGO\;\n Gravi tational Stability of the Standard Model Higgs Field at High Energies and in Inflation.\n\n\nhttps://indico.mitp.uni-mainz.de/event/187/ LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ ersity 02.430 URL:https://indico.mitp.uni-mainz.de/event/187/ END:VEVENT END:VCALENDAR