Exploring the Energy Ladder of the Universe

Europe/Berlin
02.430 (Mainz Institute for Theoretical Physics, Johannes Gutenberg University)

02.430

Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Staudingerweg 9 / 2nd floor, 55128 Mainz
Description

Despite the breathtaking progress in observational cosmology in the last 15 years the established ΛCDM cosmological model does not provide any direct indication of the existence of new energy scales, beyond the traditional Big Bang Nucleosynthesis (BBN) and recombination scales. This is also despite the fact that the solutions of the four cosmological puzzles, coming from a ΛCDM- Standard Model clash, strongly point to the existence of new energy scales in the early Universe and that these typically require temperatures much above the BBN scale. For example, models of baryogenesis usually require an energy scale close to or much above the electroweak scale. Models of Dark Matter production imply new energy scales spanning from keV, in the case of a sterile neutrino Dark Matter, to energies close, for example, to the GUT scale in the case of super heavy Dark Matter. This frustrating picture might rapidly change in the next years in view of the restart of the LHC collider (LHC second stage), new expected information on the light neutrino mass matrix (mixing parameters and absolute mass scale), new possible cosmological observations (e.g. a non-vanishing tensor-to-scalar perturbations ratio), and many other experimental sources.

The Scientific Program would discuss to what extent new energy scales in the early Universe can be considered established or on the verge of being excluded, in particular trying to address: (i) Whether a TeV scale for baryogenesis (including leptogenesis) is indicated or cornered from the data. (ii) Whether a Dark Matter traditional WIMP thermal production should be still considered the standard paradigm. (iii) `How Hot was the early Universe', trying to pin down the most plausible value of the reheat temperature in the early Universe.

Indicatively the first week will be devoted to models able to address the cosmological puzzles (Dark Matter, Baryogenesis, Inflation and all possible connections) and the second week to phenomenological tools, implications and connections (e.g. kinetic theory in the early Universe, DM searches, constraints on inflationary models, reheat temperature bounds, tests of cosmological models with (astro-)particle physics).

The Scientific program will also host a

MINI-WORKSHOP ON `BEYOND THE WIMP PARADIGM', WEDNESDAY 8 JUNE 

Organizers: Rouzbeh Allahverdi (chair), Pasquale Di Bari, Steve King

SCHEDULE :
14.30 Marco Drewes, Sterile Neutrinos
15.00 Angnis Schmidt-May, Gravitational Origin of Dark Matter

15.30 Coffee

16.15 Stefano Morisi, Dark matter scenarios @ IceCube
16.45 Masaki Asano, Is DM elementary composite or partially composite?

Executive Summary (PDF)
Participants (PDF)
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Programme (PDF)
    • 09:20 10:00
      Coffee and Refreshments
    • 10:00 12:30
      Welcome and a Workshop Roadmap

      General presentation of the workshop and practical information

    • 12:30 14:30
      .
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning talks
      Convener: Rouzbeh Allahverdi
      • 10:00
        Little Warm Inflation 1h 02.430

        02.430

        Mainz Institute for Theoretical Physics, Johannes Gutenberg University

        Speaker: Mar Bastero-Gil
        Slides
      • 11:00
        Coffeee 30m 02.430 (Mainz Institute for Theoretical Physics, Johannes Gutenberg University)

        02.430

        Mainz Institute for Theoretical Physics, Johannes Gutenberg University

        Staudingerweg 9 / 2nd floor, 55128 Mainz
      • 11:30
        Higgs portal coupling and Inflation 1h 02.430

        02.430

        Mainz Institute for Theoretical Physics, Johannes Gutenberg University

        Staudingerweg 9 / 2nd floor, 55128 Mainz
        Speaker: Carlos Tamarit
    • 12:30 14:30
      Lunch
    • 14:30 15:00
      Discussion
      Convener: Rouzbeh Allahverdi
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning talks
      Convener: Zurab Tavartkiladze
      • 10:00
        F-theory models and their predictions for new physics phenomena 1h
        Speaker: George Leontaris
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Residual Symmetries in SO(10) models 1h
        Speaker: Borut Bajc
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      Convener: Zurab Tavartkiladze
      • 14:30
        Some cosmological aspects of SO(10) GUT's 1h
        Speaker: Sofiane Boucenna
        Slides
    • 15:30 16:00
      Discussion
      Convener: Zurab Tavartkiladze
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning Talks
      Convener: Mar Bastero-Gil
      • 10:00
        Baryogenesis with R-parity violation 1h
        Speaker: Laura Covi
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Exo-Higgs at 750 GeV and the Genesis of Baryons 1h
        Speaker: Hooman Davoudiasl
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      Convener: Mar Bastero-Gil
      • 14:30
        Particle physics models of inflation and reheating 1h
        Speaker: Stefan Antusch
        Slides
    • 15:30 16:00
      Discussion
      Convener: Mar Bastero-Gil
    • 09:00 10:00
      Coffee and Refreshments
    • 10:00 12:30
      Morning Talks
      • 10:00
        Flavour-covariant approach to leptogenesis 1h
        Speaker: Bhupal Dev
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Predicting Leptonic $C\!P$ Violation and Leptogenesis 1h
        Speaker: Zurab Tavartkiladze
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      • 14:30
        Right handed symmetry at a low scale 1h
        Speaker: Urjit Yamjik
        Slides
    • 15:30 16:00
      Discussion
    • 09:00 10:00
      Coffee and Refreshments
    • 10:00 12:30
      Morning Talks
      Convener: Fedor Bezrukov
      • 10:00
        UV completion of Higgs inflation 1h
        Speaker: Anupam Mazumdar
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Moduli Vacuum Misalignment and Precise Predictions in String Inflation 1h
        Speaker: Koushik Dutta
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      Convener: Fedor Bezrukov
      • 14:30
        Solving five problems of particle physics and cosmology in one stroke 1h
        Speaker: Guillermo Ballesteros
        Slides
    • 15:30 16:00
      Discussion
      Convener: Fedor Bezrukov
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning Talks
      Convener: Borut Bajc
      • 10:00
        SM vacuum stability and the early Universe 1h
        Speaker: Fedor Bezrukov
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Non-thermal WIMPs: Opportunities and Challenges 1h
        Speaker: Rouzbeh Allahverdi
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      Convener: Borut Bajc
      • 14:30
        Bound state effects on dark matter phenomenology: from the early universe to the LHC 1h
        Speaker: Seng Pei Liew
        Slides
    • 15:30 16:00
      Discussion
      Convener: Borut Bajc
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning Talks
      Convener: Rouzbeh Allahverdi
      • 10:00
        Production of keV sterile neutrino Dark Matter in the early Universe 1h
        Speaker: Alex Merle
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Implication of the candidate detection of DM in the X-ray 1h
        Speaker: Kevork Abazajian
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 18:00
      MINI_WORKSHOP ON "BEYOND THE WIMP PARADIGM"
      Convener: Rouzbeh Allahverdi
      • 14:30
        Sterile Neutrinos 30m
        Speaker: Marco Drewes
      • 15:00
        Gravitational Origin of Dark Matter 30m
        Speaker: Angnis Schmidt-May
        Slides
      • 15:30
        Coffee 45m
      • 16:15
        Dark matter scenarios @ IceCube 30m
        Speaker: Stefano Morisi
        Slides
      • 16:45
        Is DM elementary composite or partially composite? 30m
        Speaker: Masaki Asano
        Slides
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning Talks
      Convener: Alex Merle
      • 10:00
        Z'_BL portal dark matter and LHC Run-2 results 1h
        Speaker: Nobuchika Okada
        Slides
      • 11:00
        Coffee 30m
      • 11:30
        Radiative neutrino mass with eV-keV scale sterile neutrino and a stable cold dark matter candidate 1h
        Speaker: Debasish Borah
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      Convener: Alex Merle
      • 14:30
        Gravitational lenses as a probe of dark matter models 1h
        Speaker: Ayuki Kamada
        Slides
    • 15:30 16:30
      Discussion
      Convener: Alex Merle
    • 16:30 17:00
      Coffee 30m
    • 17:00 17:30
      Special Talk
      Convener: Fedor Bezrukov
      • 17:00
        On the frame problem in Inflation 30m
        Speaker: Apostolos Pilaftsis
        Slides
    • 09:00 10:00
      Coffee and refreshments
    • 10:00 12:30
      Morning Talks
      Convener: Steve King
      • 10:00
        Impact of nonstandard interactions on sterile neutrino searches at IceCube 1h
        Speaker: Danny Marfatia
      • 11:00
        Coffee 30m
      • 11:30
        Terrestrial matter effects in low-energy (anti)neutrino oscillations 1h
        Speaker: Zhi-zhong Xing
        Slides
    • 12:30 14:30
      Lunch
    • 14:30 15:30
      Afternoon Talk
      Convener: Steve King
      • 14:30
        Relic RH Dirac nu and CnuB 1h
        Speaker: Shun Zhou
    • 15:30 16:00
      Discussion
      Convener: Steve King
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