4th LISA Cosmology Working Group Workshop

16 Oct 2017, 09:30 → 20 Oct 2017, 16:00 Europe/Berlin

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

This is the 4th LISA Cosmology Working Group Workshop. 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 is therefore time to precisely assess the capability of the new LISA configuration to test different aspects of cosmology and fundamental physics. Moreover, the community must start to dwell on new issues connected with data analysis techniques and with the needs of the LISA Consortium to address ESA requests. The goal of the present workshop is to obtain concrete results in this respect, therefore, it will be dedicated mostly to collaborative work in teams, accompanied by a few seminars on new results.

The workshop will cover the following main topics:

• First order phase transitions
• Detection of stochastic backgrounds
• Topological defects
• Standard sirens
• Testing General Relativity
• Inflation and beyond
• Primordial black holes and dark matter
• Structure formation

Executive Summary (PDF) Lisa6.pdf

Participants (PDF) LISA_List_INDICO_2017-10-10.pdf

Monday, 16 October

Coffee

Welcome

Convener: Prof. Matthias Neubert (Johannes Gutenberg University Mainz)

Update on LISA, Discussions, Structure of the Workshop

Convener: Germano Nardini

1 Presentation of the workshop and program discussion

2 Status of LISA

Speaker: Martin Hewitson

Slides Hewitson_LISA_status_CosWorkshop.pdf

3 Sensitivity curve

Speaker: Antoine Petiteau

Slides Petiteau_LISASensitivity_LISACosmoWG_1710_OK.pdf

4 Discussion: organisation of the Consortium, CosWG, milestones

Phase Tansitions I

Convener: Thomas Konstandin

5 Electroweak bubble wall speed limit

Speaker: Guy Moore (TU Darmstadt)

Slides Moore_run_30min.pdf

6 Runaway discussion, update of CosWG document

Speaker: Jonathan Kozakzuk

Slides Kozaczuk_Bubble_wall_speed_limit_discussion.pdf

7 Vacuum Transitions

Speaker: Daniel Cutting

Slides Cutting_SimulatingVacuumPhaseTransition.pdf

8 Models & LHC complementarity

Speaker: Jose Miguel No

Slides LISA_LHC_CosmoWG_Mainz-1.pdf

Coffee

Topological Defects

Convener: Daniele Steer

9 GWs from field theory simulations

Speakers: Daniel Figueroa, Mark Hindmarsh

Slides Hindmarsh_netmovie512_001_0020.jpeg

10 Latest on NG simulations + constraints

Speakers: Daniele Steer, Maria Sakellariadou

Slides Sakellariadou_Mainz-CS.pdf

11 “Free-parameter" constraints

Speaker: Sotiris Sanidas

Slides Sanidas_LISACosWG_Mainz_2017_sanidas.pdf

Welcome drink (Celebration of Nobel Prize for GWs, and possibly a new type of merger announced earlier today?)

Tuesday, 17 October

Coffee

Phase Transitions II

Convener: Pedro Schwaller (JGU Mainz)

12 Spectra - Introduction

13 Turbulence and Hubble damping

Speaker: Chiara Caprini

14 Sound Shell Model

Speaker: Marc Hindmarsh

Slides Hindmarsh_LCWG_Mainz_1710_MBH.pdf

15 Some new simulation results

Speaker: Thomas Konstandin

Slides Konstandin_seminar.pdf

16 Spectra - Discussion

Probing BSM in astrophysics with GWs

Convener: Valerie Domcke

17 Constraints on axion-like particles with LIGO and LISA

Speaker: Enrico Barausse

Slides barausse_mainz.pdf

18 Discussion

Discussion of LIGO papers

Coffee

Inflation

Convener: Daniel Figueroa

19 LISA and inflation

Speaker: A. Ricciardone

Slides Ricciardone_LISA_Inflation_Mainz.pdf

20 Broken isometries in inflation

Speaker: G. Tasinato

Slides Tasinato-Inflation.pdf

21 PBHs from inflation

Speaker: J. Garcia-Bellido

22 Some extra infos

Speaker: M. Peloso

Wednesday, 18 October

Coffee

Discussion on Work Packages

Data processing & data challenges, detection of a SGWB

Conveners: Antoine Petiteau, Stas Babak

23 Data processing centre

Speakers: Antoine Petiteau, Stanislav Babak

24 LISA data challenges

Speakers: Antoine Petiteau, Stanislav Babak

Slides Babak_LDC_Mainz.pdf

PRISMA Colloquium by Raphael Flauger (Lorentz-Raum 05-127, Staudingerweg 7)

Data processing & data challenges, detection of a SGWB II

25 SGWB via frequency bins

Speaker: Germano Nardini

Slides coswg.pdf

26 A COSMOMC-like proposal

Speaker: Mark Hindmarsh

27 Chirality at Earth-based interferometers

Speaker: Marco Peloso

Illustrative and explicit example of stochastic background reconstruction

Conveners: Antoine Petiteau, Stanislav Babak

slides Babak_CGW_Mainz.pdf

Coffee: & free discussion

Standard Sirens

Convener: Chiara Caprini

28 Standard sirens at LISA

Speaker: Nicola Tamanini

Slides Tamanini_Talk.pdf

29 How MBHB are formed and their counterparts

Speaker: Enrico Barausse

Slides Barausse_mainz_sirens.pdf

30 Method without counterpart

Speaker: Antoine Petiteau

31 Discussion: measurement of H0 and what's next

Thursday, 19 October

Coffee

Modified GR and Cosmology

Convener: Diego Blas

32 Overview of the topic

Speaker: D. Blas

33 GW170817

Speaker: M. Sakellariadou

Slides LISA-COSMO-ms.pdf

34 Theories of gravity after GW170817

Speaker: G. Tasinato

Slides Tasinato-ModifiedGravity.pdf

35 Discussion

Primordial Black Holes

Convener: Marco Peloso

36 Phenomenological aspects of PBHs

Speaker: J. Garcia-Bellido

Slides LISA_MITP_JGB.pdf

37 Phenomenology associated to second-order GWs

Speaker: M. Peloso

Slides peloso_talk.key.pdf

38 Further phenomenological aspects of inflation

Speaker: M. Pieroni

Slides Slides.pdf

39 Other GW experimetns and their connection to inflation

Speaker: R. Flauger

Coffee

Work on Projects

Friday, 20 October

Coffee

Discussion on CosWG

Convener: Germano Nardini

40 Financial resources

Speaker: M. Hindmarsh + A. Tranberg

41 Next CosWG workshop

Speaker: Mark Hindmarsh

42 Improving the CosWG and the interaction with the other WGs (Discussion)

Speaker: Germano Nardini

Work on Projects

Work on Projects

Coffee: Goodbye coffee