Name: Particle Physics in the Early Universe
Start: 2026-09-14T09:00:00+02:00
End: 2026-09-18T20:00:00+02:00
Location: No location set

Particle Physics in the Early Universe

de lundi 14 septembre 2026 (09:00) à vendredi 18 septembre 2026 (20:00)

lundi 14 septembre 2026

09:00 Registration and Coffee
Registration and Coffee
09:00 - 09:45
09:45 Welcome - Yann Mambrini (CNRS, IJCLab, Université Paris-Saclay)
Welcome
- Yann Mambrini (CNRS, IJCLab, Université Paris-Saclay)
09:45 - 10:00
10:00 Monday
10:00 - 11:30
Room: 100/-1-A900 - Auditorium Joliot Curie
Contributions

10:00 Searching for cosmic superstrings in Gravitational Waves and the CMB - Ed Copeland

10:45 Dark Matter from a Slightly Broken Mirror - Juri Smirnov (University of Liverpool)
11:30 Coffee break
Coffee break
11:30 - 12:00
12:00 Monday
12:00 - 12:45
Room: 100/-1-A900 - Auditorium Joliot Curie
Contributions

12:00 Developments in gravitational particle production - Oleg Lebedev (University of Helsinki)
12:45 Lunch break
Lunch break
12:45 - 14:00
14:00 Monday
14:00 - 15:30
Room: 100/-1-A900 - Auditorium Joliot Curie
Contributions

14:00 Nonthermal leptogenesis via cosmological gravitational particle production - Rocky Kolb (The University of Chicago)

14:45 Geodesic Completeness in General Cosmological Scenarios - William Kinney (Univ. at Buffalo, SUNY)
15:30 Coffee Break
Coffee Break
15:30 - 16:00
16:00 Monday
16:00 - 17:30
Room: 100/-1-A900 - Auditorium Joliot Curie
Contributions

16:00 Non-compact QCD axion and its gravitational origin - Mikhail Shaposhnikov (EPFL)

16:45 Primordial lepton asymmetries: constraints and consequences - Julien Froustey (IFIC, CSIC-UV)
17:30 Free discussions
Free discussions
17:30 - 19:00

19:00 Dinner at "Le Gramophone" in Orsay
Dinner at "Le Gramophone" in Orsay
19:00 - 22:00
mardi 15 septembre 2026

09:50 Welcome
Welcome
09:50 - 10:00
10:00 Tuesday
10:00 - 11:00
Contributions

10:00 Neutrino mass and gravitational waves from RG fixed points - Kamila Kowalska (National Centre for Nuclear Research)

10:30 Gravitational Waves from Strongly Supercooled Cosmological Phase Transitions - Marek Lewicki (University of Warsaw & AstroCeNT)
11:00 Coffee Break
Coffee Break
11:00 - 11:30
11:30 Tuesday
11:30 - 12:30
Contributions

11:30 (Gravitational) Ultra-relativistic freeze-out during reheating - Mathieu Gross (IJCLab)

12:00 Discussion of the LZ event - Juri Smirnov (University of Liverpool) Pedro Schwaller (Mainz University)
12:30 Lunch Break
Lunch Break
12:30 - 14:00
14:00 Tuesday
14:00 - 15:30
Contributions

14:00 TBA: astrophysical and other implications - Zurab Berezhiani (University of Aquila)

14:30 Gravitational Waves from Primordial Black Hole Reheating - Yann GOUTTENOIRE (IAP)

15:00 Coupled Dark Energy and Dark Matter for DESI: An Effective Guide to the Phantom Divide - Stephen King
15:30 Coffee Break
Coffee Break
15:30 - 16:00
16:00 Tuesday
16:00 - 17:00
Contributions

16:00 Thermalization Process during Reheating and Gravitational Waves - Kyohei Mukaida

16:30 Stabilizing dark matter with quantum scale symmetry - Enrico Maria Sessolo (National Centre for Nuclear Research, Warsaw)
17:00 Free Discussions
Free Discussions
17:00 - 19:00
mercredi 16 septembre 2026
10:00 Wednesday
10:00 - 11:00
Contributions

10:00 Searching for Primordial Features in the Cosmic Microwave Background - Matteo Braglia (CERN)

10:30 Axion inflation with gauge fields: backreaction and signatures - Marco Peloso (University of Padua and INFN, Sezione di Padova)
11:00 Coffee Break
Coffee Break
11:00 - 11:30
11:30 Wednesday
11:30 - 12:30
Contributions

11:30 A unique coupling of the massive spin-2 field to supergravity - Emilian Dudas (CPTHE (Ecole polytechnique))

12:00 Nouvelle Cuisine - Matthew Mccullough (CERN)
12:30 Lunch Break
Lunch Break
12:30 - 14:00
14:00 Wednesday
14:00 - 15:30
Contributions

14:00 Constraining Dissipative Inflation with Open Effective Field Theories - Thomas Colas (DAMTP - University of Cambridge)

14:30 Primordial black hole formation from self-resonant preheating in single-field inflation? - Pasquale SERPICO (LAPTh)

15:00 Microcausality and the Cosmological Collider - David Stefanyszyn (University of Nottingham)
15:30 Coffee Break
Coffee Break
15:30 - 16:00
16:00 Wednesday
16:00 - 17:00
Contributions

16:00 Supercooled cosmological phase transitions: precise predictions and particle production - Bogumiła Świeżewska (University of Warsaw)

16:30 New probes of supercool phase transitions and domain walls at PTA frequencies - Pedro Schwaller (Mainz University)
17:00 Free Discussions
Free Discussions
17:00 - 19:00

19:45 Reception in the Polish Embassy
Reception in the Polish Embassy
19:45 - 21:15
jeudi 17 septembre 2026
10:00 Thursday
10:00 - 11:00
Contributions

10:00 QCD-driven Warm Inflation: A testable mechanism to set the Hot Big Bang initial conditions - Marco Drewes (UCLouvain)

10:30 Gravitational production of Sterile Neutrinos - Fotis Koutroulis (IHEP, Beijing)
11:00 Coffee Break
Coffee Break
11:00 - 11:30
11:30 Thursday
11:30 - 12:30
Contributions

11:30 A Stochastic Gravitational Wave Background - Ruth Durrer (Université de Genève, DPT)

12:00 Cosmology with LISA and related Figures of Merit - Chiara Caprini (CERN and University of Geneva)
12:30 Lunch break
Lunch break
12:30 - 14:00
14:00 Thursday
14:00 - 15:30
Contributions

14:00 A Laplace-space approach to cosmological correlators - Sébastien RENAUX-PETEL (IAP - CNRS)

14:30 Modelling Ultra-Slow-Roll Inflation - David Wands (University of Portsmouth)

15:00 One-loop freezing of the primordial curvature perturbation - Lucas PINOL (CNRS, LPENS)
15:30 Coffee Break
Coffee Break
15:30 - 16:00
16:00 Thursday
16:00 - 17:30
Contributions

16:00 Seesaw cosmology - Nicolás Bernal (New York University Abu Dhabi)

16:30 Self-interacting dark matter: non-perturbative dynamics - Ayuki Kamada (University of Warsaw)

17:00 New dark matter signals from semiannihilation - Alejandro Ibarra (Technical University of Munich)
17:30 Free Discussions
Free Discussions
17:30 - 19:00

19:00 Conference dinner in "Piccolino Parigi"
Conference dinner in "Piccolino Parigi"
19:00 - 22:00
vendredi 18 septembre 2026
09:30 Friday
09:30 - 11:00
Contributions

09:30 A review of pheno constraints on EWBAU models - Marta Losada (NYU Abu Dhabi)

10:00 Testing α-attractor models of inflation by CMB and reheating temperature - Marek Olechowski (University of Warsaw)

10:30 Freeze-In Composite Dark Matter - Kazuki Sakurai (University of Warsaw)
11:00 Coffee Break
Coffee Break
11:00 - 11:30
11:30 Friday
11:30 - 13:00
Contributions

11:30 Unveiling the Dark Ages - JOE Silk (IAP/JHU)

12:00 Cosmological correlators beyond the symmetric lamppost - Xi Tong (DAMTP, University of Cambridge)

12:30 Quantum and classical fluctuations in inflation - Guillermo Ballesteros (University of Madrid)
13:00 Lunch and Farewell
Lunch and Farewell
13:00 - 14:00

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