Progress on Old and New Themes in cosmology (PONT) 2020

Europe/Paris
Chambre du Trésorier (Palais des Papes, Avignon)

Chambre du Trésorier

Palais des Papes, Avignon

Description

NEWS [17.3.2020]: Because of the COVID-19 outbreak and in compliance with public health policies, the conference is moved to 7-11 December 2020.
An email message is sent to all registered participants today.

 

The conference will address the cardinal issues of the dark universe today, gathering a selected number of scientists working in cosmology and particle physics in the inspiring and monumental setting of Avignon. There will be a limited number of review talks by leading experts in each field and selected contributed talks, fostering thorough debates. Some time will be allocated to discussion sessions.

Organizers:  
   Philippe Brax (CEA IPhT Saclay)
   Chiara Caprini (CNRS APC Paris)
   Marco Cirelli (CNRS LPTHE Jussieu Paris)
   Christian Marinoni (CPT Marseille)

Registration
Registration Form
Participants
  • Adam Riess
  • Adrien Kuntz
  • Ahmad Sheykhi
  • Alexander Bonilla Rivera
  • Alexander Dolgov
  • Alexey Grobov
  • Angelo Raffaele Fazio
  • Bivudutta Mishra
  • Carlo Contaldi
  • Chiara Caprini
  • Christian Marinoni
  • Christof Wetterich
  • Clement STAHL
  • Cristina Benso
  • Dario Bettoni
  • David Andriot
  • Deanna Hooper
  • Diego Blas Temino
  • Dionysis Karagiannis
  • Dominik Schwarz
  • Drazen Glavan
  • Elena Arbuzova
  • Elena Pinetti
  • Eleonora Di Valentino
  • Federico Piazza
  • Felix Mirabel
  • Goran Jarlskog
  • Guillermo Franco Abellán
  • Harry Desmond
  • Herwig Dejonghe
  • Ilia Musco
  • Jacopo Ghiglieri
  • Jan-Albert Viljoen
  • Johannes Herms
  • Jose Beltran Jimenez
  • Jose Ramon Espinosa
  • José Matias-Lopes
  • Juho Lankinen
  • Julien Bel
  • Julien Lavalle
  • Justin Feng
  • Kemal Gultekin
  • Kenza ZEGHARI
  • Laurent Chevalier
  • Levon Pogosian
  • Ludovic Montier
  • Man Ho Chan
  • Marco Cirelli
  • Marco Drewes
  • Mariam Rashid
  • MATTEO LUCCA
  • Michele Frigerio
  • Micol Benetti
  • Miguel Zumalacarregui
  • Mohamed Amine Ouahid
  • Mohamed Rameez
  • Mohammad Ali Gorji
  • Nick Kaiser
  • Nicola Tamanini
  • Ningqiang Song
  • Noemi Frusciante
  • Nora NICOLAS
  • Oleg Lebedev
  • Patrick Valageas
  • philippe brax
  • Pierre Astier
  • Pierre TAXIL
  • Pierre Vanhove
  • Pradyumn Kumar Sahoo
  • Ricardo Landim
  • Riccardo Murgia
  • Robert Brandenberger
  • Rodrigo Calderon
  • Roger Mayala
  • Romain Codur
  • Roy Maartens
  • Sachiko Kuroyanagi
  • Saurya Das
  • Saurya Das
  • Silvia Galli
  • Simone Biondini
  • Sreemanti Chakraborti
  • Sébastien Clesse
  • THOMAS HAMBYE
  • Tien-Tien Yu
  • Tokareva Anna
  • Tristan Smith
  • Valeri Vardanyan
  • Zakaria Belkhadria
Contact the organizers
    • 09:00 12:30
      Invited talks: Observational Cosmology
      • 09:00
        TBA 30m
        Speaker: Nick Kaiser
      • 09:40
        TBA 30m
        Speaker: Pierre Astier
      • 10:20
        Coffee break 20m
      • 10:40
        TBA 30m
        Speaker: Ludovic Montier
      • 11:20
        TBA 30m
        Speaker: Roy Maartens
      • 12:00
        TBA 25m
        Speaker: Eleonora Di Valentino (Institut d'Astrophysique de Paris)
    • 12:30 14:30
      Lunch break 2h
    • 14:30 15:40
      Invited talks: Observational Cosmology
      • 14:30
        TBA 30m
        Speaker: Adam Riess
      • 15:10
        TBA 25m
        Speaker: Silvia Galli
    • 15:40 18:15
      Contributed talks
    • 18:15 20:15
      Social events: Welcome cocktail
    • 09:00 12:30
      Invited talks: Dark Matter and Dark Energy
      • 09:00
        TBA 30m
        Speaker: Sébastien Clesse (Catholic University of Louvain)
      • 09:40
        TBA 30m
        Speaker: Tien-Tien Yu (University of Oregon (US))
      • 10:20
        Coffee Break 20m
      • 10:40
        TBA 30m
        Speaker: Noemi Frusciante (Instituto de Astrofísica e Ciências do Espaço)
      • 11:20
        TBA 30m
        Speaker: Dr Harry Desmond (University of Oxford)
      • 12:00
        TBA 25m
        Speaker: Diego Blas (KCL)
    • 12:30 14:30
      Lunch break 2h
    • 14:30 15:30
      Invited talks
      • 14:30
        Cosmological reconstructions of gravity 25m

        We use data from cosmological survey to jointly reconstruct phenomenological functions of redshift describing departure of dark energy from the cosmological constant and possible modified gravity effects in the evolution of large scale structure. I will focus on the dependence of such reconstructions on the underlying assumptions and their implications for dark energy and modified gravity theories.

        Speaker: Prof. Levon Pogosian (Simon Fraser University)
      • 15:00
        Dark matter direct detection: present scenario and future prospects 25m

        Profound evidence for the existence of dark matter has been collected throughout the past 100 years. However, its exact nature remains elusive. A large effort is being put into the search for direct detection of weakly interacting massive particles (WIMPs), which arise as dark matter particle candidates in various theories. The search is led by dual-phase liquid xenon time projection chambers for masses above 5 GeV/c2. The most sensitive experiment, XENON1T, probes spin-independent (SI) WIMP-nucleon interactions down to 4.1 × 10−47 cm2 for 30 GeV/c2 WIMP mass. This limit refers to the SI isoscalar channel, which, for vanishing momentum transfer q, scales quadratically with the number of nucleons A. The SI interaction thus yields the dominant nuclear response, making it the standard search channel in the field.
        We will browse through the different technical approaches used in the present dark matter direct detection scenario as well as its future prospects.

        Speaker: Prof. José Matias-Lopes (Coimbra University)
    • 15:30 18:00
      Contributed talks
    • 09:00 12:30
      Invited talks: The Early Universe
      • 09:00
        TBA 30m
        Speaker: Robert Brandenberger (McGill University)
      • 09:40
        TBA 30m
        Speaker: Christof Wetterich (Heidelberg University)
      • 10:20
        Coffee Break 20m
      • 10:40
        TBA 30m
        Speaker: Marco Drewes (Universite Catholique de Louvain (UCL) (BE))
      • 11:20
        TBA 30m
        Speaker: Jacopo Ghiglieri (Centre National de la Recherche Scientifique (FR))
      • 12:00
        A fresh look at the calculation of tunneling actions 25m

        The calculation of tunneling actions, that control the exponential
        suppression of the decay of metastable phases (like the unstable
        electroweak vacuum), can be reformulated as an elementary variational
        problem in field space. This alternative approach circumvents the use of
        bounces in Euclidean space by introducing an auxiliary function, a
        tunneling potential Vt that connects smoothly the metastable and stable
        phases of the field potential V. The tunneling action is obtained as the
        integral in field space of an action density that is a simple function
        of Vt and V and can be considered as a generalization of the thin-wall
        action to arbitrary potentials. This formalism provides new handles for
        the theoretical understanding of different features of vacuum decay, can
        be easily extended to include gravitational effects in an elegant way
        and has a number of useful applications that I will discuss.

        Speaker: Prof. Jose Ramon Espinosa (IFT-UAM/CSIC)
    • 12:30 14:30
      Lunch break 2h
    • 14:30 18:00
      Contributed talks
    • 19:30 22:30
      Social events: Banquet
    • 09:00 12:30
      Invited talks: Gravitational Waves
      • 09:00
        TBA 30m
        Speaker: Sachiko Kuroyanagi (Tokyo University of Science)
      • 09:40
        TBA 30m
        Speaker: Dr Miguel Zumalacarregui (University of California at Berkeley)
      • 10:20
        Coffee Break 20m
      • 10:40
        TBA 30m
        Speaker: Nicola Tamanini (IPhT CEA/Saclay)
      • 11:20
        TBA 30m
        Speaker: Carlo Contaldi (Imperial College London)
      • 12:00
        TBA 25m
        Speaker: Pierre Vanhove
    • 12:30 14:30
      Lunch break 2h
    • 14:30 18:00
      Contributed talks
    • 09:00 12:30
      Contributed talks
    • 12:30 14:30
      Lunch Break 2h
    • 14:30 17:30
      Contributed talks