Moving cosmological data analysis forward with differentiable forward models

Speakers: Thomas Floss (University of Vienna) Cosmology is about to receive a large influx of a variety of observational data, providing a promising avenue for addressing some of the most critical questions in fundamental physics. In this seminar, I will give a brief introduction to some of the concepts used in standard cosmological data analysis.I […]

New frontiers of Feynman Integral Computations: Mathematical Structures in Phenomenology

Salle des Sommets (LAPTh)

Speakers: Ekta Chaubey (U. Bonn) In this talk, I will discuss how to advance the mathematical understandingof multi-loop, multi-leg, and multi-scale Feynman integrals and to bridgethe gap between the mathematical framework of scattering amplitudes andtheir phenomenological applications. I will highlight their broad relevance,not only in achieving groundbreaking predictions for LHC observations butalso in extending their […]

New Physics from the “Hubble Tension”

Auditorium Vivargent (LAPTh)

Speakers: Vivian Poulin (LUPM (CNRS & U. de Montpellier)) Over the last decade, measurements of the expansion rate of the universe today, H0, made with cepheid-calibrated SN1a have become increasingly […]

A probabilistic approach to Toda Conformal Field Theories

Auditorium Vivargent (LAPTh)

Speakers: Baptiste Cerclé (EPFL) Conformal invariance is a feature that arises for a large class of models of statistical physics at criticality. To address the issue of understanding the conformal […]

Marios Petropoulos

Auditorium Vivargent (LAPTh)

https://indico.in2p3.fr/event/35662/

Niall Macpherson

Speakers: Niall Macpherson (Oviedo Univ.) . Abstract:  Link: Zoom AnLy: https://sites.google.com/view/anlystringsandfields     https://indico.in2p3.fr/event/35526/

Rafael Alves Batista

Auditorium Vivargent (LAPTh)

Speakers: Rafael Alves Batista https://indico.in2p3.fr/event/35589/

Implications of $B^+ to K^+ ubar u$ under rank-one flavour violation hypothesis

Salle de Sommets

Speakers: Claudio Toni We study the implications of the observed excess at Belle-II under the assumption of Rank-One Flavour Violation, i.e. that New Physics couples to a single specific direction in flavour space. By varying this direction we perform analyses at the level of the low-energy EFT, the SMEFT, and with explicit mediators such as […]

Taming projection effects in EFT of LSS analysis of DESI

Auditorium Vivargent (LAPTh)

Speakers: Marco Bonici (INAF-IASF Milano) The analysis of galaxy clustering measurements from surveys like Euclid or DESI is likely to be affected by the so-called projection effects, which causes the 1D marginals of the analysis to not contain the bestfit; this is a serious issue which can potentially harm the cosmological interpretation of these analyses. […]

L’héliocentrisme selon Copernic

Auditorium Vivargent (LAPP / LAPTh)

Speakers: Richard Taillet (Université de Savoie/LAPTH) L'hypothèse d'un univers héliocentrique formulée par Nicolas Copernic en 1543, en opposition au modèle géocentrique dit « de Ptolémée » et en vigueur depuis plus d’un millénaire, marque un tournant majeur dans notre conception du monde, au point que l’expression « révolution copernicienne » est entrée dans le langage […]

Zucheng Gao – Chasing parity-violating signature in large-scale structure cosmology

Salle de Sommets

Speakers: Zucheng Gao Parity-violating has been found in the weak interactions. In cosmology, certain inflation mechanism can also introduce parity-violating imprints on the primordial fluctuations. Here we present theoretically how the parity-violating signature enters large-scale structure (LSS), based on Eulerian perturbation theory (EPT). We develop an effective estimator to extract parity-violating information from LSS. We […]