Speakers: Claudia Fevola (Inria-Saclay) Feynman integrals play a central role in particle physics, particularly in the theory of scattering amplitudes. A key challenge lies in identifying the values of physical parameters at which a given integral develops singularities. In this talk, I will present examples demonstrating how the interplay between algebro-geometric methods and fundamental physics […]

Speakers: Oliver Schlotterer (Uppsala Universitet) https://indico.in2p3.fr/event/35296/

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 […]

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 […]

Speakers: Miguel Montero (IFT Madrid) . Abstract: I will discuss how generic quantum corrections lift the moduli space of BPS branes in 4d N=1 scale-separated solutions like DGKT. This means that there is a tension between this scenario and the WGC for membranes, which demands the existence of an exactly extremal brane. Similar tensions exist in […]

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 discrepant with the value predicted from the ΛCDM model when fit to CMB data. After a brief review of the experimental situation, I will show […]

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 field theory (CFT) thus defined, Belavin-Polyakov-Zamolodchikov designed in 1984 a general method for solving such a theory, dubbed conformal bootstrap. However there is a large […]

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

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

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

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 […]

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. […]