Primordial black holes (PBHs), possibly formed via gravitational collapse of large density perturbations in the very early universe, are one of the earliest proposed and viable dark matter (DM) candidates. PBHs can make up a large or even entirety of DM over a wide range of masses. Ultralight PBHs in the mass range of 10^{15} […]
https://arxiv.org/pdf/2007.00082.pdf https://arxiv.org/pdf/2012.03950.pdf Please note the unusal time!
This is a meeting on topics related to string and field theory, between members of nearby institutions: IP2I (CNRS, UCBL), Lyon LAPTh (CNRS, USMB), Annecy LPENSL (CNRS, ENSL), Lyon More information can be found on the AnLy webpage. For this first edition, the meeting will take place in LAPTh, Annecy, on the 16/11/21. Travel […]
NEWS FROM THE DARK LAPTh, Annecy - November 22-24, 2021 Episode 6 For more information click Here
Participation to the event is by invitation only. If you would like to participate or contribute in some way, please contact serpico _at_ lapth.cnrs.fr. Unless LAPTh administration takes care of […]
https://arxiv.org/abs/2106.12582 https://indico.in2p3.fr/event/25013/contributions/101345/
L'organisation du Système Solaire et la description des mouvements qui le caractérisent ont constitué le cœur de l'astronomie pendant de siècles depuis l'antiquité. Cette science appelée Mécanique Céleste qui repose […]
Abstract: We review recent advances in the calculation of the two-loop Feynman integrals which contribute to five-particle scattering amplitudes with one massive leg. These amplitudes are required to provide theoretical […]
As the LHC accumulates data, the need grows for more efficient methods to compute scattering amplitudes. One such method manages to swap the difficult problem of integrating thousands of Feynman […]
We will present a new approach to the problem of quantising integrable systems of differential-difference equations. The main idea is to lift these systems to systems defined on free associative […]
Abstract: A new approach to dark matter from the mass-radius diagram of the Universe (arxiv.org) Zoom link: https://cnrs.zoom.us/j/91049381574?pwd=TDZyU3NqT0k4MFk3cUMvc0JuOURCdz09
