Feebly-interacting particles: FIPs 2020 workshop report

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Abstract

With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and astrophysics community for explor- ing the physics of light and feebly-interacting particles as a paradigm complementary to a New Physics sector at the TeV scale and beyond. FIPs 2020 has been the first work- shop fully dedicated to the physics of feebly-interacting par- ticles and was held virtually from 31 August to 4 September 2020. The workshop has gathered together experts from col- lider, beam dump, fixed target experiments, as well as from astrophysics, axions/ALPs searches, current/future neutrino experiments, and dark matter direct detection communities to discuss progress in experimental searches and underlying theory models for FIPs physics, and to enhance the cross- fertilisation across different fields. FIPs 2020 has been com- plemented by the topical workshop “Physics Beyond Collid- ers meets theory”, held at CERN from 7 June to 9 June 2020. This document presents the summary of the talks presented at the workshops and the outcome of the subsequent discus- sions held immediately after. It aims to provide a clear picture of this blooming field and proposes a few recommendations for the next round of experimental results.
Original languageEnglish
Article number1015
Number of pages137
JournalEur. Phys. J. C
VolumeC81
Publication statusPublished - 19 Apr 2021

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