Электронный каталог

Статья

Abreu, H.
Search for Dark Photons with the FASER Detector at the LHC / H.Abreu, S.Dmitrievsky, Y.Gornushkin, S.Vasina, [FASER Collab.] // Physics Letters B [Electronic resource]. – 2024. – Vol. 848. – P. 138378. – URL: https://doi.org/10.1016/j.physletb.2023.138378. – Bibliogr.: 58.

The FASER experiment at the LHC is designed to search for light, weakly-interacting particles produced in proton- proton collisions at the ATLAS interaction point that travel in the far-forward direction. The first results from a search for dark photons decaying to an electron-positron pair, using a dataset corresponding to an integrated luminosity of 27.0 fb*−*1 collected at centre-of-mass energy *%𝑠 = 13.6 TeV in 2022 in LHC Run 3, are presented. No events are seen in an almost background-free analysis, yielding world-leading constraints on dark photons with couplings *e ∼ 2 × 10*−*5 − 1 × 10*−*4 and masses ∼ 17 MeV − 70 MeV. The analysis is also used to probe the parameter space of a massive gauge boson from a U(1)&sub(𝐵−𝐿) model, with couplings 𝑔&sub(𝐵−𝐿) ∼ 5 × 10*−*6 − 2 × 10*−*5 andmasses ∼ 15 MeV − 40 MeV excluded for the first time.



Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
ОИЯИ = ОИЯИ (JINR)2024