Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at √s=13 TeV using the ATLAS detector

Aad G.; Abbott B.; Abbott D.C.; Abeling K.; Abidi S.H.; Aboulhorma A.; Abramowicz H.; Abreu H.; Abulaiti Y.; Abusleme Hoffman A.C.; Acharya B.S.; Achkar B.; Adam L.; Adam Bourdarios C.; Adamczyk L.; et. al.

Abstract

A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2015–2018 at s=13 TeV from pp collisions corresponding to an integrated luminosity of 139 fb−1 are examined. Particles producing anomalously high ionization, consistent with long-lived spin-½ massive particles with electric charges from |q|=2e to |q|=7e are searched for. No statistically significant evidence of such particles is observed, and 95% confidence level cross-section upper limits are calculated and interpreted as the lower mass limits for a Drell–Yan plus photon-fusion production mode. The least stringent limit, 1060 GeV, is obtained for |q|=2e particles, and the most stringent one, 1600 GeV, is for |q|=6e particles.

Más información

Título según WOS: Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at √s=13 TeV using the ATLAS detector
Título según SCOPUS: Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at s=13 TeV using the ATLAS detector
Título de la Revista: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen: 847
Editorial: Elsevier B.V.
Fecha de publicación: 2023
Idioma: English
DOI:

10.1016/j.physletb.2023.138316

Notas: ISI, SCOPUS