Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at Formula Presented with the ATLAS Detector

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • University of Adelaide
  • Université Paris-Saclay
  • University of Alberta
  • TRIUMF
  • Ankara University
  • TOBB University of Economics and Technology
  • Laboratoire d'Annecy-le-Vieux de Physique des Particules LAPP

Abstract

Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is Formula Presented. This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using Formula Presented of proton-proton collision data at Formula Presented collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 to 0.9 GeV is excluded at 95% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass.

Details

OriginalspracheEnglisch
Aufsatznummer221801
Seiten (von - bis)1-24
Seitenumfang24
FachzeitschriftPhysical review letters
Jahrgang132
Ausgabenummer22
PublikationsstatusVeröffentlicht - 30 Mai 2024
Peer-Review-StatusJa

Externe IDs

PubMed 38877905
ORCID /0000-0003-0546-1634/work/173516680

Schlagworte

ASJC Scopus Sachgebiete