Search for nearly mass-degenerate higgsinos using low-momentum mildly displaced tracks in pp collisions at formula presented with the ATLAS detector
Yükleniyor...
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American physical society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Kaynak
Physical review letters
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
132
Sayı
22
Künye
Aad, G., Aakvaag, E., Abbott, B., Abeling, K., Abicht, N. J., Abidi, S. H., ... & Baines, J. T. (2024). Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at s= 13 TeV with the ATLAS Detector. Physical review letters, 132(2401.14046).
