@article{f4b80eb604ec49dc9b4992603b63bebf,
title = "Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at Formula Presented with the ATLAS Detector",
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.",
author = "{ATLAS Collaboration} and Filmer, {E. K.} and Grant, {C. M.} and P. Jackson and Kong, {A. X.Y.} and Pandya, {H. D.} and H. Potti and Ruggeri, {T. A.} and S. Saha and Ting, {E. X.L.} and White, {M. J.} and Gingrich, {D. M.} and Lindon, {J. H.} and N. Nishu and Pinfold, {J. L.} and O. Cakir and Canbay, {A. C.} and Yildiz, {H. Duran} and S. Kuday and {Turk Cakir}, I. and S. Sultansoy and {Adam Bourdarios}, C. and O. Arnaez and N. Berger and N. Brahimi and Castillo, {F. L.} and T. Cavaliere and F. Costanza and M. Delmastro and {Di Ciaccio}, L. and T. Hryn{\textquoteright}ova and I. Koletsou and J. Lev{\^e}que and Lewis, {D. J.} and Little, {J. D.} and {Lorenzo Martinez}, N. and E. Sauvan and Z. Wu and G. Bernardi and M. Bomben and A. Li and T. Li and G. Marchiori and K. Nakkalil and Q. Shen and Y. Zhang and S. Chekanov and Hopkins, {W. H.} and J. Hoya and Luongo, {N. A.} and N. Govender",
note = "Publisher Copyright: {\textcopyright} 2024 CERN, for the ATLAS Collaboration.",
year = "2024",
month = may,
day = "31",
doi = "10.1103/PhysRevLett.132.221801",
language = "English",
volume = "132",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "22",
}