Search for nearly mass-degenerate Higgsinos using low-momentum mildly displaced tracks in pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1103/PhysRevLett.132.221801

Search for nearly mass-degenerate Higgsinos using low-momentum mildly displaced tracks in pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration

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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 O(1 GeV). 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 140 fb^-1 of proton-proton collision data at √s = 13 TeV 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.

Original language	English
Article number	221801
Pages (from-to)	221801-1-221801-24
Number of pages	24
Journal	Physical Review Letters
Volume	132
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.132.221801
Publication status	Published - 31 May 2024
Externally published	Yes

Bibliographical note

Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Access to Document

10.1103/PhysRevLett.132.221801Licence: CC BY

Publisher version (open access)Final published version, 48 MBLicence: CC BY

Cite this

@article{19ae1227cef54b2ba79286e8a7a57f89,

title = "Search for nearly mass-degenerate Higgsinos using low-momentum mildly displaced tracks in pp collisions at √s = 13 TeV 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 O(1 GeV). 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 140 fb-1 of proton-proton collision data at √s = 13 TeV 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 J. Metcalfe and Mete, \{A. S.\} and A. Paramonov and J. Proudfoot and \{Van Gemmeren\}, P. and T. Wamorkar and R. Wang and J. Zhang and E. Cheu and Z. Cui and A. Ghosh and Johns, \{K. A.\} and W. Lampl and Lindley, \{R. E.\} and P. Loch and Rutherfoord, \{J. P.\} and J. Sardain and Varnes, \{E. W.\} and H. Zhou and Y. Zhou and \{Bakshi Gupta\}, D. and B. Burghgrave and Cardenas, \{J. C.J.\} and K. De and A. Farbin and Hadavand, \{H. K.\} and Myers, \{A. J.\} and N. Ozturk and G. Usai and A. White and S. Angelidakis and D. Fassouliotis and L. Fountas and I. Gkialas and C. Kourkoumelis and T. Alexopoulos and I. Drivas-Koulouris and Gazis, \{E. N.\} and C. Kitsaki and S. Maltezos and M. Perganti and T. Andeen and Burton, \{C. D.\} and K. Choi and Onyisi, \{P. U.E.\} and Panchal, \{D. K.\} and M. Tost and C. Wang and N. Huseynov and Agaras, \{M. N.\} and \{Berrocal Guardia\}, A. and M. Bosman and Carlotto, \{J. I.\} and Casado, \{M. P.\} and \{Castillo Garcia\}, L. and S. Epari and \{Fernandez Martinez\}, P. and V. Gautam and S. Grinstein and J. Harrison and \{Jimenez Pena\}, J. and \{Juste Rozas\}, A. and I. Korolkov and J. Mamuzic and M. Martinez and \{Martinez Suarez\}, P. and Mir, \{L. M.\} and \{Montejo Berlingen\}, J. and \{Oliveira Correa\}, G. and N. Orlando and \{Pacheco Pages\}, A. and \{Padilla Aranda\}, C. and Y. Qin and I. Riu and A. Sonay and S. Terzo and \{Barreiro Guimar{\~a}es da Costa\}, J. and Y. Cai and X. Chu and H. Cui and Y. Fan and Y. Fang and F. Guo and M. He and X. Huang and Y. Huang and X. Jia and M. Li and S. Li and Z. Li and S. Liang and Z. Liang and B. Liu and P. Liu and X. Lou and G. Lu and Mohammed, \{A. F.\} and Q. Sha and Shan, \{L. Y.\} and X. Shi and K. Tariq and W. Wang and S. Xin and D. Xu and X. Yang and J. Ye and C. Yu and H. Zeng and M. Zhai and K. Zhang and P. Zhang and X. Zhuang and X. Chen and M. Feng and H. Li and H. Pang and M. Xia and Y. Xu and Y. Che and H. Chen and Chen, \{S. J.\} and \{De Maria\}, A. and L. Han and Z. Jia and S. Jin and \{Lucio Alves\}, \{F. L.\} and T. Min and X. Wang and Y. Wang and L. Xia and Z. Xu and H. Ye and L. Zhang and J. Zheng and Y. Liu and M. Wu and K. Ran and E. Bakos and Beemster, \{L. J.\} and J. Jovicevic and V. Maksimovic and Dj Sijacki and N. Vranjes and \{Vranjes Milosavljevic\}, M. and L. {\v Z}ivkovi{\'c} and E. Aakvaag and T. Buanes and G. Eigen and N. Fomin and S. Hassan and S. Hellesund and Huiberts, \{S. K.\} and A. Lipniacka and \{Martin dit Latour\}, B. and B. Stugu and A. Traeet and J. Beringer and P. Calafiura and F. Cerutti and J. Chan and A. Ciocio and Dyckes, \{G. I.\} and K. Einsweiler and I. Ene and Fortman, \{A. W.\} and Foti, \{M. G.\} and Gagnon, \{L. G.\} and M. Garcia-Sciveres and \{Gonzalez Renteria\}, C. and Gray, \{H. M.\} and C. Haber and S. Han and T. Heim and M. Hu and X. Ju and \{Le Pottier\}, \{L. T.\} and C. Leggett and Z. Marshall and M. Mironova and Nachman, \{B. P.\} and Ottino, \{G. J.\} and \{Pagan Griso\}, S. and M. Pettee and E. Pianori and A. Rastogi and E. Reynolds and Roberts, \{B. R.\} and M. Shapiro and B. Stanislaus and Thompson, \{E. A.\} and V. Tsulaia and Wagner, \{J. M.\} and H. Wang and J. Xiong and T. Yamazaki and Yao, \{W. M.\} and Z. Zhang and C. Varni and Yeo, \{B. K.\} and C. Appelt and J. Shojaii",

note = "Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2024",

month = may,

day = "31",

doi = "10.1103/PhysRevLett.132.221801",

language = "English",

volume = "132",

pages = "221801--1--221801--24",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

}

TY - JOUR

T1 - Search for nearly mass-degenerate Higgsinos using low-momentum mildly displaced tracks in pp collisions at √s = 13 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Filmer, E. K.

AU - Grant, C. M.

AU - Jackson, P.

AU - Kong, A. X.Y.

AU - Pandya, H. D.

AU - Potti, H.

AU - Ruggeri, T. A.

AU - Saha, S.

AU - Ting, E. X.L.

AU - White, M. J.

AU - Gingrich, D. M.

AU - Lindon, J. H.

AU - Nishu, N.

AU - Pinfold, J. L.

AU - Cakir, O.

AU - Canbay, A. C.

AU - Yildiz, H. Duran

AU - Kuday, S.

AU - Turk Cakir, I.

AU - Sultansoy, S.

AU - Adam Bourdarios, C.

AU - Arnaez, O.

AU - Berger, N.

AU - Brahimi, N.

AU - Castillo, F. L.

AU - Cavaliere, T.

AU - Costanza, F.

AU - Delmastro, M.

AU - Di Ciaccio, L.

AU - Hryn’ova, T.

AU - Koletsou, I.

AU - Levêque, J.

AU - Lewis, D. J.

AU - Little, J. D.

AU - Lorenzo Martinez, N.

AU - Sauvan, E.

AU - Wu, Z.

AU - Bernardi, G.

AU - Bomben, M.

AU - Li, A.

AU - Li, T.

AU - Marchiori, G.

AU - Nakkalil, K.

AU - Shen, Q.

AU - Zhang, Y.

AU - Chekanov, S.

AU - Hopkins, W. H.

AU - Hoya, J.

AU - Luongo, N. A.

AU - Metcalfe, J.

AU - Mete, A. S.

AU - Paramonov, A.

AU - Proudfoot, J.

AU - Van Gemmeren, P.

AU - Wamorkar, T.

AU - Wang, R.

AU - Zhang, J.

AU - Cheu, E.

AU - Cui, Z.

AU - Ghosh, A.

AU - Johns, K. A.

AU - Lampl, W.

AU - Lindley, R. E.

AU - Loch, P.

AU - Rutherfoord, J. P.

AU - Sardain, J.

AU - Varnes, E. W.

AU - Zhou, H.

AU - Zhou, Y.

AU - Bakshi Gupta, D.

AU - Burghgrave, B.

AU - Cardenas, J. C.J.

AU - De, K.

AU - Farbin, A.

AU - Hadavand, H. K.

AU - Myers, A. J.

AU - Ozturk, N.

AU - Usai, G.

AU - White, A.

AU - Angelidakis, S.

AU - Fassouliotis, D.

AU - Fountas, L.

AU - Gkialas, I.

AU - Kourkoumelis, C.

AU - Alexopoulos, T.

AU - Drivas-Koulouris, I.

AU - Gazis, E. N.

AU - Kitsaki, C.

AU - Maltezos, S.

AU - Perganti, M.

AU - Andeen, T.

AU - Burton, C. D.

AU - Choi, K.

AU - Onyisi, P. U.E.

AU - Panchal, D. K.

AU - Tost, M.

AU - Wang, C.

AU - Huseynov, N.

AU - Agaras, M. N.

AU - Berrocal Guardia, A.

AU - Bosman, M.

AU - Carlotto, J. I.

AU - Casado, M. P.

AU - Castillo Garcia, L.

AU - Epari, S.

AU - Fernandez Martinez, P.

AU - Gautam, V.

AU - Grinstein, S.

AU - Harrison, J.

AU - Jimenez Pena, J.

AU - Juste Rozas, A.

AU - Korolkov, I.

AU - Mamuzic, J.

AU - Martinez, M.

AU - Martinez Suarez, P.

AU - Mir, L. M.

AU - Montejo Berlingen, J.

AU - Oliveira Correa, G.

AU - Orlando, N.

AU - Pacheco Pages, A.

AU - Padilla Aranda, C.

AU - Qin, Y.

AU - Riu, I.

AU - Sonay, A.

AU - Terzo, S.

AU - Barreiro Guimarães da Costa, J.

AU - Cai, Y.

AU - Chu, X.

AU - Cui, H.

AU - Fan, Y.

AU - Fang, Y.

AU - Guo, F.

AU - He, M.

AU - Huang, X.

AU - Huang, Y.

AU - Jia, X.

AU - Li, M.

AU - Li, S.

AU - Li, Z.

AU - Liang, S.

AU - Liang, Z.

AU - Liu, B.

AU - Liu, P.

AU - Lou, X.

AU - Lu, G.

AU - Mohammed, A. F.

AU - Sha, Q.

AU - Shan, L. Y.

AU - Shi, X.

AU - Tariq, K.

AU - Wang, W.

AU - Xin, S.

AU - Xu, D.

AU - Yang, X.

AU - Ye, J.

AU - Yu, C.

AU - Zeng, H.

AU - Zhai, M.

AU - Zhang, K.

AU - Zhang, P.

AU - Zhuang, X.

AU - Chen, X.

AU - Feng, M.

AU - Li, H.

AU - Pang, H.

AU - Xia, M.

AU - Xu, Y.

AU - Che, Y.

AU - Chen, H.

AU - Chen, S. J.

AU - De Maria, A.

AU - Han, L.

AU - Jia, Z.

AU - Jin, S.

AU - Lucio Alves, F. L.

AU - Min, T.

AU - Wang, X.

AU - Wang, Y.

AU - Xia, L.

AU - Xu, Z.

AU - Ye, H.

AU - Zhang, L.

AU - Zheng, J.

AU - Liu, Y.

AU - Wu, M.

AU - Ran, K.

AU - Bakos, E.

AU - Beemster, L. J.

AU - Jovicevic, J.

AU - Maksimovic, V.

AU - Sijacki, Dj

AU - Vranjes, N.

AU - Vranjes Milosavljevic, M.

AU - Živković, L.

AU - Aakvaag, E.

AU - Buanes, T.

AU - Eigen, G.

AU - Fomin, N.

AU - Hassan, S.

AU - Hellesund, S.

AU - Huiberts, S. K.

AU - Lipniacka, A.

AU - Martin dit Latour, B.

AU - Stugu, B.

AU - Traeet, A.

AU - Beringer, J.

AU - Calafiura, P.

AU - Cerutti, F.

AU - Chan, J.

AU - Ciocio, A.

AU - Dyckes, G. I.

AU - Einsweiler, K.

AU - Ene, I.

AU - Fortman, A. W.

AU - Foti, M. G.

AU - Gagnon, L. G.

AU - Garcia-Sciveres, M.

AU - Gonzalez Renteria, C.

AU - Gray, H. M.

AU - Haber, C.

AU - Han, S.

AU - Heim, T.

AU - Hu, M.

AU - Ju, X.

AU - Le Pottier, L. T.

AU - Leggett, C.

AU - Marshall, Z.

AU - Mironova, M.

AU - Nachman, B. P.

AU - Ottino, G. J.

AU - Pagan Griso, S.

AU - Pettee, M.

AU - Pianori, E.

AU - Rastogi, A.

AU - Reynolds, E.

AU - Roberts, B. R.

AU - Shapiro, M.

AU - Stanislaus, B.

AU - Thompson, E. A.

AU - Tsulaia, V.

AU - Wagner, J. M.

AU - Wang, H.

AU - Xiong, J.

AU - Yamazaki, T.

AU - Yao, W. M.

AU - Zhang, Z.

AU - Varni, C.

AU - Yeo, B. K.

AU - Appelt, C.

AU - Shojaii, J.

N1 - Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2024/5/31

Y1 - 2024/5/31

N2 - 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 O(1 GeV). 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 140 fb-1 of proton-proton collision data at √s = 13 TeV 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.

AB - 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 O(1 GeV). 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 140 fb-1 of proton-proton collision data at √s = 13 TeV 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.

UR - https://www.scopus.com/pages/publications/85196807349

U2 - 10.1103/PhysRevLett.132.221801

DO - 10.1103/PhysRevLett.132.221801

M3 - Article

C2 - 38877905

AN - SCOPUS:85196807349

SN - 0031-9007

VL - 132

SP - 221801-1-221801-24

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

M1 - 221801

ER -

Search for nearly mass-degenerate Higgsinos using low-momentum mildly displaced tracks in pp collisions at √s = 13 TeV with the ATLAS detector

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