Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at s=13.6TeV

A.SnigirevJr.The CMS Collaboration

doi:10.1016/j.physletb.2026.140498

Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at s=13.6TeV

A.SnigirevJr.The CMS Collaboration

Física

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
University of Antwerp
Vrije Universiteit Brussel
Ghent University
Université libre de Bruxelles
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Centro Brasileiro de Pesquisas Físicas
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Bulgarian Academy of Sciences
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Ruder Boskovic Institute
University of Cyprus
Charles University
Escuela Politécnica Nacional
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Al-Fayoum University
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University of Helsinki
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RWTH Aachen University
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Indian Institute of Science Education and Research Pune
Indian Institute of Technology Hyderabad
Isfahan University of Technology
Institute for Research for Fundamental Sciences
University College Dublin
National Institute for Nuclear Physics
University of Bari
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University of Bologna
University of Catania
University of Florence
University of Genoa
University of Milan - Bicocca
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Research output: Contribution to journal › Article › peer-review

Abstract

A search for heavy long-lived charged particles at the LHC is presented. Particles traversing the CMS muon detector across several bunch crossings are searched for using a data sample of proton-proton collisions at s=13.6TeV collected with the CMS detector in 2024, corresponding to an integrated luminosity of 3.7 fb⁻¹. This is the first search using the novel level-1 trigger scouting data set collected without any trigger selection, allowing correlations between bunch crossings to be analyzed. The results are interpreted as upper limits on the cross sections of several benchmark processes with pair production of heavy long-lived charged particles. Upper limits on the fiducial cross section of a heavy long-lived charged particle with p_T>500GeV and | η | < 0.83 are also set in different ranges of β=v/c. This analysis is a proof of concept for the level-1 trigger data scouting system and complements existing searches for heavy long-lived charged particles by extending the sensitivity to lower β values.

Original language	English
Article number	140498
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	878
DOIs	https://doi.org/10.1016/j.physletb.2026.140498
State	Published - Jul 2026

Keywords

CMS
Data scouting
HSCP
Level-1 trigger
Long-lived

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10.1016/j.physletb.2026.140498

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@article{9597fe1569d2412684dd475f5b6210d8,

title = "Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at s=13.6TeV",

abstract = "A search for heavy long-lived charged particles at the LHC is presented. Particles traversing the CMS muon detector across several bunch crossings are searched for using a data sample of proton-proton collisions at s=13.6TeV collected with the CMS detector in 2024, corresponding to an integrated luminosity of 3.7 fb−1. This is the first search using the novel level-1 trigger scouting data set collected without any trigger selection, allowing correlations between bunch crossings to be analyzed. The results are interpreted as upper limits on the cross sections of several benchmark processes with pair production of heavy long-lived charged particles. Upper limits on the fiducial cross section of a heavy long-lived charged particle with pT>500GeV and | η | < 0.83 are also set in different ranges of β=v/c. This analysis is a proof of concept for the level-1 trigger data scouting system and complements existing searches for heavy long-lived charged particles by extending the sensitivity to lower β values.",

keywords = "CMS, Data scouting, HSCP, Level-1 trigger, Long-lived",

author = "\{A.SnigirevJr.The CMS Collaboration\} and A. Hayrapetyan and V. Makarenko and A. Tumasyan and W. Adam and L. Benato and T. Bergauer and M. Dragicevic and Hussain, \{P. S.\} and M. Jeitler and N. Krammer and A. Li and D. Liko and M. Matthewman and J. Schieck and R. Sch{\"o}fbeck and M. Shooshtari and M. Sonawane and W. Waltenberger and Wulz, \{C. E.\} and T. Janssen and H. Kwon and \{Ocampo Henao\}, D. and \{Van Laer\}, T. and \{Van Mechelen\}, P. and J. Bierkens and N. Breugelmans and J. D{\textquoteright}Hondt and S. Dansana and \{De Moor\}, A. and M. Delcourt and F. Heyen and Y. Hong and P. Kashko and S. Lowette and I. Makarenko and D. M{\"u}ller and S. Tavernier and M. Tytgat and \{Van Onsem\}, \{G. P.\} and \{Van Putte\}, S. and D. Vannerom and B. Bilin and B. Clerbaux and Das, \{A. K.\} and \{De Bruyn\}, I. and \{De Lentdecker\}, G. and H. Evard and L. Favart and P. Gianneios and \{Carrera Jarrin\}, E.",

note = "Publisher Copyright: {\textcopyright} 2026 The Authors.",

year = "2026",

month = jul,

doi = "10.1016/j.physletb.2026.140498",

language = "Ingl{\'e}s",

volume = "878",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at s=13.6TeV

AU - A.SnigirevJr.The CMS Collaboration

AU - Hayrapetyan, A.

AU - Makarenko, V.

AU - Tumasyan, A.

AU - Adam, W.

AU - Benato, L.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Hussain, P. S.

AU - Jeitler, M.

AU - Krammer, N.

AU - Li, A.

AU - Liko, D.

AU - Matthewman, M.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Shooshtari, M.

AU - Sonawane, M.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Janssen, T.

AU - Kwon, H.

AU - Ocampo Henao, D.

AU - Van Laer, T.

AU - Van Mechelen, P.

AU - Bierkens, J.

AU - Breugelmans, N.

AU - D’Hondt, J.

AU - Dansana, S.

AU - De Moor, A.

AU - Delcourt, M.

AU - Heyen, F.

AU - Hong, Y.

AU - Kashko, P.

AU - Lowette, S.

AU - Makarenko, I.

AU - Müller, D.

AU - Tavernier, S.

AU - Tytgat, M.

AU - Van Onsem, G. P.

AU - Van Putte, S.

AU - Vannerom, D.

AU - Bilin, B.

AU - Clerbaux, B.

AU - Das, A. K.

AU - De Bruyn, I.

AU - De Lentdecker, G.

AU - Evard, H.

AU - Favart, L.

AU - Gianneios, P.

AU - Carrera Jarrin, E.

PY - 2026/7

Y1 - 2026/7

N2 - A search for heavy long-lived charged particles at the LHC is presented. Particles traversing the CMS muon detector across several bunch crossings are searched for using a data sample of proton-proton collisions at s=13.6TeV collected with the CMS detector in 2024, corresponding to an integrated luminosity of 3.7 fb−1. This is the first search using the novel level-1 trigger scouting data set collected without any trigger selection, allowing correlations between bunch crossings to be analyzed. The results are interpreted as upper limits on the cross sections of several benchmark processes with pair production of heavy long-lived charged particles. Upper limits on the fiducial cross section of a heavy long-lived charged particle with pT>500GeV and | η | < 0.83 are also set in different ranges of β=v/c. This analysis is a proof of concept for the level-1 trigger data scouting system and complements existing searches for heavy long-lived charged particles by extending the sensitivity to lower β values.

AB - A search for heavy long-lived charged particles at the LHC is presented. Particles traversing the CMS muon detector across several bunch crossings are searched for using a data sample of proton-proton collisions at s=13.6TeV collected with the CMS detector in 2024, corresponding to an integrated luminosity of 3.7 fb−1. This is the first search using the novel level-1 trigger scouting data set collected without any trigger selection, allowing correlations between bunch crossings to be analyzed. The results are interpreted as upper limits on the cross sections of several benchmark processes with pair production of heavy long-lived charged particles. Upper limits on the fiducial cross section of a heavy long-lived charged particle with pT>500GeV and | η | < 0.83 are also set in different ranges of β=v/c. This analysis is a proof of concept for the level-1 trigger data scouting system and complements existing searches for heavy long-lived charged particles by extending the sensitivity to lower β values.

KW - CMS

KW - Data scouting

KW - HSCP

KW - Level-1 trigger

KW - Long-lived

UR - https://www.scopus.com/pages/publications/105040957389

U2 - 10.1016/j.physletb.2026.140498

DO - 10.1016/j.physletb.2026.140498

M3 - Artículo

AN - SCOPUS:105040957389

SN - 0370-2693

VL - 878

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 140498

ER -

Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at s=13.6TeV

Abstract

Keywords

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