Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV

the CMS Collaboration; A Hayrapetyan; A. Tumasyan; David B Anthony; Jim Brooke; Aaron Bundock; Florian J J Bury; Emyr J Clement; David G Cussans; H. Flächer; Maciej Glowacki; Joel Goldstein; Helen F Heath; Mei-Li Holmberg; Lukasz Kreczko; Sudarshan Paramesvaran; Liam Robertshaw; Vincent J Smith; Katie L M R Walkingshaw Pass; et al

doi:10.1007/JHEP12(2025)052

Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV

the CMS Collaboration, A Hayrapetyan, A. Tumasyan, David B Anthony, Jim Brooke, Aaron Bundock, Florian J J Bury, Emyr J Clement, David G Cussans, H. Flächer, Maciej Glowacki, Joel Goldstein, Helen F Heath, Mei-Li Holmberg, Lukasz Kreczko, Sudarshan Paramesvaran, Liam Robertshaw, Vincent J Smith, Katie L M R Walkingshaw Pass, et al

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

A search for t-channel exchange of leptoquarks (LQs) is performed in dimuon and dielectron spectra using proton-proton collision data collected at √s = 13 TeV with the CMS detector at the CERN LHC. The data correspond to an integrated luminosity of 138 fb⁻¹. Eight scenarios are considered, in which up or down quarks couple to muons or electrons via a scalar or vector LQ exchange, for dilepton invariant masses above 500 GeV. The LQ masses are probed up to 5 TeV, beyond a regime probed by previous pair-production and single-production searches. The differential distributions of dilepton events are fit to templates that model the nonresonant LQ exchange and various standard model background processes. Limits are set on LQ-fermion coupling strengths for scalar and vector LQ masses in the 1–5 TeV range at 95% confidence level, establishing stringent limits on first- and second-generation LQs.

Original language	English
Article number	52
Number of pages	49
Journal	Journal of High Energy Physics
DOIs	https://doi.org/10.1007/JHEP12(2025)052
Publication status	Published - 9 Dec 2025

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the CMS Collaboration, Hayrapetyan, A., Tumasyan, A., Anthony, D. B., Brooke, J., Bundock, A., Bury, F. J. J., Clement, E. J., Cussans, D. G., Flächer, H., Glowacki, M., Goldstein, J., Heath, H. F., Holmberg, M.-L., Kreczko, L., Paramesvaran, S., Robertshaw, L., Smith, V. J., Walkingshaw Pass, K. L. M. R., & al , E. (2025). Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, Article 52. https://doi.org/10.1007/JHEP12(2025)052

@article{cf5d5dc3da1d47b3bcc280cf3abd8920,

title = "Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV",

abstract = "A search for t-channel exchange of leptoquarks (LQs) is performed in dimuon and dielectron spectra using proton-proton collision data collected at √s = 13 TeV with the CMS detector at the CERN LHC. The data correspond to an integrated luminosity of 138 fb−1. Eight scenarios are considered, in which up or down quarks couple to muons or electrons via a scalar or vector LQ exchange, for dilepton invariant masses above 500 GeV. The LQ masses are probed up to 5 TeV, beyond a regime probed by previous pair-production and single-production searches. The differential distributions of dilepton events are fit to templates that model the nonresonant LQ exchange and various standard model background processes. Limits are set on LQ-fermion coupling strengths for scalar and vector LQ masses in the 1–5 TeV range at 95\% confidence level, establishing stringent limits on first- and second-generation LQs.",

author = "\{the CMS Collaboration\} and A Hayrapetyan and A. Tumasyan and Anthony, \{David B\} and Jim Brooke and Aaron Bundock and Bury, \{Florian J J\} and Clement, \{Emyr J\} and Cussans, \{David G\} and H. Fl{\"a}cher and Maciej Glowacki and Joel Goldstein and Heath, \{Helen F\} and Mei-Li Holmberg and Lukasz Kreczko and Sudarshan Paramesvaran and Liam Robertshaw and Smith, \{Vincent J\} and \{Walkingshaw Pass\}, \{Katie L M R\} and et al",

note = "Publisher Copyright: Copyright CERN, for the benefit of the CMS Collaboration.",

year = "2025",

month = dec,

day = "9",

doi = "10.1007/JHEP12(2025)052",

language = "English",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

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the CMS Collaboration, Hayrapetyan, A, Tumasyan, A, Anthony, DB, Brooke, J , Bundock, A , Bury, FJJ , Clement, EJ , Cussans, DG , Flächer, H, Glowacki, M, Goldstein, J, Heath, HF, Holmberg, M-L , Kreczko, L , Paramesvaran, S , Robertshaw, L, Smith, VJ, Walkingshaw Pass, KLMR & al , E 2025, 'Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV', Journal of High Energy Physics. https://doi.org/10.1007/JHEP12(2025)052

TY - JOUR

T1 - Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV

AU - the CMS Collaboration

AU - Hayrapetyan, A

AU - Tumasyan, A.

AU - Anthony, David B

AU - Brooke, Jim

AU - Bundock, Aaron

AU - Bury, Florian J J

AU - Clement, Emyr J

AU - Cussans, David G

AU - Flächer, H.

AU - Glowacki, Maciej

AU - Goldstein, Joel

AU - Heath, Helen F

AU - Holmberg, Mei-Li

AU - Kreczko, Lukasz

AU - Paramesvaran, Sudarshan

AU - Robertshaw, Liam

AU - Smith, Vincent J

AU - Walkingshaw Pass, Katie L M R

AU - al , et

N1 - Publisher Copyright: Copyright CERN, for the benefit of the CMS Collaboration.

PY - 2025/12/9

Y1 - 2025/12/9

N2 - A search for t-channel exchange of leptoquarks (LQs) is performed in dimuon and dielectron spectra using proton-proton collision data collected at √s = 13 TeV with the CMS detector at the CERN LHC. The data correspond to an integrated luminosity of 138 fb−1. Eight scenarios are considered, in which up or down quarks couple to muons or electrons via a scalar or vector LQ exchange, for dilepton invariant masses above 500 GeV. The LQ masses are probed up to 5 TeV, beyond a regime probed by previous pair-production and single-production searches. The differential distributions of dilepton events are fit to templates that model the nonresonant LQ exchange and various standard model background processes. Limits are set on LQ-fermion coupling strengths for scalar and vector LQ masses in the 1–5 TeV range at 95% confidence level, establishing stringent limits on first- and second-generation LQs.

AB - A search for t-channel exchange of leptoquarks (LQs) is performed in dimuon and dielectron spectra using proton-proton collision data collected at √s = 13 TeV with the CMS detector at the CERN LHC. The data correspond to an integrated luminosity of 138 fb−1. Eight scenarios are considered, in which up or down quarks couple to muons or electrons via a scalar or vector LQ exchange, for dilepton invariant masses above 500 GeV. The LQ masses are probed up to 5 TeV, beyond a regime probed by previous pair-production and single-production searches. The differential distributions of dilepton events are fit to templates that model the nonresonant LQ exchange and various standard model background processes. Limits are set on LQ-fermion coupling strengths for scalar and vector LQ masses in the 1–5 TeV range at 95% confidence level, establishing stringent limits on first- and second-generation LQs.

U2 - 10.1007/JHEP12(2025)052

DO - 10.1007/JHEP12(2025)052

M3 - Article (Academic Journal)

SN - 1029-8479

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

M1 - 52

ER -

Search for t-channel scalar and vector leptoquark exchange in the high-mass dimuon and dielectron spectra in proton-proton collisions at √s = 13 TeV

Abstract

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