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Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV.

Publication ,  Journal Article
Hayrapetyan, A; Makarenko, V; Tumasyan, A; Adam, W; Andrejkovic, JW; Benato, L; Bergauer, T; Damanakis, K; Dragicevic, M; Giordano, C; Li, A ...
Published in: Phys Rev Lett
August 29, 2025

A measurement is presented of the cross section in proton-proton collisions for the production of two W bosons and one Z boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies sqrt[s]=13 and 13.6 TeV, corresponding to an integrated luminosity of 200  fb^{-1}. Events with four charged leptons (electrons or muons) in the final state are selected. Both nonresonant WWZ production and ZH production, with the Higgs boson decaying into two W bosons, are reported. For the first time, the two processes are measured separately in a simultaneous fit. Combining the two modes, signal strengths relative to the standard model (SM) predictions of 0.75_{-0.29}^{+0.34} and 1.74_{-0.60}^{+0.71} are measured for sqrt[s]=13 and 13.6 TeV, respectively. The observed (expected) significance for the triboson signal is 3.8 (2.5) standard deviations for sqrt[s]=13.6  TeV, thus providing the first evidence for triboson production at this center-of-mass energy. Combining the two modes and the two center-of-mass energies, the inclusive signal strength relative to the SM prediction is measured to be 1.03_{-0.28}^{+0.31}, with an observed (expected) significance of 4.5 (5.0) standard deviations.

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Published In

Phys Rev Lett

DOI

EISSN

1079-7114

Publication Date

August 29, 2025

Volume

135

Issue

9

Start / End Page

091802

Location

United States

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Andrejkovic, J. W., Benato, L., … El Morabit, K. (2025). Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV. Phys Rev Lett, 135(9), 091802. https://doi.org/10.1103/6z3d-zjw4
Hayrapetyan, A., V. Makarenko, A. Tumasyan, W. Adam, J. W. Andrejkovic, L. Benato, T. Bergauer, et al. “Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV.Phys Rev Lett 135, no. 9 (August 29, 2025): 091802. https://doi.org/10.1103/6z3d-zjw4.
Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, et al. Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV. Phys Rev Lett. 2025 Aug 29;135(9):091802.
Hayrapetyan, A., et al. “Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV.Phys Rev Lett, vol. 135, no. 9, Aug. 2025, p. 091802. Pubmed, doi:10.1103/6z3d-zjw4.
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Gonzalez H, Behnke O, Belvedere A, Blekman F, Borras K, Campbell A, Chatterjee S, Coll Saravia LX, Eckerlin G, Eckstein D, Gallo E, Geiser A, Guglielmi V, Guthoff M, Hinzmann A, Jeppe L, Kasemann M, Kleinwort C, Kogler R, Komm M, Krücker D, Lange W, Leyva Pernia D, Lin K-Y, Lipka K, Lohmann W, Malvaso J, Mankel R, Melzer-Pellmann I-A, Mendizabal Morentin M, Meyer AB, Milella G, Moral Figueroa K, Mussgiller A, Nair LP, Niedziela J, Nürnberg A, Park J, Ranken E, Raspereza A, Rastorguev D, Rygaard L, Scham M, Schnake S, Schütze P, Schwanenberger C, Selivanova D, Sharko K, Shchedrolosiev M, Stafford D, Torkian M, Vazzoler F, Ventura Barroso A, Walsh R, Wang Q, Wichmann K, Wiens L, Wissing C, Yang Y, Zakharov S, Zimermmane Castro Santos A, Albrecht A, Alves Andrade AR, Antonello M, Bollweg S, Bonanomi M, El Morabit K. Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV. Phys Rev Lett. 2025 Aug 29;135(9):091802.

Published In

Phys Rev Lett

DOI

EISSN

1079-7114

Publication Date

August 29, 2025

Volume

135

Issue

9

Start / End Page

091802

Location

United States

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences