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Measurement of WWZ and ZH Production Cross Sections at √s = 13 and 13.6 TeVстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 октября 2025 г.
- Авторы: Boos E., Bunichev V., Dubinin M., Dudko L., Ershov A.A., Gribushin A., Klyukhin V., Kodolova O., Petrushanko S., Savrin V., Snigirev A., CMS Collaboration
- Журнал: Physical Review Letters
- Том: 135
- Номер: 9
- Год издания: 2025
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 091802
- DOI: 10.1103/6z3d-zjw4
- Аннотация: A measurement is presented of the cross section in proton-proton collisions for the production of two Wbosons and one Z boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies √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 WWZproduction and ZH production, with the Higgs boson decaying into two W bosons, are reported. For thefirst 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+0.34−0.29 and 1.74+0.71−0.60 are measured for √s = 13 and 13.6 TeV, respectively. The observed (expected) significance for the triboson signal is 3.8 (2.5) standard deviations for √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+0.31−0.28 , with an observed (expected) significance of 4.5 (5.0) standard deviations.
- Добавил в систему: Клюхин Вячеслав Иванович
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