Search for W Boson Decays to Three Charged Pions

CMS Collaboration

Результат исследований: Материалы для журналаСтатья

Аннотация

For the first time, a search for the rare decay of the W boson to three charged pions has been performed. Proton-proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 77.3 fb-1, have been analyzed. No significant excess is observed above the background expectation. An upper limit of 1.01×10-6 is set at 95% confidence level on the branching fraction of the W boson to three charged pions. This provides a strong motivation for theoretical calculations of this branching fraction.

Язык оригиналаАнглийский
Номер статьи151802
ЖурналPhysical Review Letters
Том122
Номер выпуска15
DOI
СостояниеОпубликовано - 18 апр 2019

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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