Search for the X (5568) State Decaying into Bs0 π± in Proton-Proton Collisions at s =8 TeV

The CMS collaboration

Результат исследования: Научные публикации в периодических изданияхстатья

34 Цитирования (Scopus)

Аннотация

A search for resonancelike structures in the Bs0π± invariant mass spectrum is performed using proton-proton collision data collected by the CMS experiment at the LHC at s=8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The Bs0 mesons are reconstructed in the decay chain Bs0→J/ψφ, with J/ψ→μ+μ- and φ→K+K-. The Bs0π± invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed Bs0 and π± candidates. Upper limits are set on the relative production rates of the X(5568) and Bs0 states times the branching fraction of the decay X(5568)±→Bs0π±. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into Bs0π±.

Язык оригиналаанглийский
Номер статьи202005
Число страниц17
ЖурналPhysical Review Letters
Том120
Номер выпуска20
DOI
СостояниеОпубликовано - 18 мая 2018

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