Search for the X(5568) State Decaying into B0sπ± in Proton-Proton Collisions at √s = 8  TeV
Physical Review Letters 2018
Viesturs Veckalns, CERN international group of authors

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±.


DOI
10.1103/PhysRevLett.120.202005
Hipersaite
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.202005

Veckalns, V., international group of authors, C. Search for the X(5568) State Decaying into B0sπ± in Proton-Proton Collisions at √s = 8  TeV. Physical Review Letters, 2018, Vol.120, No.20, 1.-10.lpp. ISSN 0031-9007. e-ISSN 1079-7114. Pieejams: doi:10.1103/PhysRevLett.120.202005

Publikācijas valoda
English (en)
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