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Search for the X(5568) State Decaying into B0sπ± in Proton-Proton Collisions at √s=8  TeV

Search for the X(5568) State Decaying into B0sπ± in Proton-Proton Collisions at √s=8  TeV
Search for the X(5568) State Decaying into B0sπ± in Proton-Proton Collisions at √s=8  TeV
A search for resonancelike structures in the B0sπ± 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 B0s mesons are reconstructed in the decay chain B0s→J/ψϕ, with J/ψ→μ+μ− and ϕ→K+K−. The B0sπ± invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed B0s and π± candidates. Upper limits are set on the relative production rates of the X(5568) and B0s states times the branching fraction of the decay X(5568)±→B0sπ±. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into B0sπ±.
1079-7114
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Belyaev, Alexander , The CMS Collaboration (2018) Search for the X(5568) State Decaying into B0sπ± in Proton-Proton Collisions at √s=8  TeV. Physical Review Letters. (doi:10.1103/PhysRevLett.120.202005).

Record type: Article

Abstract

A search for resonancelike structures in the B0sπ± 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 B0s mesons are reconstructed in the decay chain B0s→J/ψϕ, with J/ψ→μ+μ− and ϕ→K+K−. The B0sπ± invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed B0s and π± candidates. Upper limits are set on the relative production rates of the X(5568) and B0s states times the branching fraction of the decay X(5568)±→B0sπ±. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into B0sπ±.

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e-pub ahead of print date: 18 May 2018
Published date: 18 May 2018

Identifiers

Local EPrints ID: 421562
URI: https://eprints.soton.ac.uk/id/eprint/421562
ISSN: 1079-7114
PURE UUID: 78228921-5ef1-4666-9809-6efd51a7c81d
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 15 Jun 2018 16:30
Last modified: 15 Mar 2019 01:33

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