Search for the X (5568) State Decaying into B[superscript 0][subscript s] π[superscript ±] in Proton-Proton Collisions at √ s = 8 TeV
Name
PhysRevLett.120.202005.pdf
Size
1005.16 KB
Format
Adobe PDF
Checksum (MD5)
0239d759317bb7ebca6acbdf448f7a3a
Author(s)
Sirunyan, A. M.
CMS Collaboration
Date Issued
May 2018
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Sirunyan, A. M., et al. “Search for the X (5568) State Decaying into B[superscript 0][subscript s] π[superscript ±] in Proton-Proton Collisions at √ s = 8 TeV.” Physical Review Letters, vol. 120, no. 20, May 2018. © 2018 CERN for the CMS Collaboration
Version
Final published version
Abstract
A search for resonancelike structures in the B[subscript s][superscript 0] π[superscript ±] 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[superscript -1]. The B[subscript s][superscript 0] mesons are reconstructed in the decay chain B[subscript s][superscript 0]→J/ψϕ, with J/ψ→μ[superscript +]μ[superscript -] and ϕ→K[superscript +]K[superscript -]. The B[subscript s][superscript 0]π[superscript ±] invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed B_{s}^{0} and π[superscript ±] candidates. Upper limits are set on the relative production rates of the X(5568) and B[subscript s][superscript 0] states times the branching fraction of the decay X(5568)[superscript ±]→B[subscript s][superscript 0]π[superscript ±]. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into B[subscript s][superscript 0]π[superscript ±].
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.120.202005
