Search for the X (5568) state decaying into Bs0 π± in proton-proton collisions at s =8 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for the X (5568) state decaying into Bs0 π± in proton-proton collisions at s =8 TeV. Physical Review Letters, 120 (20). 202005-1-202005-17. ISSN 0031-9007 E-ISSN 1079-7114

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Abstract

A search for resonancelike structures in the B0 sπ invariant mass spectrum is performed using protonproton collision data collected by the CMS experiment at the LHC at ffiffi s p ¼ 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The B0 s mesons are reconstructed in the decay chain B0 s → J=ψϕ, with J=ψ → μþμ− and ϕ → KþK−. The B0 sπ invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed B0 s and π candidates. Upper limits are set on the relative production rates of the Xð5568Þ and B0 s states times the branching fraction of the decay Xð5568Þ → B0 sπ. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into B0 sπ.

Item Type:	Article (Journal)
Additional Information:	7861/66772
Uncontrolled Keywords:	State Decaying ; B0 sπ in Proton-Proton Collisions; ffiffi s p = 8 TeV
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	10 Oct 2018 16:50
Last Modified:	10 Oct 2018 16:50
URI:	http://irep.iium.edu.my/id/eprint/66772

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