Studies of B*[subscript 2](5840)[superscript 0] and B[subscript s1](5830)[superscript 0] mesons including the observation of the B*[subscript 2](5840)[superscript 0] → B[superscript 0]K[subscript S][superscript 0] decay in proton-proton collisions at √s = 8 TeV
Name
Sirunyan2018_Article_StudiesOfMathrmBMathrmS258400B.pdf
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953.11 KB
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Checksum (MD5)
6dbb44cba4ad2dee737297a969f21952
Author(s)
CMS Collaboration
Date Issued
November 2018
Journal
European Physical Journal C
Publisher
Springer
Citation
Sirunyan, A. M. et al. “Studies of B*[subscript 2](5840)[superscript 0] and B[subscript s1](5830)[superscript 0] mesons including the observation of the B*[subscript 2](5840)[superscript 0] → B[superscript 0]K[subscript S][superscript 0] decay in proton-proton collisions at √s = 8 TeV.” The European Physical Journal C 78, 11 (November 2018): 939 © 2018 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
Measurements of B*[subscript 2](5840)[superscript 0] and B[subscript s1](5830)[superscript 0] mesons are performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of [equation not available: see text], collected with the CMS detector at the LHC at a centre-of-mass energy of 8TeV. The analysis studies P-wave Bs0 meson decays into B[superscript (∗)+]K[superscript -] and B[superscript 0]K[subscript S][superscript 0], where the B[superscript +] and B[superscript 0] mesons are identified using the decays B[superscript +] → J / ψK[superscript +] and B[superscripts 0] → J / ψK*(892)[superscript 0]. The masses of the P-wave Bs0 meson states are measured and the natural width of the Bs2∗(5840)0 state is determined. The first measurement of the mass difference between the charged and neutral B ∗ mesons is also presented. The B*[subscript 2](5840)[superscript 0] decay to B[superscript 0]K[subscript S][superscript 0] is observed, together with a measurement of its branching fraction relative to the B*[subscript 2](5840)[superscript 0]→B[superscript +]K[superscript -]decay.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-018-6390-z
