Study of the decay Bs0→J/ψf2′(1525) in μ +μ -K +K - final states
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
26/11/2012
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Resumo |
We investigate the decay Bs0→J/ψK +K - for invariant masses of the K +K - pair in the range 1.35<M(K +K -)<2GeV. The data sample corresponds to an integrated luminosity of 10.4fb -1 of pp̄ collisions at √s=1.96TeV accumulated with the D0 detector at the Fermilab Tevatron collider. From the study of the invariant mass and spin of the K +K - system, we find evidence for the two-body decay Bs0→J/ψf2′(1525) and measure the relative branching fraction of the decays Bs0→J/ψf2′(1525) and Bs0→J/ψ to be R f2′/=0.19±0.05(stat)±0.04(syst). © 2012 American Physical Society. |
Identificador |
http://dx.doi.org/10.1103/PhysRevD.86.092011 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 86, n. 9, 2012. 1550-7998 1550-2368 http://hdl.handle.net/11449/73751 10.1103/PhysRevD.86.092011 2-s2.0-84870216988 2-s2.0-84870216988.pdf |
Idioma(s) |
eng |
Relação |
Physical Review D: Particles, Fields, Gravitation and Cosmology |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |