A search for the X(4140) state in B+ -> J/psi phi K+ decays is performed with 0.37 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4 sigma disagreement with a measurement by CDF. An upper limit on its production rate is set, B(B+ -> X(4140)K+) x B(X(4140) -> J/psi phi)/B(B+ -> J/psi phi K+) < 0.07 at 90% confidence level.

Aaij, R., Carboni, G., Messi, R., Santovetti, E., Ii, (2012). Search for the X(4140) state in B+ -> J/psi phi K+ decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(9) [10.1103/PhysRevD.85.091103].

Search for the X(4140) state in B+ -> J/psi phi K+ decays

CARBONI, GIOVANNI;MESSI, ROBERTO;SANTOVETTI, EMANUELE;
2012-01-01

Abstract

A search for the X(4140) state in B+ -> J/psi phi K+ decays is performed with 0.37 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4 sigma disagreement with a measurement by CDF. An upper limit on its production rate is set, B(B+ -> X(4140)K+) x B(X(4140) -> J/psi phi)/B(B+ -> J/psi phi K+) < 0.07 at 90% confidence level.
2012
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - Fisica Nucleare e Subnucleare
English
Aaij, R., Carboni, G., Messi, R., Santovetti, E., Ii, (2012). Search for the X(4140) state in B+ -> J/psi phi K+ decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(9) [10.1103/PhysRevD.85.091103].
Aaij, R; Carboni, G; Messi, R; Santovetti, E; Ii,
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/135415
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