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Search for the X(4140) state in B +→J/ψφK + decays
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LHCb Collaboration (Including: Back, J. J., Dossett, D., Gershon, T. J., Harrison, P. F., Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Whitehead, M. (Mark) and Williams, M. P.). (2012) Search for the X(4140) state in B +→J/ψφK + decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 85 (Number 9). Article number 091103. doi:10.1103/PhysRevD.85.091103 ISSN 1550-7998.
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WRAP_PhysRevD.85.091103.pdf - Published Version Available under License Creative Commons Attribution. Download (485Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevD.85.091103
Abstract
A search for the X(4140) state in B +→J/ψφK + decays is performed with 0.37fb -1 of pp collisions at √s=7TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4σ disagreement with a measurement by CDF. An upper limit on its production rate is set, B(B +→X(4140)K +) ×B(X(4140)→J/ψφ)/B(B +→J/ψφK +)<0.07 at 90% confidence level.
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