Publication

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

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Yasmine Sara Amhis, Julien Rouvinet, Barinjaka Rakotomiaramanana, Raluca Anca Muresan, Johan Luisier, Anne Keune, Vincent Fave, Hubert Degaudenzi, Mathias Oleg Knecht
2012
Journal Articles

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.

Official source

https://infoscience.epfl.ch/entities/publication/fa8993e3-44f5-4041-b550-ad94c2236b0a

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

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