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

Journal article

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. © 2012 CERN.

Authors: Aaij, R; Beteta, C; Adeva, B; Adinolfi, M; Adrover, C

• Publication status: Published
• Journal: Physical Review D
• Volume: 85
• Issue: 9
• Publication date: 2012-05-04
• DOI: 10.1103/PhysRevD.85.091103
• EISSN: 1550-2368
• ISSN: 1550-7998
• Language: English