A search for the X(4140) state in B+ to J/psi phi K+ decays is performed with
0.37 fb-1 of pp collisions at sqrt(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, BR(B+ to
X(4140) K+) BR(X(4140) to J/psi phi) / BR(B+ to J/psi phi K+) < 0.07 at 90%
confidence level.
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)