A search for the $X(4140)$ state in $B^{+}\to J/\psi \varphi K^{+}$ decays is performed with $0.37{\mathrm{fb}}^{-1}$ of $pp$ collisions at $\sqrt{s}=7\mathrm{TeV}$ 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, $\mathcal{B}(B^{+}\to X(4140)K^{+})\times \mathcal{B}(X(4140)\to J/\psi \varphi )/\mathcal{B}(B^{+}\to J/\psi \varphi K^{+})<0.07$ at 90% confidence level.

• Received 23 February 2012

DOI:https://doi.org/10.1103/PhysRevD.85.091103

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2012 CERN, for the LHCb Collaboration