Search for the X(4140) State in B+ → J/ψ ϕ K+ Decays ABSTRACT: A search for the X(4140) state in B+ → J/ψ ϕ K+ decays is performed with 0.3 fb^-1 of pp collisions at √s = 7 TeV 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+) x B(X(4140) → J/ψ ϕ)/B(B+ → J/ψ ϕ K+) < 0.07 at 90% confidence level.
Search for the X(4140) State in B+ → J/ψ ϕ K+ Decays
CARBONE, ANGELO;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2012
Abstract
Search for the X(4140) State in B+ → J/ψ ϕ K+ Decays ABSTRACT: A search for the X(4140) state in B+ → J/ψ ϕ K+ decays is performed with 0.3 fb^-1 of pp collisions at √s = 7 TeV 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+) x B(X(4140) → J/ψ ϕ)/B(B+ → J/ψ ϕ K+) < 0.07 at 90% confidence level.File in questo prodotto:
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