Journal article

Search for a charged partner of the X(3872) in the B meson decay B -> X-K, X--> J/psi pi(-)pi(0)

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges-Pous, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu Show all

Physical Review D | AMER PHYSICAL SOC | Published : 2005

Abstract

We search for a charged partner of the X(3872) in the decay B → X K, X → J/ψπ π , using 234 × 10 BB events collected at the Y(4S) resonance with the BABAR detector at the PEP-II e e asymmetric-energy storage ring. The resulting product branching fraction upper limits are B(B → X K , X → J/ψπ π ) < 5.4 × 10 and B(B → X K̄ , X → J/ψπ π ) < 22 × 10 at the 90% confidence level. © 2005 The American Physical Society. - - - 0 6 + - 0 - + - - 0 -6 - - 0 - - 0 -6

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