Evidence for the decay X(3872) -> J/psi omega
Evidence for the decay X(3872) -> J/psi omega
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DOI:
10.1103/physrevd.82.011101
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发表时间:
2010-05
影响因子:
5
通讯作者:
P. Sanchez;J. Lees;V. Poireau;E. Prencipe;V. Tisserand;J. G. Ticó;E. Grauges;M. Martinelli;A. Palano;M. Pappagallo;G. Eigen;B. Stugu;Lingfen Sun;M. Battaglia;D. Brown;B. Hooberman;L. Kerth;Y. Kolomensky;G. Lynch;I. Osipenkov
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文献类型:
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作者:
P. Sanchez;J. Lees;V. Poireau;E. Prencipe;V. Tisserand;J. G. Ticó;E. Grauges;M. Martinelli;A. Palano;M. Pappagallo;G. Eigen;B. Stugu;Lingfen Sun;M. Battaglia;D. Brown;B. Hooberman;L. Kerth;Y. Kolomensky;G. Lynch;I. Osipenkov
We present a study of the decays B^{0,+} --> J/psi pi^+ pi^- pi^0 K^{0,+}, using 467 10^6 BBbar pairs recorded with the BABAR detector. We present evidence for the decay mode X(3872) --> J/psi omega, with product branching fractions B(B^+ --> X(3872)K^+) B(X(3872) --> J/psi omega) =[0.6\pm0.2\stat \pm 0.1\syst ] 10^{-5}, and B(B^0 --> X(3872)K^0) B(X(3872) --> J/psi omega) =[0.6\pm0.3\stat \pm 0.1\syst ] 10^{-5}. A detailed study of the pi^+ pi^- pi^0 mass distribution from X(3872) decay favors a negative-parity assignment.