Study of the X(3872) and Y(4260) in B0→J/ψπ+π-K0 and B-→J/ψπ+π-K- decays

Bernard Aubert, R. Barate, D. Boutigny, F. Couderc,Y. Karyotakis, J. P. Lees,V. Poireau,V. Tisserand,A. Zghiche,E. Grauges, A. Palano,M. Pappagallo,Alexis Pompili,J. C. Chen,N. D. Qi, G. Rong, Pu Wang,Y. S. Zhu,G. Eigen, I. Ofte,B. Stugu,G. S. Abrams, M. Battaglia, A. B. Breon,D. N. Brown,Janice Button-Shafer,R. N. Cahn,E. Charles, C. T. Day,M. S. Gill,A. V. Gritsan, Y. Groysman,R. G. Jacobsen,R. W. Kadel,J. A. Kadyk,L. T. Kerth,Yu. G. Kolomensky, G. Kukartsev, G. Lynch,L. M. Mir,P. J. Oddone,T. J. Orimoto, M. Pripstein,N. A. Roe,M. T. Ronan,W. A. Wenzel, M. Barrett,K. E. Ford,T. J. Harrison,A. J. Hart,C. M. Hawkes,S. E. Morgan,A. T. Watson, M. Fritsch, K. Goetzen,T. Held,Herbert Koch, B. Lewandowski, M. Pelizaeus,K. Peters, T. Schroeder, M. Steinke,J. T. Boyd,J. P. Burke, N. Chevalier,W. N. Cottingham, T. Cuhadar-Donszelmann, B. G. Fulsom,C. Hearty,N. S. Knecht,T. S. Mattison,J. A. McKenna,Akram Khan,P. Kyberd,M. Saleem,Liliana Teodorescu,A. E. Blinov,V. E. Blinov,A. D. Bukin,V. P. Druzhinin,V. B. Golubev,E. A. Kravchenko,A. P. Onuchin,S. I. Serednyakov,Yu I. Skovpen,E. P. Solodov,A. N. Yushkov, D. S. Best, M. Bondioli, M. Bruinsma, M. Chao, S. Curry, I. Eschrich,D. Kirkby,A. J. Lankford,P. Lund,M. Mandelkern, R. K. Mommsen, W. Roethel,D. P. Stoker

Physical Review D（2006）

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摘要

We present results of a search for the X(3872) in B{sup 0}{yields}X(3872)K{sub S}{sup 0},X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -}, improved measurements of B{sup -}{yields}X(3872)K{sup -}, and a study of the J/{psi}{pi}{sup +}{pi}{sup -} mass region above the X(3872). We use 232x10{sup 6} BB pairs collected at the {upsilon}(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} asymmetric-energy storage rings. The results include the 90% confidence interval 1.34x10{sup -6}更多

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