Study of the charmless inclusive B →η′ X decay

G. Bonvicini, D. Cinabro, M. Dubrovin, S. McGee, A. Bornheim, E. Lipeles, S. P. Pappas, A. Shapiro, W. M. Sun, A. J. Weinstein, R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, N. E. Adam, J. P. Alexander, K. Berkelman, V. Boisvert, D. G. CasselP. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, A. Magerkurth, H. Mahlke-Krüger, T. O. Meyer, N. B. Mistry, J. R. Patterson, D. Peterson, J. Pivarski, S. J. Richichi, D. Riley, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, J. G. Thayer, Y. Kubota, R. Poling, D. Cronin-Hennessy

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Abstract

Based on a measurement of high momentum η′ production in B decays, we determine the charmless inclusive B → η′ X nc branching fraction in the lab-frame momentum interval 2.0<Pη′<2.7 GeV/c. Using 9.7×10 6BB̄ pairs collected at the Y(4S) center-of-mass energy with the CLEO II and II.V detector configurations, we find B(B→ η′ X nc) = [4.6±1.1±0.4±0.5]×10-4 in the 2.0<Pη′<2.7 GeV/c momentum range, where the uncertainties are statistical, systematic, and from subtraction of background from B decays to charm, respectively.

Original languageEnglish (US)
Article number011101
JournalPhysical Review D
Volume68
Issue number1
DOIs
StatePublished - Jul 1 2003

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