Measurements of the Absolute Branching Fractions of B+- -> K+- X_ccbar

B Aubert, Matthew Barrett, Kelly Ford, Theresa Harrison, Alistair Hart, Christopher Hawkes, Alan Watson, Sian Morgan

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74 Citations (Scopus)


We study the two-body decays of B+/- mesons to K+/- and a charmonium state X(cc) in a sample of 210.5 fb(-1) of data from the BABAR experiment. We perform measurements of absolute branching fractions beta(B+/- --> K+/-X(cc)) using a missing mass technique, and report several new or improved results. In particular, the upper limit beta(B+/- --> K+/- X(3872)) <3.2 x 10(-4) at 90% C.L. and the inferred lower limit beta(X(3872)J/psipi+ pi-) > 4.2% will help in understanding the nature of the recently discovered X(3872).
Original languageEnglish
Pages (from-to)052002
Number of pages1
JournalPhysical Review Letters
Publication statusPublished - 1 Feb 2006


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