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Measurements of the absolute branching fractions of B-+/--> K-+/- Xc(c)over-bar-$
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UNSPECIFIED (2006) Measurements of the absolute branching fractions of B-+/--> K-+/- Xc(c)over-bar-$. PHYSICAL REVIEW LETTERS, 96 (5). -. doi:10.1103/PhysRevLett.96.052002 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.96.052002
Abstract
We study the two-body decays of B+/- mesons to K+/- and a charmonium state X-c(c) over bar in a sample of 210.5 fb(-1) of data from the BABAR experiment. We perform measurements of absolute branching fractions B(B+/- -> K+/-Xc(c) over bar) using a missing mass technique, and report several new or improved results. In particular, the upper limit B(B+/- -> K+/-X(3872)) < 3.2 x 10(-4) at 90% C.L. and the inferred lower limit B(X(3872) -> J/psi pi(+)pi(-)) > 4.2% will help in understanding the nature of the recently discovered X(3872).
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW LETTERS | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 10 February 2006 | ||||
Dates: |
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Volume: | 96 | ||||
Number: | 5 | ||||
Number of Pages: | 7 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevLett.96.052002 | ||||
Publication Status: | Published |
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