Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
... Neal, H; + view all
(2006)
Measurements of the absolute branching fractions of B-+/--> K-+/- Xc(c)over-bar-$.
PHYS REV LETT
, 96
(5)
, Article 052002. 10.1103/PhysRevLett.96.052002.
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Abstract
We study the two-body decays of B+/- mesons to K+/- and a charmonium state X-c(c) over bar in a sample of 210.5 fb(-1) of data from the BABAR experiment. We perform measurements of absolute branching fractions B(B+/- -> K+/-Xc(c) over bar) using a missing mass technique, and report several new or improved results. In particular, the upper limit B(B+/- -> K+/-X(3872)) < 3.2 x 10(-4) at 90% C.L. and the inferred lower limit B(X(3872) -> J/psi pi(+)pi(-)) > 4.2% will help in understanding the nature of the recently discovered X(3872).
| Type: | Article |
|---|---|
| Title: | Measurements of the absolute branching fractions of B-+/--> K-+/- Xc(c)over-bar-$ |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.96.052002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.96.052002 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | DECAYS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1303767 |
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