BABAR Collaboration (Including:

). (2008) Study of B -> X(3872)K, with X(3872)-> J/psi pi(+)pi(-). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.77 (No.11). article no. 111101. ISSN 1550-7998.

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Abstract

We present measurements of the decays B+-> X(3872)K+ and B-0 -> X(3872)K-0 with X(3872) -> J/psi pi(+)pi(-). The data sample used, collected with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy storage ring, corresponds to 455x10(6)B (B) over bar pairs. Branching fraction measurements of B(B+-> X(3872)K+) x B(X(3872) -> J/psi pi(+)pi) = (8.4 +/- 1.5 +/- 0.7) x 10(-6) and B(B-0 -> X(3872)K-0) x B(X(3872) -> J/psi pi(+)pi) = (3.5 +/- 1.9 +/- 0.4) x 10(-6) are obtained. We set an upper limit on the natural width of the X(3872) of Gamma < 3.3 MeV/c(2) at the 90% confidence level.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher:	American Physical Society
ISSN:	1550-7998
Official Date:	June 2008
Dates:	Date Event June 2008 Published
Volume:	Vol.77
Number:	No.11
Number of Pages:	7
Page Range:	article no. 111101
Status:	Peer Reviewed
Publication Status:	Published

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