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Search for B+-> X(3872)K+, X(3872)-> J/psi gamma

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BABAR Collaboration (Including:

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A. et al.
). (2006) Search for B+-> X(3872)K+, X(3872)-> J/psi gamma. PHYSICAL REVIEW D, 74 (7). -. ISSN 1550-7998

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Abstract

In a study of B+-> J/psi gamma K+ decays, we find evidence for the radiative decay X(3872)-> J/psi gamma with a statistical significance of 3.4 sigma. We measure the product of branching fractions B(B+-> X(3872)K+)center dot B(X(3872)-> J/psi gamma)=(3.3 +/- 1.0 +/- 0.3)x10(-6), where the uncertainties are statistical and systematic, respectively. We also measure the branching fraction B(B+->chi K-c1(+))=(4.9 +/- 0.2 +/- 0.4)x10(-4). These results are obtained from (287 +/- 3) million B (B) over bar decays collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II B Factory at SLAC.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Journal or Publication Title: PHYSICAL REVIEW D
Publisher: AMERICAN PHYSICAL SOC
ISSN: 1550-7998
Date: October 2006
Volume: 74
Number: 7
Number of Pages: 7
Page Range: -
Identification Number: 10.1103/PhysRevD.74.071101
Publication Status: Published
URI: http://wrap.warwick.ac.uk/id/eprint/32843

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