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Title

Evidence for the decay X(3872) -> J/psi omega

AuthorsBabar Collaboration; López-March, Neus ; Martínez-Vidal, Fernando ; Milanés, Diego A. ; Oyanguren, Arantza ; Sánchez, P. D.; Lees, J. P.
Issue Date9-Jul-2010
PublisherAmerican Physical Society
CitationPhysical Review - Section D - Particles and Fields 82 (1): 011101 (2010)
AbstractWe present a study of the decays B-0,B-+ -> J/psi pi(+)pi(-)pi K-0(0,+), using 467 x 106 B (B) over bar pairs recorded with the BABAR detector. We present evidence for the decay mode X(3872) -> J/psi omega, with product branching fractions B(B+ -> X(3872K(+)) x B(X(3872) -> J/psi omega) = [0.6 +/- 0.2(stat) +/- 0.1(syst)] x 10(-5), and B(B-0 -> X(3872)K-0) x B(X(3872) -> J/psi omega) = [0.6 +/- 0.3(stat) +/- 0.1(syst)] x 10(-5). A detailed study of the pi(+) pi(-) pi(0) mass distribution from X(3872) decay favors a negative-parity assignment.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.82.011101
URIhttp://hdl.handle.net/10261/26612
DOI10.1103/PhysRevD.82.011101
ISSN1550-7998
Appears in Collections:(IFIC) Artículos
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