Search:
Computing and Library Services - delivering an inspiring information environment

Study of the B-→J/ψK-π+π- decay and measurement of the B-→X(3872)K- branching fraction

Aubert, B. et al. (2005) Study of the B-→J/ψK-π+π- decay and measurement of the B-→X(3872)K- branching fraction. Physical Review D, 71 (7). 071103. ISSN 1550-7998

Metadata only available from this repository.

Abstract

We study the decay B-→J/ψK-π+π- using 117×106 BB̅ events collected at the Y(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring. We measure the branching fractions B (B-→J/ψK-π+π-)=(116±7(stat.)±9(syst.))×10-5 and B (B-→X(3872)K-)× B (X(3872)→J/ψπ+π-)=(1.28±0.41)×10-5 and find the mass of the X(3872) to be 3873.4±1.4 MeV/c2. We search for the hc narrow state in the decay B-→hcK-, hc→J/ψπ+π- and for the decay B-→J/ψD0π-, with D0→K-π+. We set the 90% C.L. limits B(B-→hcK-)×B(hc→J/ψπ+π-)<3.4×10-6 and B(B-→J/ψD0π-)<5.2×10-5.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 12 May 2011 10:01
Last Modified: 12 May 2011 10:01
URI: http://eprints.hud.ac.uk/id/eprint/10390

Item control for Repository Staff only:

View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©