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First observation of the decay Bc+ -> J/psi pi+ pi- pi+


LHCb Collaboration; Anderson, J; Bernet, R; Büchler-Germann, A; Bursche, A; Chiapolini, N; De Cian, M; Elsasser, C; Müller, K; Palacios, J; Salzmann, C; Steinkamp, O; Serra, N; Straumann, U; Tobin, M; Vollhardt, A; et al (2012). First observation of the decay Bc+ -> J/psi pi+ pi- pi+. Physical Review Letters, 108(25):251802.

Abstract

The decay Bc+→J/ψπ+π-π+ is observed for the first time, using 0.8  fb-1 of pp collisions at √s=7  TeV collected by the LHCb experiment. The ratio of branching fractions B(Bc+→J/ψπ+π-π+)/B(Bc+→J/ψπ+) is measured to be 2.41±0.30±0.33, where the first uncertainty is statistical and the second is systematic. The result is in agreement with theoretical predictions.

Abstract

The decay Bc+→J/ψπ+π-π+ is observed for the first time, using 0.8  fb-1 of pp collisions at √s=7  TeV collected by the LHCb experiment. The ratio of branching fractions B(Bc+→J/ψπ+π-π+)/B(Bc+→J/ψπ+) is measured to be 2.41±0.30±0.33, where the first uncertainty is statistical and the second is systematic. The result is in agreement with theoretical predictions.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2012
Deposited On:04 Mar 2013 16:19
Last Modified:05 Apr 2016 16:35
Publisher:American Physical Society
ISSN:0031-9007
Publisher DOI:https://doi.org/10.1103/PhysRevLett.108.251802

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