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English

Analysis of the Quantum Numbers JPC of the X(3872) Particle

Contributors

CDF Collaboration

Collaborators

Campanelli, Mario; Clark, Allan Geoffrey; Donega, Mauro; Moed, Shulamit; Sfyrla, Anna; Vallecorsa, Sofia; Wu, Xin

Published in

Physical review letters, vol. 98, no. 13, 132002

Publication date

2007

Abstract

We present an analysis of angular distributions and correlations of the X(3872) particle in the exclusive decay mode X(3872)→J/ψπ+π− with J/ψ→μ+μ−. We use 780  pb−1 of data from pp collisions at s√=1.96  TeV collected with the CDF II detector at the Fermilab Tevatron. We derive constraints on spin, parity, and charge conjugation parity of the X(3872) particle by comparing measured angular distributions of the decay products with predictions for different JPC hypotheses. The assignments JPC=1++ and 2−+ are the only ones consistent with the data.

UNIGE affiliation entities

Citation (ISO format)

CDF Collaboration. Analysis of the Quantum Numbers JPC of the X(3872) Particle. In: Physical review letters, 2007, vol. 98, n° 13, p. 132002. doi: 10.1103/PhysRevLett.98.132002

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Article (Published version)

Identifiers

Additional URL for this publication

http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.132002

Journal ISSN

0031-9007
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Technical informations

Creation

01/07/2014 14:37:00

First validation

01/07/2014 14:37:00

Update

13/10/2025 22:34:30

Status update

14/03/2023 21:25:01

Last indexation

10/11/2026 16:57:30
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