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Analysis of the quantum numbers J(PC) of the x(3872) particle

Abulencia, A; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; Amerio, S; ... CDF Collaboration; + view all (2007) Analysis of the quantum numbers J(PC) of the x(3872) particle. PHYS REV LETT , 98 (13) , Article 132002. 10.1103/PhysRevLett.98.132002. Green open access

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Abstract

We present an analysis of angular distributions and correlations of the X(3872) particle in the exclusive decay mode X(3872)-> J/psi pi(+)pi(-) with J/psi ->mu(+)mu(-). We use 780 pb(-1) of data from p (p) over bar collisions at root 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 J(PC) hypotheses. The assignments J(PC)=1(++) and 2(-+) are the only ones consistent with the data.

Type: Article
Title: Analysis of the quantum numbers J(PC) of the x(3872) particle
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.98.132002
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.98.132002
Language: English
Additional information: © 2007 The American Physical Society
Keywords: CHARMONIUM, DETECTOR
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131713
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