Decays of the X(3872) into J/{psi} and light hadrons

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.054022· OSTI ID:20711452

Braaten, Eric; Kusunoki, Masaoki ^[1]

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1. Physics Department, Ohio State University, Columbus, Ohio 43210 (United States)

If the X(3872) is a loosely bound molecule of the charm mesons D{sup 0}D*{sup 0} and D*{sup 0}D{sup 0}, it can decay through the decay of a constituent in a hadronic channel with a nearby threshold, such as J/{psi}{omega} or J/{psi}{rho}. The differential decay rates of the X into J/{psi}{pi}{sup +}{pi}{sup -}, J/{psi}{pi}{sup +}{pi}{sup -}{pi}{sup 0}, J/{psi}{pi}{sup 0}{gamma}, and J/{psi}{gamma} are calculated in terms of XJ/{psi}{rho} and XJ/{psi}{omega} coupling constants using an effective Lagrangian that reproduces the decay rates of the {omega} and the {rho}. The dependence of the coupling constants on the binding energy and the total width of the X is determined by a factorization formula. Results from a model by Swanson are used to predict the partial width of X into J/{psi}{pi}{sup +}{pi}{sup -}{pi}{sup 0} as a function of the binding energy and the total width of the X.

• OSTI ID: 20711452
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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