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arXiv · 0802.3610

Estimate for the X(3872) to gamma J/psi decay width

Yubing Dong·Amand Faessler·Thomas Gutsche·Valery E. Lyubovitskij
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Abstract

The X(3872) resonance is considered as a hadronic molecule, a loosely-bound state of charmed D0 and D*0 mesons, since its mass is very close to the D*0 barD0 threshold. Assuming structure and quantum numbers of X(3872) as (D0 barD*0 - D*0 barD0)/sqrt(2) and J(PC) = 1(++), we calculate the X(3872) to gamma J/psi decay using a phenomenological Lagrangian approach. We also estimate the contribution of an additional c bar(c) component in the X(3872) to this decay width, which is shown to be suppressed relative to the one of the molecular configuration.

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Yubing Dong, Amand Faessler, Thomas Gutsche, Valery E. Lyubovitskij. 2008-05-20. Estimate for the X(3872) to gamma J/psi decay width. https://doi.org/10.1103/physrevd.77.094013

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