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arXiv · 1103.3155

Strong Couplings of X(3872)_{J=1,2} and a New Look at J/psi Suppression in Heavy Ion Collisions

Federico Brazzi·Benjamin Grinstein·Fulvio Piccinini·Antonio Davide Polosa·Chiara Sabelli
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Abstract

We define and compute from data the strong couplings of the X(3872) with both of the possible quantum numbers assignments J^{PC}=1^{++},2^{-+}. We use these to compute cross sections for J/psi resonance scattering into D Dbar*. As an application of the results obtained we revise the calculation of the J/psi absorption in a hot hadron gas to confront with recent RHIC observations in Au-Au collisions.

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Federico Brazzi, Benjamin Grinstein, Fulvio Piccinini, Antonio Davide Polosa, Chiara Sabelli. 2011-03-16. Strong Couplings of X(3872)_{J=1,2} and a New Look at J/psi Suppression in Heavy Ion Collisions. https://doi.org/10.1103/physrevd.84.014003

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