Strong couplings of X(3872)J=1,2 and a new look at J/ψ suppression in heavy ion collisions
Strong couplings of X(3872)J=1,2 and a new look at J/ψ suppression in heavy ion collisions
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X(3872)J=1,2 的强耦合以及重离子碰撞中 J/ψ 抑制的新视角
DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
C. Sabelli
中科院分区:
文献类型:
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作者:
F. Brazzi;B. Grinstein;F. Piccinini;A. Polosa;C. Sabelli
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.