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arXiv 1409.4652nucl-thhep-ph
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强子介质中隐魅介子的扩散

Diffusion of hidden charm mesons in hadronic medium

Sukanya Mitra, Sabyasachi Ghosh, Santosh K. Das, Sourav Sarkar, Jan-e Alam

摘要:

用隐魅介子作为探针计算了热强子介质的阻力系数和扩散系数。这些系数的评估的矩阵元素计算使用有效的理论,以及从散射长度。虽然输运系数随温度的升高而显著增加,但对强子物质中$J/ψ$的抑制作用并不显著。

英文摘要:

The drag and diffusion coefficients of a hot hadronic medium have been evaluated by using hidden charm mesons as probes. The matrix elements for the evaluation of these coefficients are calculated using an effective theory as well as from scattering lengths. Although the transport coefficients show a significant rise with temperature its effects on the suppression of $J/ψ$ in hadronic matter is not significant.

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