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DD¯*scattering andχc1(3872)in nuclear matter
Physical Review C ( IF 3.2 ) Pub Date : 2021-09-20 , DOI: 10.1103/physrevc.104.035203
M. Albaladejo , J. Nieves , L. Tolos

We study the behavior of the χc1(3872), also known as X(3872), in dense nuclear matter. We begin from a picture in vacuum of the X(3872) as a purely molecular (DD¯*-c.c.) state, generated as a bound state from a heavy-quark symmetry leading-order interaction between the charmed mesons, and analyze the DD¯* scattering T matrix (TDD¯*) inside of the medium. Next, we consider also mixed-molecular scenarios and, in all cases, we determine the corresponding X(3872) spectral function and the DD¯* amplitude, with the mesons embedded in the dense environment. We find important nuclear corrections for TDD¯* and the pole position of the resonance, and discuss the dependence of these results on the DD¯* molecular component in the X(3872) wave function. These predictions could be tested in the finite-density regime that can be accessed in the future CBM and PANDA experiments at the Facility for Antiproton and Ion Research (FAIR).

中文翻译:

核物质中的DD¯*散射和χc1(3872)

我们研究的行为 χC1(3872),也称为 X(3872), 在致密的核物质中。我们从真空中的图片开始X(3872) 作为纯分子 (DD¯*-cc) 态,作为束缚态产生于迷惑介子之间的重夸克对称前导相互作用,并分析 DD¯* 散射 矩阵 (DD¯*) 介质内部。接下来,我们还考虑混合分子场景,在所有情况下,我们确定相应的X(3872) 谱函数和 DD¯*振幅,介子嵌入密集环境中。我们发现重要的核校正DD¯* 和共振的极点位置,并讨论这些结果对 DD¯* 分子成分在 X(3872)波函数。这些预测可以在有限密度机制中进行测试,该机制可以在未来反质子和离子研究设施 (FAIR) 的 CBM 和 PANDA 实验中进行访问。
更新日期:2021-09-20
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