部分可观测时空混沌系统的无模型预测

论文标题

部分可观测时空混沌系统的无模型预测

Multi-scale evolution of charmed particles in a nuclear medium

论文作者

JETSCAPE collaboration, Fan, W., Vujanovic, G., Bass, S. A., Majumder, A., Angerami, A., Arora, R., Cao, S., Chen, Y., Dai, T., Du, L., Ehlers, R., Elfner, H., Fries, R. J., Gale, C., He, Y., Heffernan, M., Heinz, U., Jacak, B. V., Jacobs, P. M., Jeon, S., Ji, Y., Kauder, K., Kasper, L., Ke, W., Kelsey, M., Kordell II, M., Kumar, A., Latessa, J., Lee, Y. -J., Liyanage, D., Lopez, A., Luzum, M., Mak, S., Mankolli, A., Martin, C., Mehryar, H., Mengel, T., Mulligan, J., Nattrass, C., Oliinychenko, D., Paquet, J. -F., Putschke, J. H., Roland, G., Schenke, B., Schwiebert, L., Sengupta, A., Shen, C., Silva, A., Sirimanna, C., Soeder, D., Soltz, R. A., Soudi, I., Staudenmaier, J., Strickland, M., Tachibana, Y., Velkovska, J., Wang, X. -N., Wolpert, R. L., Zhao, W.

论文摘要

与Quark Gluon等离子体（QGP）的Parton Energy-Momentum交换是一个多尺度问题。在这项工作中，我们使用物质模型计算了高度虚拟和高能量的较高扭曲形式，而较低的虚拟性和高能量部分是通过（线性化的）玻尔兹曼运输（LBT）形式上处理的，而质量较高，而高能量的相互作用是高度虚拟和高能量的相互作用。还考虑了降低物质模型中中型诱导的排放率的相干效应。详细研究了这两种形式主义之间的相互作用，并用于对跨多个中心的D-Meson和带电的强子核修饰因子RAA进行良好描述。所有计算均使用Jetscape框架进行。

Parton energy-momentum exchange with the quark gluon plasma (QGP) is a multi-scale problem. In this work, we calculate the interaction of charm quarks with the QGP within the higher twist formalism at high virtuality and high energy using the MATTER model, while the low virtuality and high energy portion is treated via a (linearized) Boltzmann Transport (LBT) formalism. Coherence effect that reduces the medium-induced emission rate in the MATTER model is also taken into account. The interplay between these two formalisms is studied in detail and used to produce a good description of the D-meson and charged hadron nuclear modification factor RAA across multiple centralities. All calculations were carried out utilizing the JETSCAPE framework.

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