在多阶段蒙特卡洛进场中的喷气淬火

论文标题

在多阶段蒙特卡洛进场中的喷气淬火

Jet quenching in a multi-stage Monte Carlo approach

论文作者

Kumar, A., Angerami, A., Bass, S. A., Cao, S., Chen, Y., Coleman, J., Cunqueiro, L., Dai, T., Du, L., Ehlers, R., Elfner, H., Everett, D., Fan, W., Fries, R., Gale, C., He, Y., Heffernan, M., Heinz, U., Jacak, B. V., Jacobs, P. M., Jeon, S., Kauder, K., Ke, W., Khalaj, E., Kordell II, M., Luo, T., Luzum, M., Majumder, A., McNelis, M., Mulligan, J., Nattrass, C., Oliinychenko, D., Pablos, D., Pang, L. G., Park, C., Paquet, J. -F., Putschke, J. H., Roland, G., Schenke, B., Schwiebert, L., Shen, C., Silva, A., Sirimanna, C., Soltz, R. A., Tachibana, Y., Vujanovic, G., Wang, X. -N., Wolpert, R. L., Xu, Y., Yang, Z.

论文摘要

我们在统一的多阶段框架内提出了一个喷气淬火模型，并首次证明了对领先的黑标，包容性喷气机和椭圆流可观察物的同时描述，这些可观察到跨越多个中心和碰撞能量。这重点介绍了Jetscape框架的主要成功之一，即提供一种工具，用于建立有效的Parton Evolution，其中包括高见性辐射主导的能量损耗阶段（MATERS），然后是低空散射（LBT）能量损耗阶段。喷气机和带电的hadron $ r_ {aa} $的测量值对喷射淬火模型设置了强限制。 JET-MEDIUM响应也通过弱耦合的传输描述包括在内。

We present a jet quenching model within a unified multi-stage framework and demonstrate for the first time a simultaneous description of leading hadrons, inclusive jets, and elliptic flow observables which spans multiple centralities and collision energies. This highlights one of the major successes of the JETSCAPE framework in providing a tool for setting up an effective parton evolution that includes a high-virtuality radiation dominated energy loss phase (MATTER), followed by a low-virtuality scattering dominated (LBT) energy loss phase. Measurements of jet and charged-hadron $R_{AA}$ set strong constraints on the jet quenching model. Jet-medium response is also included through a weakly-coupled transport description.

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