Jet quenching in the hadron gas: An exploratory study

被引：17

作者：

Dorau, P. ^{[1
]}

Rose, J-B ^{[1
,2
]}

Pablos, D. ^{[3
]}

Elfner, H. ^{[1
,2
,4
]}

机构：

[1] Goethe Univ, Inst Theoret Phys, D-60438 Frankfurt, Germany

[2] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[3] Univ Bergen, Inst Fysikk & Teknol, Postboks 7803, N-5020 Bergen, Norway

[4] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

来源：

PHYSICAL REVIEW C | 2020年 / 101卷 / 03期

关键词：

COLLISIONS;

D O I：

10.1103/PhysRevC.101.035208

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The suppression of high-momentum particles in heavy-ion collisions in comparison to elementary reactions is one of the main indications for the formation of a quark-gluon plasma. In recent studies, full jets are being reconstructed and substructure observables are gaining importance in assessing the medium modifications of hard probes. In this work, the effect of the late-stage hadronic interactions are explored within the hadronic transport approach simulating many accelerated strongly-interacting hadrons. High-momentum particles are incorporated in a radially expanding hadron gas to analyze the corresponding angular distributions, also refered to as "jet shape" observables. We find that for such an observable the full hadron gas can be approximated with a pion gas with constant elastic cross sections of 100 mb. In addition, the temperature and probe energy dependence of diffusion coefficients (q) over tilde and (e) over tilde quantifying the transverse and parallel momentum transfers are extracted. The species dependence and the importance of different interaction types are investigated. Parametrizations are presented that can be employed in future jet quenching calculations to include the effect of the hadronic phase.

引用

页数：7

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