Jet-parton inelastic interaction beyond eikonal approximation

被引：7

作者：

Abir, Raktim ^{[1
]}

机构：

[1] Saha Inst Nucl Phys, Div Theory, Kolkata 700064, India

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 03期

关键词：

ENERGY-LOSS; COLLISIONS;

D O I：

10.1103/PhysRevD.87.034036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Most of the models of jet quenching generally assumes that a jet always travels in a straight eikonal path, which is indeed true for sufficiently hard jet but may not be a good one for moderate and low momentum jet. In this article an attempt has been made to relax part of this approximation for 2 -> 3 processes and found a (15-20)% suppression in the differential cross section for moderately hard jets because of the noneikonal effects. In particular, for the process qq' -> qq'g in the centre of momentum frame the scattering with an angle wider than +/- 0.52 pi is literally forbidden unlike the process gg -> ggg that allows an angular range +/-pi. This may have consequence on the suppression of hadronic spectra at low transverse momenta. DOI: 10.1103/PhysRevD.87.034036

引用

页数：7

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