Jet-parton inelastic interaction beyond eikonal approximation
Abstract
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 \pm 0.52\pi, is literally forbidden unlike the process gg --> ggg that allows an angular range \pm \pi. This may have consequence on the suppression of hadronic spectra at low transverse momenta.
Cite
@article{arxiv.1301.1839,
title = {Jet-parton inelastic interaction beyond eikonal approximation},
author = {Raktim Abir},
journal= {arXiv preprint arXiv:1301.1839},
year = {2013}
}
Comments
7 pages, 5 figures, version published in Phys. Rev. D