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Title: Collisional energy loss of nonasymptotic jets in a quark-gluon plasma

Abstract

We calculate the collisional energy loss suffered by a heavy (charm) quark created at a finite time within a quark-gluon plasma in the classical linear response formalism as in Peigne et al. [J. High Energy Phys. 04 (2006) 011]. We pay close attention to the problem of formulating a suitable current and the isolation of binding and radiative energy loss effects. We find that unrealistic large binding effects arising in previous formulations must be subtracted. The finite time correction is shown to be important only for very short length scales on the order of a Debye length. The overall energy loss is similar in magnitude to the energy loss suffered by a charge created in the asymptotic past. This result has significant implications for the relative contribution to energy loss from collisional and radiative sources and has important ramifications for the ''single electron puzzle'' at the BNL Relativistic Heavy Ion Collider.

Authors:
; ; ;  [1]
  1. Columbia University, Department of Physics, 538 West 120-th Street, New York, New York, 10027 (United States)
Publication Date:
OSTI Identifier:
20995225
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.75.044906; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BNL; BROOKHAVEN RHIC; DEBYE LENGTH; ELECTRONS; ENERGY LOSSES; JETS; QUARK MATTER; QUARKS

Citation Formats

Adil, A., Gyulassy, M., Horowitz, W., and Wicks, S. Collisional energy loss of nonasymptotic jets in a quark-gluon plasma. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.044906.
Adil, A., Gyulassy, M., Horowitz, W., & Wicks, S. Collisional energy loss of nonasymptotic jets in a quark-gluon plasma. United States. doi:10.1103/PHYSREVC.75.044906.
Adil, A., Gyulassy, M., Horowitz, W., and Wicks, S. Sun . "Collisional energy loss of nonasymptotic jets in a quark-gluon plasma". United States. doi:10.1103/PHYSREVC.75.044906.
@article{osti_20995225,
title = {Collisional energy loss of nonasymptotic jets in a quark-gluon plasma},
author = {Adil, A. and Gyulassy, M. and Horowitz, W. and Wicks, S.},
abstractNote = {We calculate the collisional energy loss suffered by a heavy (charm) quark created at a finite time within a quark-gluon plasma in the classical linear response formalism as in Peigne et al. [J. High Energy Phys. 04 (2006) 011]. We pay close attention to the problem of formulating a suitable current and the isolation of binding and radiative energy loss effects. We find that unrealistic large binding effects arising in previous formulations must be subtracted. The finite time correction is shown to be important only for very short length scales on the order of a Debye length. The overall energy loss is similar in magnitude to the energy loss suffered by a charge created in the asymptotic past. This result has significant implications for the relative contribution to energy loss from collisional and radiative sources and has important ramifications for the ''single electron puzzle'' at the BNL Relativistic Heavy Ion Collider.},
doi = {10.1103/PHYSREVC.75.044906},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}