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Title: Conical flow due to partonic jets in central Au+Au collisions

Abstract

In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high-p{sub T} hadrons. The process can generate shock waves. We study the distortion of Mach shock waves due to jet quenching in central Au+Au collisions and its effect on particle production. Finite fluid velocity and inhomogeneity of the medium can distort the Mach shock front significantly such that the inside shock front disappear and the outside shock front is opened up. We also show that the STAR data on azimuthal distribution of background subtracted secondaries, associated with high p{sub T} trigger, are reasonably well explained by the excess pions produced due to partonic energy loss.

Authors:
 [1]
  1. Variable Energy Cyclotron Centre, 1-AF, Bidhan Nagar, Kolkata-700064 (India)
Publication Date:
OSTI Identifier:
20995351
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.75.057902; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COLLISIONS; ENERGY LOSSES; GOLD 197 REACTIONS; GOLD 197 TARGET; JETS; PARTICLE PRODUCTION; PIONS; QUANTUM CHROMODYNAMICS; QUENCHING; SHOCK WAVES

Citation Formats

Chaudhuri, A. K.. Conical flow due to partonic jets in central Au+Au collisions. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.057902.
Chaudhuri, A. K.. Conical flow due to partonic jets in central Au+Au collisions. United States. doi:10.1103/PHYSREVC.75.057902.
Chaudhuri, A. K.. Tue . "Conical flow due to partonic jets in central Au+Au collisions". United States. doi:10.1103/PHYSREVC.75.057902.
@article{osti_20995351,
title = {Conical flow due to partonic jets in central Au+Au collisions},
author = {Chaudhuri, A. K.},
abstractNote = {In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high-p{sub T} hadrons. The process can generate shock waves. We study the distortion of Mach shock waves due to jet quenching in central Au+Au collisions and its effect on particle production. Finite fluid velocity and inhomogeneity of the medium can distort the Mach shock front significantly such that the inside shock front disappear and the outside shock front is opened up. We also show that the STAR data on azimuthal distribution of background subtracted secondaries, associated with high p{sub T} trigger, are reasonably well explained by the excess pions produced due to partonic energy loss.},
doi = {10.1103/PHYSREVC.75.057902},
journal = {Physical Review. C, Nuclear Physics},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}