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Title: Effects of jet-induced medium excitation in γ-hadron correlation in A+A collisions

Abstract

Coupled Linear Boltzmann Transport and hydrodynamics (CoLBT-hydro) is developed for co-current and event-by-event simulations of jet transport and jet-induced medium excitation (j.i.m.e.) in high-energy heavy-ion collisions. This is made possible by a GPU parallelized (3+1)D hydrodynamics that has a source term from the energy-momentum deposition by propagating jet shower partons and provides real time update of the bulk medium evolution for subsequent jet transport. Hadron spectra in γ-jet events of A+A collisions at RHIC and LHC are calculated for the first time that include hadrons from both the modified jet and j.i.m.e. CoLBT-hydro describes well experimental data at RHIC on the suppression of leading hadrons due to parton energy loss. It also predicts the enhancement of soft hadrons from j.i.m.e. The onset of soft hadron enhancement occurs at a constant transverse momentum due to the thermal nature of soft hadrons from j.i.m.e. which also have a significantly broadened azimuthal distribution relative to the jet direction. Soft hadrons in the γ direction are, on the other hand, depleted due to a diffusion wake behind the jet.

Authors:
; ; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1437782
Alternate Identifier(s):
OSTI ID: 1435124
Grant/Contract Number:  
AC02- 05CH11231; SC0013460; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 777 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chen, Wei, Cao, Shanshan, Luo, Tan, Pang, Long-Gang, and Wang, Xin-Nian. Effects of jet-induced medium excitation in γ-hadron correlation in A+A collisions. Netherlands: N. p., 2018. Web. doi:10.1016/j.physletb.2017.12.015.
Chen, Wei, Cao, Shanshan, Luo, Tan, Pang, Long-Gang, & Wang, Xin-Nian. Effects of jet-induced medium excitation in γ-hadron correlation in A+A collisions. Netherlands. doi:10.1016/j.physletb.2017.12.015.
Chen, Wei, Cao, Shanshan, Luo, Tan, Pang, Long-Gang, and Wang, Xin-Nian. Thu . "Effects of jet-induced medium excitation in γ-hadron correlation in A+A collisions". Netherlands. doi:10.1016/j.physletb.2017.12.015.
@article{osti_1437782,
title = {Effects of jet-induced medium excitation in γ-hadron correlation in A+A collisions},
author = {Chen, Wei and Cao, Shanshan and Luo, Tan and Pang, Long-Gang and Wang, Xin-Nian},
abstractNote = {Coupled Linear Boltzmann Transport and hydrodynamics (CoLBT-hydro) is developed for co-current and event-by-event simulations of jet transport and jet-induced medium excitation (j.i.m.e.) in high-energy heavy-ion collisions. This is made possible by a GPU parallelized (3+1)D hydrodynamics that has a source term from the energy-momentum deposition by propagating jet shower partons and provides real time update of the bulk medium evolution for subsequent jet transport. Hadron spectra in γ-jet events of A+A collisions at RHIC and LHC are calculated for the first time that include hadrons from both the modified jet and j.i.m.e. CoLBT-hydro describes well experimental data at RHIC on the suppression of leading hadrons due to parton energy loss. It also predicts the enhancement of soft hadrons from j.i.m.e. The onset of soft hadron enhancement occurs at a constant transverse momentum due to the thermal nature of soft hadrons from j.i.m.e. which also have a significantly broadened azimuthal distribution relative to the jet direction. Soft hadrons in the γ direction are, on the other hand, depleted due to a diffusion wake behind the jet.},
doi = {10.1016/j.physletb.2017.12.015},
journal = {Physics Letters B},
number = C,
volume = 777,
place = {Netherlands},
year = {2018},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2017.12.015

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