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Title: Radiative energy loss of neighboring subjets

Abstract

Here, we compute the in-medium energy loss probability distribution of two neighboring subjets at leading order, in the large- N c approximation. Our result exhibits a gradual onset of color decoherence of the system and accounts for two expected limiting cases. When the angular separation is smaller than the characteristic angle for medium-induced radiation, the two-pronged substructure lose energy coherently as a single color charge, namely that of the parent parton. At large angular separation the two subjets lose energy independently. Our result is a first step towards quantifying effects of energy loss as a result of the fluctuation of the multiparton jet substructure and therefore goes beyond the standard approach to jet quenching based on single parton energy loss. We briefly discuss applications to jet observables in heavy-ion collisions.

Authors:
 [1]; ORCiD logo [2]
  1. Univ. of Washington, Seattle, WA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1481045
Alternate Identifier(s):
OSTI ID: 1483752
Report Number(s):
BNL-209513-2018-JAAM
Journal ID: ISSN 0375-9474
Grant/Contract Number:  
SC0012704; FG02-00ER41132
Resource Type:
Published Article
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 979; Journal Issue: C; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Perturbative QCD; Jet physics; Jet quenching

Citation Formats

Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Radiative energy loss of neighboring subjets. United States: N. p., 2018. Web. doi:10.1016/j.nuclphysa.2018.09.041.
Mehtar-Tani, Yacine, & Tywoniuk, Konrad. Radiative energy loss of neighboring subjets. United States. doi:10.1016/j.nuclphysa.2018.09.041.
Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Thu . "Radiative energy loss of neighboring subjets". United States. doi:10.1016/j.nuclphysa.2018.09.041.
@article{osti_1481045,
title = {Radiative energy loss of neighboring subjets},
author = {Mehtar-Tani, Yacine and Tywoniuk, Konrad},
abstractNote = {Here, we compute the in-medium energy loss probability distribution of two neighboring subjets at leading order, in the large-Nc approximation. Our result exhibits a gradual onset of color decoherence of the system and accounts for two expected limiting cases. When the angular separation is smaller than the characteristic angle for medium-induced radiation, the two-pronged substructure lose energy coherently as a single color charge, namely that of the parent parton. At large angular separation the two subjets lose energy independently. Our result is a first step towards quantifying effects of energy loss as a result of the fluctuation of the multiparton jet substructure and therefore goes beyond the standard approach to jet quenching based on single parton energy loss. We briefly discuss applications to jet observables in heavy-ion collisions.},
doi = {10.1016/j.nuclphysa.2018.09.041},
journal = {Nuclear Physics. A},
number = C,
volume = 979,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.nuclphysa.2018.09.041

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Cited by: 2 works
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