Radiative energy loss of neighboring subjets

Mehtar-Tani, Yacine; Tywoniuk, Konrad

doi:10.1016/j.nuclphysa.2018.09.041

Title: Radiative energy loss of neighboring subjets

Journal Article · Thu Nov 01 00:00:00 EDT 2018 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2018.09.041· OSTI ID:1481045

Mehtar-Tani, Yacine;

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.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: FG02-00ER41132; SC0012704

OSTI ID:: 1481045

Alternate ID(s):: OSTI ID: 1483752

Report Number(s):: BNL-209513-2018-JAAM; S037594741830229X; PII: S037594741830229X

Journal Information:: Nuclear Physics. A, Journal Name: Nuclear Physics. A Vol. 979 Journal Issue: C; ISSN 0375-9474

Publisher:: ElsevierCopyright Statement

Country of Publication:: Netherlands

Language:: English

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Cited by: 14 works

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