Radiative energy loss of neighboring subjets

doi:10.1016/j.nuclphysa.2018.09.041

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:

Mehtar-Tani, Yacine;

Publication Date:: 2018-11-01

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

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

OSTI Identifier:: 1481045

Alternate Identifier(s):: OSTI ID: 1483752

Report Number(s):: BNL-209513-2018-JAAM
Journal ID: ISSN 0375-9474; S037594741830229X; PII: S037594741830229X

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

Resource Type:: Published Article

Journal Name:: Nuclear Physics. A

Additional Journal Information:: Journal Name: Nuclear Physics. A Journal Volume: 979 Journal Issue: C; Journal ID: ISSN 0375-9474

Publisher:: Elsevier

Country of Publication:: Netherlands

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.  Netherlands: N. p., 2018. 
        Web.  doi:10.1016/j.nuclphysa.2018.09.041.

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                    Mehtar-Tani, Yacine, & Tywoniuk, Konrad. Radiative energy loss of neighboring subjets.  Netherlands.  doi:10.1016/j.nuclphysa.2018.09.041.

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                    Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Thu .  
        "Radiative energy loss of neighboring subjets".  Netherlands.  doi:10.1016/j.nuclphysa.2018.09.041.

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@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        = {Netherlands},

  year         = {2018},

  month        = {11}

}

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DOI: 10.1016/j.nuclphysa.2018.09.041

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Works referencing / citing this record:

Higher-order corrections to heavy-quark jet quenching
journal, July 2019

Blok, Boris; Tywoniuk, Konrad
The European Physical Journal C, Vol. 79, Issue 7
DOI: 10.1140/epjc/s10052-019-7061-4

Higher-order corrections to heavy-quark jet quenching
journal, July 2019

Blok, Boris; Tywoniuk, Konrad
The European Physical Journal C, Vol. 79, Issue 7
DOI: 10.1140/epjc/s10052-019-7061-4

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Title: Radiative energy loss of neighboring subjets

Abstract

Citation Formats

Higher-order corrections to heavy-quark jet quenching journal, July 2019

Higher-order corrections to heavy-quark jet quenching journal, July 2019

Higher-order corrections to heavy-quark jet quenching
journal, July 2019

Higher-order corrections to heavy-quark jet quenching
journal, July 2019