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Title: Revisiting heavy quark radiative energy loss in nuclei within the high-twist approach

Abstract

We revisit the calculation of multiple parton scattering of a heavy quark in nuclei within the framework of recently improved high-twist factorization formalism, in which gauge invariance is ensured by a delicate setup of the initial partons' transverse momenta. We derive a new result for medium modified heavy quark fragmentation functions in deeply inelastic scattering. It is consistent with the previous calculation of light quark energy loss in the massless limit, but leads to a new correction term in the heavy quark case, which vanishes in the soft gluon radiation limit. We show numerically the significance of the new correction term in the calculation of heavy quark energy loss as compared to previous studies and with soft gluon radiation approximation.

Authors:
 [1];  [2];  [2];  [3];  [4]
  1. Nanjing Univ. (China); Giersch Science Center, Frankfurt (Germany); Goethe Univ., Frankfurt (Germany)
  2. Central China Normal Univ., Wuhan (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. South China Normal Univ., Guangzhou (China); Northwestern Univ., Evanston, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Nanjing Univ. (China); Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing (China); Chinese Academy of Sciences (CAS), Beijing (China)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1470801
Alternate Identifier(s):
OSTI ID: 1478356
Grant/Contract Number:  
AC02-05CH11231; FG02-91ER40684; AC02-06CH11357
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Du, Yi-Lun, He, Yayun, Wang, Xin-Nian, Xing, Hongxi, and Zong, Hong-Shi. Revisiting heavy quark radiative energy loss in nuclei within the high-twist approach. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.054015.
Du, Yi-Lun, He, Yayun, Wang, Xin-Nian, Xing, Hongxi, & Zong, Hong-Shi. Revisiting heavy quark radiative energy loss in nuclei within the high-twist approach. United States. doi:10.1103/PhysRevD.98.054015.
Du, Yi-Lun, He, Yayun, Wang, Xin-Nian, Xing, Hongxi, and Zong, Hong-Shi. Fri . "Revisiting heavy quark radiative energy loss in nuclei within the high-twist approach". United States. doi:10.1103/PhysRevD.98.054015.
@article{osti_1470801,
title = {Revisiting heavy quark radiative energy loss in nuclei within the high-twist approach},
author = {Du, Yi-Lun and He, Yayun and Wang, Xin-Nian and Xing, Hongxi and Zong, Hong-Shi},
abstractNote = {We revisit the calculation of multiple parton scattering of a heavy quark in nuclei within the framework of recently improved high-twist factorization formalism, in which gauge invariance is ensured by a delicate setup of the initial partons' transverse momenta. We derive a new result for medium modified heavy quark fragmentation functions in deeply inelastic scattering. It is consistent with the previous calculation of light quark energy loss in the massless limit, but leads to a new correction term in the heavy quark case, which vanishes in the soft gluon radiation limit. We show numerically the significance of the new correction term in the calculation of heavy quark energy loss as compared to previous studies and with soft gluon radiation approximation.},
doi = {10.1103/PhysRevD.98.054015},
journal = {Physical Review D},
number = 5,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.98.054015

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