Solving the puzzle with x and scale dependence
Abstract
Here we present here a possible resolution of the jet quenching parameter puzzle by exploring the momentum fraction x and scale Q2 dependence of , in addition to temperature dependence. We explore the momentum broadening of the jet due to Glauber gluon exchange with the quark-gluon plasma (QGP). This has led us to define the momentum fraction x for the partons in the QGP. We also show here, for the first time, possible forms of the parton distribution function (PDF) of the QGP. The QGP-PDF as input in has been used to fit the PHENIX and CMS data simultaneously. We observe that the scale evolution of the QGP-PDF and the energy of the jet are the missing ingredients responsible for the enhancement of at the same temperature in RHIC collisions compared to LHC collisions.
- Authors:
-
- Wayne State Univ., Detroit, MI (United States)
- Arizona State Univ., Tempe, AZ (United States)
- China Normal Univ., Wuhan (China); Wayne State Univ., Detroit, MI (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Wayne State Univ., Detroit, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1502361
- Grant/Contract Number:
- SC0013460
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Physics. A
- Additional Journal Information:
- Journal Volume: 967; Journal Issue: C; Journal ID: ISSN 0375-9474
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Transverse momentum broadening; Scale evolution of ˆq; Quark-gluon plasma PDF; Factorization
Citation Formats
Kumar, Amit, Bianchi, Evan, Elledge, Jacob, Majumder, Abhijit, Qin, Guang -You, and Shen, Chun. Solving the qˆ puzzle with x and scale dependence. United States: N. p., 2017.
Web. doi:10.1016/j.nuclphysa.2017.05.015.
Kumar, Amit, Bianchi, Evan, Elledge, Jacob, Majumder, Abhijit, Qin, Guang -You, & Shen, Chun. Solving the qˆ puzzle with x and scale dependence. United States. doi:https://doi.org/10.1016/j.nuclphysa.2017.05.015
Kumar, Amit, Bianchi, Evan, Elledge, Jacob, Majumder, Abhijit, Qin, Guang -You, and Shen, Chun. Mon .
"Solving the qˆ puzzle with x and scale dependence". United States. doi:https://doi.org/10.1016/j.nuclphysa.2017.05.015. https://www.osti.gov/servlets/purl/1502361.
@article{osti_1502361,
title = {Solving the qˆ puzzle with x and scale dependence},
author = {Kumar, Amit and Bianchi, Evan and Elledge, Jacob and Majumder, Abhijit and Qin, Guang -You and Shen, Chun},
abstractNote = {Here we present here a possible resolution of the jet quenching parameter qˆ puzzle by exploring the momentum fraction x and scale Q2 dependence of qˆ, in addition to temperature dependence. We explore the momentum broadening of the jet due to Glauber gluon exchange with the quark-gluon plasma (QGP). This has led us to define the momentum fraction x for the partons in the QGP. We also show here, for the first time, possible forms of the parton distribution function (PDF) of the QGP. The QGP-PDF as input in qˆ has been used to fit the PHENIX and CMS data simultaneously. We observe that the scale evolution of the QGP-PDF and the energy of the jet are the missing ingredients responsible for the enhancement of qˆ at the same temperature in RHIC collisions compared to LHC collisions.},
doi = {10.1016/j.nuclphysa.2017.05.015},
journal = {Nuclear Physics. A},
number = C,
volume = 967,
place = {United States},
year = {2017},
month = {9}
}
Web of Science
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