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Title: Photon structure studied at an electron ion collider

Abstract

We report that a future electron ion collider (EIC) will be able to provide collisions of polarized electrons with protons and heavy ions over a wide range of center-of-mass energies (20 GeV to 140 GeV) at an instantaneous luminosity of 10 33 - 10 34cm -2s -1. One of its promising physics programs is the study of the partonic structure of quasireal photons. Measuring dijets in quasireal photoproduction events, one can effectively access the underlying parton dynamics of the photons. In this paper, we discuss the feasibility of tagging resolved photon processes and measuring the dijet cross section as a function of jet transverse momentum in the range of 0.01 < x$$rec\atop{γ}$$ < 1 at an EIC. Finally, it will be shown that both unpolarized and polarized parton distributions in the photon can be extracted, and that the flavor of the parton can be tagged at an EIC.

Authors:
 [1];  [2];  [2];  [3]
  1. Normal University, Wuhan (China). Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China ; Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
  3. Normal University, Wuhan (China). Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China
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:
1413939
Alternate Identifier(s):
OSTI ID: 1406139
Report Number(s):
BNL-114708-2017-JA
Journal ID: ISSN 2470-0010; PRVDAQ; R&D Project: PO 004; KB0202012; TRN: US1800595
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chu, X., Aschenauer, E. C., Lee, J. H., and Zheng, L. Photon structure studied at an electron ion collider. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.96.074035.
Chu, X., Aschenauer, E. C., Lee, J. H., & Zheng, L. Photon structure studied at an electron ion collider. United States. doi:10.1103/PhysRevD.96.074035.
Chu, X., Aschenauer, E. C., Lee, J. H., and Zheng, L. Mon . "Photon structure studied at an electron ion collider". United States. doi:10.1103/PhysRevD.96.074035. https://www.osti.gov/servlets/purl/1413939.
@article{osti_1413939,
title = {Photon structure studied at an electron ion collider},
author = {Chu, X. and Aschenauer, E. C. and Lee, J. H. and Zheng, L.},
abstractNote = {We report that a future electron ion collider (EIC) will be able to provide collisions of polarized electrons with protons and heavy ions over a wide range of center-of-mass energies (20 GeV to 140 GeV) at an instantaneous luminosity of 1033 - 1034cm-2s-1. One of its promising physics programs is the study of the partonic structure of quasireal photons. Measuring dijets in quasireal photoproduction events, one can effectively access the underlying parton dynamics of the photons. In this paper, we discuss the feasibility of tagging resolved photon processes and measuring the dijet cross section as a function of jet transverse momentum in the range of 0.01 < x$rec\atop{γ}$ < 1 at an EIC. Finally, it will be shown that both unpolarized and polarized parton distributions in the photon can be extracted, and that the flavor of the parton can be tagged at an EIC.},
doi = {10.1103/PhysRevD.96.074035},
journal = {Physical Review D},
number = 7,
volume = 96,
place = {United States},
year = {2017},
month = {10}
}

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Cited by: 6 works
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