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Title: Nuclear structure functions at a future electron-ion collider

Abstract

The quantitative knowledge of heavy nuclei's partonic structure is currently limited to rather large values of momentum fraction x { robust experimental constraints below x ~ 10 -2 at low resolution scale Q 2 are particularly scarce. This is in sharp contrast to the free proton's structure which has been probed in deep inelastic scattering (DIS) measurements down to x ~ 10 -5 at perturbative resolution scales. The construction of an Electron-Ion Collider (EIC) with a possibility to operate with a wide variety of nuclei, will allow one to explore the low-x region in much greater detail. In the present paper we simulate the extraction of the nuclear structure functions from measurements of inclusive and charm reduced cross sections at an EIC. The potential constraints are studied by analyzing simulated data directly in a next-to-leading order global fit of nuclear parton distribution functions based on the recent EPPS16 analysis. A special emphasis is placed on studying the impact an EIC would have on extracting the nuclear gluon PDF, the partonic component most prone to non-linear e ects at low Q 2. In comparison to the current knowledge, we find that the gluon PDF can be measured at an EIC withmore » significantly reduced uncertainties.« less

Authors:
 [1];  [1];  [1];  [2];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Univ. of Jyvaskyla (Finland); Helsinki Inst. of Physics (Finland)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1412759
Alternate Identifier(s):
OSTI ID: 1411805
Report Number(s):
BNL-114732-2017-JA
Journal ID: ISSN 2470-0010; PRVDAQ; R&D Project: PO 004; KB0202012; TRN: US1800351
Grant/Contract Number:
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider

Citation Formats

Aschenauer, E. C., Fazio, S., Lamont, M. A. C., Paukkunen, H., and Zurita, P. Nuclear structure functions at a future electron-ion collider. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.96.114005.
Aschenauer, E. C., Fazio, S., Lamont, M. A. C., Paukkunen, H., & Zurita, P. Nuclear structure functions at a future electron-ion collider. United States. doi:10.1103/PhysRevD.96.114005.
Aschenauer, E. C., Fazio, S., Lamont, M. A. C., Paukkunen, H., and Zurita, P. Thu . "Nuclear structure functions at a future electron-ion collider". United States. doi:10.1103/PhysRevD.96.114005.
@article{osti_1412759,
title = {Nuclear structure functions at a future electron-ion collider},
author = {Aschenauer, E. C. and Fazio, S. and Lamont, M. A. C. and Paukkunen, H. and Zurita, P.},
abstractNote = {The quantitative knowledge of heavy nuclei's partonic structure is currently limited to rather large values of momentum fraction x { robust experimental constraints below x ~ 10-2 at low resolution scale Q2 are particularly scarce. This is in sharp contrast to the free proton's structure which has been probed in deep inelastic scattering (DIS) measurements down to x ~ 10-5 at perturbative resolution scales. The construction of an Electron-Ion Collider (EIC) with a possibility to operate with a wide variety of nuclei, will allow one to explore the low-x region in much greater detail. In the present paper we simulate the extraction of the nuclear structure functions from measurements of inclusive and charm reduced cross sections at an EIC. The potential constraints are studied by analyzing simulated data directly in a next-to-leading order global fit of nuclear parton distribution functions based on the recent EPPS16 analysis. A special emphasis is placed on studying the impact an EIC would have on extracting the nuclear gluon PDF, the partonic component most prone to non-linear e ects at low Q2. In comparison to the current knowledge, we find that the gluon PDF can be measured at an EIC with significantly reduced uncertainties.},
doi = {10.1103/PhysRevD.96.114005},
journal = {Physical Review D},
number = 11,
volume = 96,
place = {United States},
year = {Thu Dec 07 00:00:00 EST 2017},
month = {Thu Dec 07 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 7, 2018
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