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

Journal Article · · Physical Review D
 [1];  [1];  [1];  [2];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Univ. of Jyvaskyla (Finland); Helsinki Inst. of Physics (Finland)

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.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704
OSTI ID:
1412759
Alternate ID(s):
OSTI ID: 1411805
Report Number(s):
BNL-114732-2017-JA; PRVDAQ; R&D Project: PO 004; KB0202012; TRN: US1800351
Journal Information:
Physical Review D, Vol. 96, Issue 11; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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Cited By (9)

Exposing novel quark and gluon effects in nuclei journal July 2019
Nuclear gluons at RHIC in a multiobservable approach journal July 2019
Towards ultimate parton distributions at the high-luminosity LHC journal November 2018
Nuclear parton distributions from lepton-nucleus scattering and the impact of an electron-ion collider: NNPDF Collaboration journal June 2019
Nuclear parton density functions from dijet photoproduction at the EIC text January 2018
Confronting impact parameter dependent JIMWLK evolution with HERA data text January 2018
Towards Ultimate Parton Distributions at the High-Luminosity LHC text January 2018
Exposing Novel Quark and Gluon Effects in Nuclei text January 2019
Nuclear gluons at RHIC in a multi-observable approach text January 2019

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