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Title: nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework

We present the new nCTEQ15 set of nuclear parton distribution functions with uncertainties. This fit extends the CTEQ proton PDFs to include the nuclear dependence using data on nuclei all the way up to 208Pb. The uncertainties are determined using the Hessian method with an optimal rescaling of the eigenvectors to accurately represent the uncertainties for the chosen tolerance criteria. In addition to the Deep Inelastic Scattering (DIS) and Drell-Yan (DY) processes, we also include inclusive pion production data from RHIC to help constrain the nuclear gluon PDF. Here, we investigate the correlation of the data sets with specific nPDF flavor components, and asses the impact of individual experiments. We also provide comparisons of the nCTEQ15 set with recent fits from other groups.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [4] ;  [6] ;  [4] ;  [7] ;  [2] ;  [4]
  1. Westfalische Wilhelms-Univ. Munster, Munster (Germany)
  2. Univ. Grenoble-Alpes, CNRS/IN2P3, Grenoble (France)
  3. Univ. di Milano-Bicocca and INFN, Milano (Italy)
  4. Southern Methodist Univ., Dallas, TX (United States)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  6. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  7. Florida State Univ., Tallahassee, FL (United States)
Publication Date:
OSTI Identifier:
1253003
Report Number(s):
LPSC-15-153; MS-TP-15-11; FERMILAB-PUB--15-375-ND-PPD-T; arXiv:1509.00792
Journal ID: ISSN 2470-0010; 1391522
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 93; Journal Issue: 8; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS