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

Abstract : 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 208^Pb. 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. Furthermore, 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.
Document type :
Journal articles
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01192579
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, September 3, 2015 - 8:29:17 AM
Last modification on : Tuesday, May 22, 2018 - 9:48:10 PM

Links full text

Identifiers

Collections

IN2P3 | LPSC | CNRS | UGA

Citation

K. Kovarik, A. Kusina, T. Jezo, D.B. Clark, C. Keppel, et al.. nCTEQ15: Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework. Physical Review D, American Physical Society, 2016, 93, pp.085037 ⟨10.1103/PhysRevD.93.085037⟩. ⟨in2p3-01192579⟩

Share

Metrics

Record views

121