arXiv:2107.14514·v1·High Energy Physics — Phenomenology
Constraining the nuclear gluon PDF with inclusive hadron production data
P. Duwentäster🇩🇪 · L. A. Husová🇩🇪 · T. Ježo🇩🇪 · M. Klasen🇩🇪 · K. Kovařík🇩🇪 · A. Kusina🇵🇱 · K. F. Muzakka🇩🇪 · F. I. Olness🇺🇸 · I. Schienbein🇫🇷 · J.Y. Yu🇺🇸
Abstract
The nuclear parton distribution functions (nPDFs) of gluons are known to be difficult to determine with fits of deep inelastic scattering (DIS) and Drell-Yan (DY) data alone. Therefore, the nCTEQ15 analysis of nuclear PDFs added inclusive neutral pion production data from RHIC to help in constraining the gluon. In this analysis, we present a new global analysis of nuclear PDFs based on a much larger set of single inclusive light hadron data from RHIC and the LHC. Using our new nCTEQ code (nCTEQ++) with an optimized version of INCNLO we study systematically the limitations of the theory and the impact of the fragmentation function uncertainty.
Comments: 6 pages, 2 figures, Submission to SciPost Physics Proceedings