Nuclear parton distributions from the nCTEQ group
A. Kusina
TL;DR
The paper introduces the nCTEQ15 nuclear parton distribution functions, incorporating PDF uncertainties and pion production data, and compares these results with other groups while assessing the impact of LHC pPb W/Z data.
Contribution
It presents the nCTEQ15 nuclear PDFs with uncertainty estimates and includes new data constraints from RHIC and LHC pPb collisions.
Findings
nCTEQ15 PDFs include Hessian uncertainties
Pion production data constrains gluon PDFs
LHC pPb W/Z data impacts the PDFs
Abstract
We present the nCTEQ15 global analysis of nuclear parton distribution functions (nPDFs). The main addition to the previous nCTEQ PDFs is the introduction of PDF uncertainties based on the Hessian method. Another important improvement is the inclusion of pion production data from RHIC giving us a handle to constrain gluon PDF. In this presentation we briefly discuss the framework of our analysis and concentrate on the comparison of our results with those of other groups. Additionally we show a first estimate of the impact of the LHC pPb W/Z boson production data on the presented nCTEQ15 PDFs.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions