The nCTEQ PDFs: LHC data and nuclear uncertainties

30 Apr 2014, 17:20
25m
Auditorium (BUW)

Auditorium

BUW

Oral presentation WG1: Structure Functions and Parton Densities WG1: Structure Functions and Parton Densities

Speaker

Dr Aleksander Kusina (Southern Methodist University)

Description

A global analysis of the proton PDF requires a combination of DIS, DY, and jet data. The flavor differentiation depends heavily on the DIS data, all of which is measured on nuclear targets in neutrino scattering; hence the nuclear PDFs (nPDFs) come into play. Additionally, the LHC heavy ion runs with lead beams provide information in an entirely new kinematic regime; here, the W/Z production process is particularly enlightening. We study the compatibility of these data sets in a global nPDF analysis and extract the nuclear correction factors, and discuss the observed tensions between the nuclear correction factors in various data sets. We also quantify the nPDF uncertainty using a set of error PDF functions and show comparisons with recent nPDF determinations.

Primary author

Dr Aleksander Kusina (Southern Methodist University)

Co-authors

Mr Benjamin Clark (SMU) Cynthia Keppel (Jefferson Lab) Prof. Fred Olness (Southern Methodist University) Ingo Schienbein (Universite Joseph Fourier) Dr Ji-Young Yu (SMU) Jorge G. Morfin (Fermilab) Joseph Owens (Florida State University) Karol Kovarik Dr Tomas Jezo (Liverpool)

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