Speaker
Hanjie Liu
(Brookhaven National Laboratory)
Description
Understanding the nuclear effect is critical to reduce the Parton Distribution Functions (PDFs) uncertainties at large x. Traditionally, the nuclear effect is assumed to be isoscalar. A new study within the JAM global framework by including the MARATHON He3/H3 data implements an isospin dependent off-shell correction. The results suggest an enhanced nuclear effect on the d-quark PDF in the bound proton. This indicates an isovector effect in nuclear structure functions, and demonstrate the power of combining the MARATHON He3/H3 data with a global QCD analysis to provide simultaneous information on PDFs and nuclear effects in A ≤ 3 nuclei.
Primary authors
Andreas Metz
(Physics Department, Temple University, Philadelphia)
Anthony Thomas
(CSSM and CoEPP)
Christopher Cocuzza
(Temple University)
Cynthia Keppel
(Jefferson Lab)
Hanjie Liu
(Brookhaven National Laboratory)
Nobuo Sato
(Jefferson Lab)
Wally Melnitchouk
(Jefferson Lab)
