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Nuclear Theory·nucl-th

Wednesday·April 11, 2018

8 papers—6 primary·2 cross-listed

All8Primary6Cross-lists2
  1. 07

    [Submitted on 8 Apr 2018] (cross-list from hep-ph)

    Momentum Sum Rule Violation in QCD at High Energy Colliders and Confinement

    Gouranga C Nayak🇺🇸

    Momentum sum rule in QCD is widely used at high energy colliders. Although the exact form of the confinement potential energy is not known but the confinement potential energy at large distance can not rise slower than . In this paper we find that if the confinement potential energy at large distance rises linearly with (or faster) then the momentum sum rule in QCD is violated at the high energy colliders if we consider the hadron size as infinite. For finite size hadron we find that the momentum sum rule in QCD is violated at the high energy colliders for any form of the confinement potential energy.

    Comments:
    2 New Sections, 13 pages latex
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Lattice (hep-lat); Nuclear Theory (nucl-th)
    arXiv:
    1804.02712 [pdf]
    5 citations
  2. 08

    [Submitted on 10 Apr 2018] (cross-list from hep-ph)

    Dilepton photoproduction on a deuteron target

    Carl E. Carlson (William and Mary)🇺🇸 · Vladyslav Pauk🇩🇪 · Marc Vanderhaeghen (Johannes Gutenberg-University, Mainz)🇩🇪

    We investigate the sensitivity of the cross section for lepton pair production off a deuteron target, , to the deuteron charge radius. We show that for small momentum transfers the Bethe-Heitler process dominates, and that it is sensitive to the charge radius such that a cross section ratio measurement of about relative accuracy could give a deuteron charge radius more accurate that the current electron scattering value and sufficiently accurate to distinguish between the electronic and muonic atomic values.

    Comments:
    4 pages, 5 figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1804.03501 [pdf]
    PLB(2019)·5 citations

Affiliations

first authorsco-authorsvia INSPIRE