First principles calculations of nucleon and pion form factors [electronic resource] : understanding the building blocks of nuclear matter from lattice QCD

Published: Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2005.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators: Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Lattice QCD is an essential complement to the current and anticipated DOE-supported experimental program in hadronic physics. In this poster we address several key questions central to our understanding of the building blocks of nuclear matter, nucleons and pions. Firstly, we describe progress at computing the electromagnetic form factors of the nucleon, describing the distribution of charge and current, before considering the role played by the strange quarks. We then describe the study of transition form factors to the Delta resonance. Finally, we present recent work to determine the pion form factor, complementary to the current JLab experimental determination and providing insight into the approach to asymptotic freedom.

Report Numbers

E 1.99:jlab-thy-05-377
E 1.99: doe/er/40150-3464
doe/er/40150-3464
jlab-thy-05-377

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Published through SciTech Connect.
10/01/2005.
"jlab-thy-05-377"
" doe/er/40150-3464"
SciDAC 2005, 26-30 Jun 2005, San Francisco, California.
Robert Edwards; George Fleming; David Richards; P de Forcrand; Bojan Bistrovic; Wolfram Schroers; John Negele; Andrew Pochinsky; Dru Renner; Konstantinos Orginos; Constantia Alexandrou; Antonios Tsapalis; Philipp Haegler.

Funding Information

AC05-84ER40150

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