Moments of Isovector Quark Distributions from Lattice QCD [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2002.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: vp : digital, PDF file
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

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access

Free-to-read Unrestricted online access

Summary

We present a complete analysis of the chiral extrapolation of lattice moments of all twist-2 isovector quark distributions, including corrections from N[pi] and [Delta][pi] loops. Even though the [Delta] resonance formally gives rise to higher order non-analytic structure, the coefficients of the higher order terms for the helicity and transversity moments are large and cancel much of the curvature generated by the wave function renormalization. The net effect is that, whereas the unpolarized moments exhibit considerable curvature, the polarized moments show little deviation from linearity as the chiral limit is approached.

Report Numbers

E 1.99:jlab-thy-02-26
E 1.99: doe/er/40150-2079
doe/er/40150-2079
jlab-thy-02-26

Subject(s)

Other Subject(s)

Note

Published through SciTech Connect.
09/01/2002.
"jlab-thy-02-26"
" doe/er/40150-2079"
Phys. Rev. D 66 AC
A.W. Thomas; Wally Melnitchouk; W. Detmold.

Funding Information

AC05-84ER40150

View MARC record | catkey: 13824761