ar X iv : h ep - l at / 0 01 10 11 v 1 1 N ov 2 00 0 1 Domain wall fermion calculation of nucleon

نویسندگان

  • Tom Blum
  • Shigemi Ohta
  • Shoichi Sasaki
چکیده

We present a preliminary domain-wall fermion lattice-QCD calculation of isovector vector and axial charges, g V and g A , of the nucleon. Since the lattice renormalizations, Z V and Z A , of the currents are identical with DWF, the lattice ratio (g A /g V ) directly yields the continuum value. Indeed Z V determined from the matrix element of the vector current agrees closely with Z A from a non-perturbative renormalization study of quark bilinears. We also obtain spin related quantities ∆q/g V and δq/g V .

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تاریخ انتشار 2000