Domain wall fermion calculation of nucleon gA/gV

被引：10

作者：

Blum, T ^{[1
]}

Ohta, S

Sasaki, S

机构：

[1] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[2] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2001年 / 94卷

关键词：

D O I：

10.1016/S0920-5632(01)00938-0

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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))(lattice) 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 Deltaq/g(V) and deltaq/g(V).

引用

页码：295 / 298

页数：4

共 11 条

[1]

BLUM T, IN PRESS PHYS REV D

[2] Nucleon form factors and O(a) improvement [J].

Capitani, S ;

Göckeler, M ;

Horsley, R ;

Klaus, B ;

Oelrich, H ;

Perlt, P ;

Petters, D ;

Pleiter, D ;

Rakow, PEL ;

Schierholz, G ;

Schiller, A ;

Stephenson, P .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 :294-296

[3] Towards a lattice calculation of Δq and δq [J].

Capitani, S ;

Göckeler, M ;

Horsley, R ;

Perlt, H ;

Petters, D ;

Pleiter, D ;

Rakow, PEL ;

Schierholz, G ;

Schiller, A ;

Stephenson, P .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 79 :548-550

[4]

DAWSON C, COMMUNICATION

[5] FLAVOR-SINGLET G(A) FROM LATTICE QCD [J].

DONG, SJ ;

LAGAE, JF ;

LIU, KF .

PHYSICAL REVIEW LETTERS, 1995, 75 (11) :2096-2099

[6] PROTON SPIN STRUCTURE FROM LATTICE QCD [J].

FUKUGITA, M ;

KURAMASHI, Y ;

OKAWA, M ;

UKAWA, A .

PHYSICAL REVIEW LETTERS, 1995, 75 (11) :2092-2095

[7] Polarized and unpolarized nucleon structure functions from lattice QCD [J].

Gockeler, M ;

Horsley, R ;

Ilgenfritz, EM ;

Perlt, H ;

Rakow, P ;

Schierholz, G ;

Schiller, A .

PHYSICAL REVIEW D, 1996, 53 (05) :2317-2325

[8] Flavor singlet axial vector coupling of the proton with dynamical Wilson fermions -: art. no. 114502. [J].

Güsken, S ;

Ueberholz, P ;

Viehoff, J ;

Eicker, N ;

Lippert, T ;

Schilling, K ;

Spitz, A ;

Struckmann, T .

PHYSICAL REVIEW D, 1999, 59 (11)

[9] Negative-parity baryon spectroscopy [J].

Lee, FX ;

Leinweber, DB .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 :258-260

[10] NUCLEON AXIAL FORM-FACTOR FROM LATTICE QCD [J].

LIU, KF ;

DONG, SJ ;

DRAPER, T ;

WU, JM ;

WILCOX, W .

PHYSICAL REVIEW D, 1994, 49 (09) :4755-4761

← 1 2 →