Matrix elements of twist-2 operators in quenched chiral perturbation theory

被引：21

作者：

Chen, JW ^{[1
]}

Savage, MJ

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[2] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

NUCLEAR PHYSICS A | 2002年 / 707卷 / 3-4期

关键词：

D O I：

10.1016/S0375-9474(02)00994-6

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We compute the leading quark mass dependence of the matrix elements of isovector twist-2 operators between octet baryon states in quenched QCD using quenched chiral perturbation theory. There are contributions of the form m(q) log m(q) and m(q), in analogy with QCD, but there are also contributions of the form 109 mq from hairpin interactions. The nucleon does not receive such hairpin contributions. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：452 / 468

页数：17

共 41 条

[1] Chiral corrections to matrix elements of twist-2 operators [J].

Arndt, D ;

Savage, MJ .

NUCLEAR PHYSICS A, 2002, 697 (1-2) :429-439

[2] PARTIALLY QUENCHED GAUGE-THEORIES AND AN APPLICATION TO STAGGERED FERMIONS [J].

BERNARD, CW ;

GOLTERMAN, MFL .

PHYSICAL REVIEW D, 1994, 49 (01) :486-494

[3] CHIRAL PERTURBATION-THEORY FOR THE QUENCHED APPROXIMATION OF QCD [J].

BERNARD, CW ;

GOLTERMAN, MFL .

PHYSICAL REVIEW D, 1992, 46 (02) :853-857

[4]

BEST C, HEPPH9706502

[5] STRONG AND ELECTROMAGNETIC DECAYS OF THE BARYON DECUPLET [J].

BUTLER, MN ;

SAVAGE, MJ ;

SPRINGER, RP .

NUCLEAR PHYSICS B, 1993, 399 (01) :69-85

[6]

CHEN J, HEPPH0105197

[7] Constructing parton convolution in effective field theory [J].

Chen, JW ;

Ji, XD .

PHYSICAL REVIEW LETTERS, 2001, 87 (15) :152002-152002

[8]

CHEN JW, HEPLAT0111050

[9]

CHEN JW, HEPPH0105296

[10] Quenched chiral perturbation theory to one loop [J].

Colangelo, G ;

Pallante, E .

NUCLEAR PHYSICS B, 1998, 520 (1-2) :433-468

← 1 2 3 4 5 →