HOW TO PROBE THE SCALE OF (QBARQ) IN CHIRAL PERTURBATION-THEORY

被引：82

作者：

FUCHS, NH

SAZDJIAN, H

STERN, J

机构：

[1] PURDUE UNIV,DEPT PHYS,W LAFAYETTE,IN 47907

[2] UNIV PARIS 06,F-75230 PARIS 05,FRANCE

来源：

PHYSICS LETTERS B | 1991年 / 269卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(91)91472-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Following experimental indications that <qqBAR> might be ten times smaller than usually believed, we show how to incorporate this possibility into chiral perturbation theory. The best probe of the scale of <qqBAR> turns out to be low-energy pi-pi scattering.

引用

收藏

页码：183 / 188

页数：6

相关论文

共 27 条

[1] DETERMINATION OF THE PI-NN COUPLING-CONSTANT FROM ELASTIC PION-NUCLEON SCATTERING DATA [J].

ARNDT, RA ;

LI, ZJ ;

ROPER, LD ;

WORKMAN, RL .

PHYSICAL REVIEW LETTERS, 1990, 65 (02) :157-158

[2]

DONOGHUE JF, 1989, ANNU REV NUCL PART S, V39, P1

[3] PROPERTIES OF AXIAL-VECTOR-CURRENT DIVERGENCES IN CONSTITUENT-QUARK BASIS [J].

FUCHS, NH .

PHYSICAL REVIEW D, 1977, 16 (05) :1535-1541

[4] IS THE QUARK MASS RATIO MS/M AS LARGE AS 25 [J].

FUCHS, NH ;

SAZDJIAN, H ;

STERN, J .

PHYSICS LETTERS B, 1990, 238 (2-4) :380-386

[5]

FUCHS NH, IN PRESS

[6] SIGMA-TERM UPDATE [J].

GASSER, J ;

LEUTWYLER, H ;

SAINIO, ME .

PHYSICS LETTERS B, 1991, 253 (1-2) :252-259

[7] QUARK MASSES [J].

GASSER, J ;

LEUTWYLER, H .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1982, 87 (03) :77-169

[8] FORM-FACTOR OF THE SIGMA-TERM [J].

GASSER, J ;

LEUTWYLER, H ;

SAINIO, ME .

PHYSICS LETTERS B, 1991, 253 (1-2) :260-264

[9] CHIRAL PERTURBATION-THEORY - EXPANSIONS IN THE MASS OF THE STRANGE QUARK [J].

GASSER, J ;

LEUTWYLER, H .

NUCLEAR PHYSICS B, 1985, 250 (03) :465-516

[10] CHIRAL PERTURBATION-THEORY TO ONE LOOP [J].

GASSER, J ;

LEUTWYLER, H .

ANNALS OF PHYSICS, 1984, 158 (01) :142-210