TOWARDS A DYNAMICAL SOLUTION OF THE STRONG CP PROBLEM

被引：29

作者：

SCHIERHOLZ, G

机构：

[1] DESY, D-22603 HAMBURG, GERMANY

[2] FORSCHUNGSZENTRUM JULICH, HOCHSTLEISTUNGSRECHENZENTRUM HLRZ, THEORIE ELEMENTARTEILCHEN GRP, D-52425 JULICH, GERMANY

来源：

NUCLEAR PHYSICS B | 1994年

关键词：

D O I：

10.1016/S0920-5632(94)00603-2

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：

One may argue that QCD solves the strong CP problem by itself To test this idea, a lattice simulation suggests itself. In view of the difficulty of such a calculation we have, as a first step, investigated the problem in the CP3 model. The CP3 model is in many respects similar to QCD. In this talk I shall present some first results of our calculation. Among other things it is shown that the model has a first order deconfining phase transition in theta and that the critical value of theta decreases towards zero as beta is taken to infinity. This suggests that theta is tuned to zero in the continuum limit.

引用

收藏

页码：203 / 210

页数：8

相关论文

共 48 条

[1] ROLE OF INSTANTONS IN SCALE-INVARIANT GAUGE-THEORIES [J].

AFFLECK, I .

NUCLEAR PHYSICS B, 1980, 162 (03) :461-477

[2] SOLUTION TO THE STRONG CP PROBLEM WITHOUT AN AXION [J].

BABU, KS ;

MOHAPATRA, RN .

PHYSICAL REVIEW D, 1990, 41 (04) :1286-1291

[3] CP-NONCONSERVING EFFECTS IN QUANTUM CHROMODYNAMICS [J].

BALUNI, V .

PHYSICAL REVIEW D, 1979, 19 (07) :2227-2230

[4] SOLVING THE STRONG CP PROBLEM WITHOUT THE PECCEI-QUINN SYMMETRY [J].

BARR, SM .

PHYSICAL REVIEW LETTERS, 1984, 53 (04) :329-332

[5] STRONG CP PROBLEM AND PARITY [J].

BARR, SM ;

CHANG, D ;

SENJANOVIC, G .

PHYSICAL REVIEW LETTERS, 1991, 67 (20) :2765-2768

[6] PSEUDOPARTICLE SOLUTIONS OF YANG-MILLS EQUATIONS [J].

BELAVIN, AA ;

POLYAKOV, AM ;

SCHWARTZ, AS ;

TYUPKIN, YS .

PHYSICS LETTERS B, 1975, 59 (01) :85-87

[7] COMPUTATION OF QUANTUM FLUCTUATIONS AROUND MULTI-INSTANTON FIELDS FROM EXACT GREENS-FUNCTIONS - CPN-1 CASE [J].

BERG, B ;

LUSCHER, M .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1979, 69 (01) :57-80

[8] THE PARTITION-FUNCTION OF Z(2) AND Z(8) LATTICE GAUGE-THEORY IN 4 DIMENSIONS, A NOVEL-APPROACH TO SIMULATIONS OF LATTICE SYSTEMS [J].

BHANOT, G ;

BITAR, K ;

BLACK, S ;

CARTER, P ;

SALVADOR, R .

PHYSICS LETTERS B, 1987, 187 (3-4) :381-386

[9] ON SOLVING 4-DIMENSIONAL SU(2) GAUGE-THEORY BY NUMERICALLY FINDING ITS PARTITION-FUNCTION [J].

BHANOT, G ;

BITAR, K ;

SALVADOR, R .

PHYSICS LETTERS B, 1987, 188 (02) :246-252

[10] A NEW METHOD FOR THE PARTITION-FUNCTION OF DISCRETE-SYSTEMS WITH APPLICATION TO THE 3D ISING-MODEL [J].

BHANOT, G ;

BLACK, S ;

CARTER, P ;

SALVADOR, R .

PHYSICS LETTERS B, 1987, 183 (3-4) :331-336

← 1 2 3 4 5 →