MULTI-INSTANTON-INDUCED BARYON-NUMBER AND LEPTON-NUMBER VIOLATION IN THE ELECTROWEAK THEORY

被引：20

作者：

AOYAMA, H

KIKUCHI, H

机构：

[1] Department of Physics, College of Liberal Arts and Sciences, Kyoto University, Yoshida

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.43.1999

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The DELTA(B) = DELTA(L) not-equal 0 process in the standard electroweak theory is investigated by using the instanton formalism. Fermion zero modes yield a two-body interaction between an instanton and anti-instanton. The expansion in terms of numbers of instantons is proven to be equivalent (at all orders) to the perturbation of a field theory whose vertices are induced by an instanton or an anti-instanton. The resulting cross section satisfies the unitarity bound.

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页码：1999 / 2002

页数：4

相关论文

共 20 条

[1] ON CONSTRAINED INSTANTONS [J].

AFFLECK, I .

NUCLEAR PHYSICS B, 1981, 191 (02) :429-444

[2] ON FERMION NUMBER VIOLATION AT HIGH-ENERGIES [J].

AOKI, K .

MODERN PHYSICS LETTERS A, 1990, 5 (16) :1279-1289

[3]

AOKI K, 1989, UCLA89TEP67 REP

[4] UNITARITY RESTORATION IN THE MULTIINSTANTON PROCESS [J].

AOYAMA, H ;

KIKUCHI, H .

PHYSICS LETTERS B, 1990, 247 (01) :75-80

[5] ANOMALOUS BARYON NUMBER NONCONSERVATION IN PP-COLLISIONS AT 40 TEV [J].

AOYAMA, H ;

GOLDBERG, H .

PHYSICS LETTERS B, 1987, 188 (04) :506-510

[6] THE SPHALERON STRIKES BACK - A RESPONSE TO OBJECTIONS TO THE SPHALERON APPROXIMATION [J].

ARNOLD, P ;

MCLERRAN, L .

PHYSICAL REVIEW D, 1988, 37 (04) :1020-1029

[7] WEAK-INTERACTIONS ARE WEAK AT HIGH-ENERGIES [J].

BANKS, T ;

FARRAR, G ;

DINE, M ;

KARABALI, D ;

SAKITA, B .

NUCLEAR PHYSICS B, 1990, 347 (03) :581-595

[8] HIGH-ENERGY BEHAVIOR OF BARYON-NUMBER AND LEPTON-NUMBER VIOLATING SCATTERING-AMPLITUDES IN THE STANDARD MODEL [J].

ESPINOSA, O .

NUCLEAR PHYSICS B, 1990, 343 (02) :310-340

[9] BREAKDOWN OF PERTURBATION-THEORY AT TREE LEVEL IN THEORIES WITH SCALARS [J].

GOLDBERG, H .

PHYSICS LETTERS B, 1990, 246 (3-4) :445-450

[10] ZERO ENERGY SOLUTIONS OF DIRAC-EQUATION IN AN N-PSEUDOPARTICLE FIELD [J].

GROSSMAN, B .

PHYSICS LETTERS A, 1977, 61 (02) :86-88