TY - JOUR

T1 - Instanton-induced amplitudes in a supersymmetric theory

AU - McLerran, L.

AU - Vainshtein, Arkady

AU - Voloshin, Mikhail B

PY - 1990/10/18

Y1 - 1990/10/18

N2 - We consider the effective lagrangian for multiple self-interaction of matter fields induced by instantons in a weakly coupled SU (2) supersymmetric Yang-Mills theory with one matter flavor. By using the supersymmetric instanton calculus, we come to the surprising conclusion that the interaction induced by instantons in the one instanton sector of the theory is strictly local for scalar particle emission, accompanied by fermion number violation. The contribution of instantons arises only from instantons of zero scale size. The restoration of unitarity in high-energy scattering is thus only possible through multi-instanton-antiinstanton effects.

AB - We consider the effective lagrangian for multiple self-interaction of matter fields induced by instantons in a weakly coupled SU (2) supersymmetric Yang-Mills theory with one matter flavor. By using the supersymmetric instanton calculus, we come to the surprising conclusion that the interaction induced by instantons in the one instanton sector of the theory is strictly local for scalar particle emission, accompanied by fermion number violation. The contribution of instantons arises only from instantons of zero scale size. The restoration of unitarity in high-energy scattering is thus only possible through multi-instanton-antiinstanton effects.

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U2 - 10.1016/0370-2693(90)91252-7

DO - 10.1016/0370-2693(90)91252-7

M3 - Article

AN - SCOPUS:13644270252

VL - 249

SP - 261

EP - 265

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 2

ER -