Non-Perturbative Isotropic Multi-Particle Production in Yang--Mills Theory

Details Non-Perturbative Isotropic Multi-Particle Production in Yang--Mills Theory Non-Perturbative Isotropic Multi-Particle Production in Yang--Mills Theory

1993-07-28

arxiv.org/abs/hep-ph/9307356v1

Phys.Rev.D50:266-282,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

RUB preprint 52/93, 39p. Two figures (out of four) included at the end as uudecoded poscript file. Two other figures can be se

Scientific paper

10.1103/PhysRevD.50.266

We use singular Euclidean solutions to find multi-particle production cross sections in field theories. We investigate a family of time-dependent O(3) symmetrical solutions of the Yang--Mills equations, which govern the isotropic high-energy gauge boson production. At low energies our approach reproduces the instanton-induced cross sections. For higher energies we get new results. In particular, we show that the cross section for isotropic multiparticle production remains exponentially small in the running gauge coupling constant. The result applies both to the baryon number violation in the electro-weak theory and to the QCD jet production. We find that the isotropic multi-gluon production cross section falls off approximately as a ninth power of energy but possibly might be observable

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