Review of the semiclassical formalism for multiparticle production at high energies

Publication date: Available online 3 July 2019Source: Physics ReportsAuthor(s): Valentin V. Khoze, Joey ReinessAbstractThese notes provide a comprehensive review of the semiclassical approach for calculating multiparticle production rates for initial states with few particles at very high energies. In this work we concentrate on a scalar field theory with a mass gap. Specifically, we look at a weakly-coupled theory in the high-energy limit, where the number of particles in the final state scales with energy, n∼E→∞, and the coupling λ→0 with nλ held fixed. In this regime, the semiclasical approach allows us to calculate multiparticle rates non-perturbatively.

Source: Physics Reports - July 4, 2019 Category: Physics Source Type: research