2013/08/26 by Yu. A. Simonov
Physics and Astronomy · #Atomic physics #Hadron #High-Energy Particle Collisions Research #Homogeneous #Neutron #Nuclear physics #Particle physics theoretical and experimental studies #Phase space #Physics #Positronium #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Space (punctuation) #Spin (aerodynamics) #Spinor #hep-ph
paper · pdf · doi:10.1103/physrevd.88.093001
published as Phys. Rev. D 88, 093001 (2013) · 18 pages
arxiv created 2013/08/26 · openalex publication_date 2013/11/05 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The processes with oppositely charged spinor particles in initial and/or final states in homogeneous magnetic field B are subject to focusing effects in their relative motion, which yield the amplifying factors in probabilities growing as eB. In addition the increasing energy of some Landau levels influences the phase space. As a result, some processes in the proper spin states can be enlarged as \ensuremath∼\fraceB\ensuremathκ2, where \ensuremathκ2 is the characteristic phase space factor available for perpendicular to B motion. Several examples, including neutron \ensuremathβ decay, positronium decay, and e+e^\ensuremath- pair production, are quantitatively considered.