1996/09/23 by Rachel Jeannerot, R. Jeannerot · 4 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Fractal and DNA sequence analysis #Particle physics theoretical and experimental studies #RNA and protein synthesis mechanisms #hep-ph
paper · pdf · doi:10.1103/physrevlett.77.3292
published as Phys.Rev.Lett. 77 (1996) 3292-3295 · 9 pages, uses Revtex, includes one figure
arxiv created 1996/09/23 · openalex publication_date 1996/10/14 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Unified theories containing a U(1)_B\ensuremath-L gauge symmetry predict heavy Majorana right-handed neutrinos. In such theories, cosmic strings may form at the B\ensuremath-L breaking scale. If the Higgs field forming the strings is also the Higgs field which gives mass to the right-handed neutrinos, there are right-handed neutrinos trapped as transverse zero modes in the core of the strings. When cosmic string loops decay, they release these neutrinos. This is an out-of-equilibrium process. The released neutrinos acquire heavy Majorana mass and decay into massless leptons and electroweak Higgs particles to produce a lepton asymmetry, which is converted into a baryon asymmetry via sphaleron transitions.