Helical Magnetic Fields from Sphaleron Decay and Baryogenesis

Simple item page
dc.creatorCopi, Craig J.
dc.creatorFerrer, Francesc
dc.creatorVachaspati, Tanmay
dc.creatorAchucarro, Ana
dc.date2008-01-23
dc.date2008-02-20
dc.date.accessioned2026-07-07T11:55:29Z
dc.date.available2026-07-07T11:55:29Z
dc.descriptionMany models of baryogenesis rely on anomalous particle physics processes to give baryon number violation. By numerically evolving the electroweak equations on a lattice, we show that baryogenesis in these models creates helical cosmic magnetic fields. After a transitory period, electroweak dynamics is found to conserve the Chern-Simons number and the total electromagnetic helicity. We argue that baryogenesis could lead to magnetic fields of nano-Gauss strength today on astrophysical length scales. In addition to being astrophysically relevant, such helical magnetic fields can provide an independent probe of baryogenesis and CP violation in particle physics.
dc.description4 pages, 1 figure. Added references, fixed typos
dc.identifierhttps://arxiv.org/abs/0801.3653
dc.identifierhttp://arxiv.org/abs/0801.3653
dc.identifierPhys.Rev.Lett.101:171302,2008
dc.identifierdoi:10.1103/PhysRevLett.101.171302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205260
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleHelical Magnetic Fields from Sphaleron Decay and Baryogenesis
dc.typetext

Files

Collections

arXiv