Influence of CP and CPT on production and decay of Dirac and Majorana fermions

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dc.creatorMoortgat--Pick, Gudrid
dc.creatorFraas, Hans
dc.date2002-04-29
dc.date.accessioned2026-07-07T12:26:21Z
dc.date.available2026-07-07T12:26:21Z
dc.descriptionThe consequences of CP and CPT invariance for production and subsequent decay of Dirac and Majorana fermions in polarized fermion--antifermion annihilation are analytically studied. We derive general symmetry relations for the production spin density matrix and for the three--particle decay matrices and obtain constraints for the polarization and the spin--spin correlations of Dirac and Majorana fermions. We prove that only for Majorana fermions the energy and opening angle distribution factorizes exactly into contributions from production and decay if CP is conserved.
dc.description21 pages, 3 eps figures, to be published in EPJ C
dc.identifierhttps://arxiv.org/abs/hep-ph/0204333
dc.identifierhttp://arxiv.org/abs/hep-ph/0204333
dc.identifierEur.Phys.J.C25:189-197,2002
dc.identifierdoi:10.1007/s10052-002-0979-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214855
dc.subjectHigh Energy Physics - Phenomenology
dc.titleInfluence of CP and CPT on production and decay of Dirac and Majorana fermions
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