Pair production and correlated decay of heavy Majorana neutrinos in {ital e}{sup +}{ital e}{sup {minus}} collisions
- Institut fuer Theoretische Physik (E), RWTH Aachen, D-52074 Aachen (Germany)
We consider the process {ital e}{sup +}{ital e}{sup {minus}}{r_arrow}{ital N}{sub 1}{ital N}{sub 2}, where {ital N}{sub 1} and {ital N}{sub 2} are heavy Majorana particles, with relative {ital CP} given by {eta}{sub {ital CP}}=+1 or {minus}1, decaying subsequently via {ital N}{sub 1},{ital N}{sub 2}{r_arrow}{ital W}{sup {plus_minus}}{ital e}{sup {minus_plus}}. We derive the energy and angle correlation of the dilepton final state, both for like-sign ({ital e}{sup {minus_plus}}{ital e}{sup {minus_plus}}) and unlike-sign ({ital e}{sup {minus}}{ital e}{sup +}) configurations. Interesting differences are found between the cases {eta}{sub {ital CP}}=+1 and {minus}1. The characteristics of unlike-sign {ital e}{sup +}{ital e}{sup {minus}} dileptons originating from a Majorana pair {ital N}{sub 1}{ital N}{sub 2} are contrasted with those arising from the reaction {ital e}{sup +}{ital e}{sup {minus}}{r_arrow}{ital N{bar N}}{r_arrow}{ital W}{sup +}{ital e}{sup {minus}}{ital W}{sup {minus}}{ital e}{sup +}, where {ital N{bar N}} is a Dirac particle-antiparticle pair. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 286405
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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