Dirac and Majorana heavy neutrinos at LEP II

F. M. L. Almeida; Y. A. Coutinho; J. A. Martins Simões; M. A. B. do Vale; S. Wulck

doi:10.1007/s100520100798

paper

Dirac and Majorana heavy neutrinos at LEP II

arXiv:hep-ph/0101077 · doi:10.1007/s100520100798

Abstract

The possibility of detecting single heavy Dirac and Majorana neutrinos at LEP II is investigated for heavy neutrino masses in the range $M_{N} = (s /2, s)$ . We study the process $e^{+} e^{-} ⟶ ν_{ℓ} ℓ q_{i} q ˉ_{j}$ as a clear signature for heavy neutrinos. Numerical estimates for cross sections and distributions for the signal and the background are calculated and a Monte Carlo reconstruction of final state particles after hadronization is presented.

4 pages, 8 figures