Dirac and Majorana heavy neutrinos at LEP II

Details Dirac and Majorana heavy neutrinos at LEP II Dirac and Majorana heavy neutrinos at LEP II

2001-01-09

arxiv.org/abs/hep-ph/0101077v2

Eur.Phys.J.C22:277-281,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 8 figures

Scientific paper

10.1007/s100520100798

The possibility of detecting single heavy Dirac and Majorana neutrinos at LEP II is investigated for heavy neutrino masses in the range $M_N=(\sqrt s/2, \sqrt s)$. We study the process $e^+e^- \longrightarrow \nu_{\ell} \ell q_i \bar q_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.

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