2020 Impact factor 4.590
Particles and Fields

Eur. Phys. J. C 22, 277-281 (2001)
DOI: 10.1007/s100520100798

Dirac and Majorana heavy neutrinos at LEP II

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

Instituto de Física, Universidade Federal do Rio de Janeiro, 21945-970 Rio de Janeiro, Brazil

(Received: 20 September 2001 / Published online: 12 November - © Springer-Verlag / Società Italiana di Fisica 2001 )

The possibility of detecting single heavy Dirac and/or Majorana neutrinos at LEP II is investigated for heavy neutrino masses in the range MN=(s1/2/2,s1/2). We study the process $e^+e^-
\longrightarrow \nu e^\pm 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.

© Società Italiana di Fisica, Springer-Verlag 2001