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|  | UNIVERSITY OF BUCHAREST FACULTY OF PHYSICS
  Guest2025-10-31 12:34
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 Conference: Bucharest University Faculty of Physics 2004 Meeting
 
 Section: Nuclear and Elementary Particles Physics
 
 Title:
 Lepton Flavour Violation (LFV) upper limits for LEP2 experiments
 
 Authors:
 T.Angelescu1, Gh.Dumitrescu1, M.Ion1, A.Mihul1, A. Radu2
 
 Affiliation:
 1.Bucharest University, Physics Faculty, Department for Atomic and Nuclear Physics
 2.Institute of Space Sciences, Bucharest-Magurele
 
 E-mail
 
 
 Keywords:
 Lepton Flavour Violation
 
 Abstract:
 LFV is predicted by many models beyond the Standard Model(SM). Though the SM  has been successful  in accounting for essentially all the data  from the laboratory experiments to date, physicists are looking for phenomena beyond the SM. One of these is the lepton flavour violation in electroweak interactions. LEP experiments have established an upper limit for neutrinoless m and t decays and two fermion production at Z0  energy. 
Data obtained at LEP2 are analysed for establishing upper limits at higher energies. The forthcoming results are exciting because there are models which predict LFV at a level attained by LEP and LHC experiment’s sensitivities.
A review of the results both theoretical and experimental is presented along with  the cosmological implications. Using the L3 collaboration Monte Carlo simulations at 189 – 209 GeV  we tried a prediction for the upper limit for LFV in the  e+ e- > t+ t- channel. Selection criteria for taus are presented and selection efficiency is computed.
 
 
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