Charged Heavy Lepton MASS LIMITS

Charged Long-Lived Heavy Lepton MASS LIMITS

INSPIRE   JSON  (beta) PDGID:
S025MLL
VALUE (GeV) CL% DOCUMENT ID TECN CHG  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$> 574$ 95
CHATRCHYAN
2013AB
 CMS Leptons singlet model
$>102.0$ 95
ABBIENDI
2003L
 OPAL pair produced in ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$>0.1$ 1
ANSORGE
1973B
 HBC - Long-lived
$\text{none 0.55 - 4.5}$ 2
BUSHNIN
1973
CNTR - Long-lived
$\text{none 0.2 - 0.92}$ 3
BARNA
1968
CNTR - Long-lived
$\text{none 0.97 - 1.03}$ 3
BARNA
1968
CNTR - Long-lived
1  ANSORGE 1973B looks for electron pair production and electron-like Bremsstrahlung.
2  BUSHNIN 1973 is SERPUKHOV 70 GeV ${{\mathit p}}$ experiment. Masses assume mean life above $7 \times 10^{-10}$ and $3 \times 10^{-8}$ respectively. Calculated from cross section (see ``Charged Quasi-Stable Lepton Production Differential Cross Section'' below) and 30 GeV muon pair production data.
3  BARNA 1968 is SLAC photoproduction experiment.
References