# Charged Long-Lived Heavy Lepton MASS LIMITS INSPIRE search

VALUE (GeV) CL% DOCUMENT ID TECN CHG  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$> 574$ 95
 2013 AB
CMS Leptons singlet model
$>102.0$ 95
 2003 L
OPAL pair produced in ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$>0.1$ 1
 1973 B
HBC - Long-lived
$\text{none 0.55 - 4.5}$ 2
 1973
CNTR - Long-lived
$\text{none 0.2 - 0.92}$ 3
 1968
CNTR - Long-lived
$\text{none 0.97 - 1.03}$ 3
 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:
 CHATRCHYAN 2013AB
JHEP 1307 122 Searches for Long-Lived Charged Particles in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 and 8 TeV
 ABBIENDI 2003L
PL B572 8 Search for Stable and Longlived Massive Charged Particles in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at $\sqrt {s }$ = 130 to 209 GeV
 ANSORGE 1973B
PR D7 26 Study of Electromagnetic Processes at 1 ${\mathrm {GeV/}}\mathit c$ in a Hydrogen Bubble Chamber and Production Rate Limits for New Low Mass Particles
 BUSHNIN 1973
NP B58 476 Search for Heavy Quasistable Leptons
 BARNA 1968
PR 173 1391 A Search for New Particles Produced by High Energy Photons