#### Charged Long-Lived Heavy Lepton MASS LIMITS

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
 Also
PL 42B 136 Search for Heavy Quasistable Leptons
 BARNA 1968
PR 173 1391 A Search for New Particles Produced by High Energy Photons