# MASS LIMITS for Long-Lived Charged Heavy Fermions INSPIRE search

Limits are for spin 1/2 particles with no color and SU(2)$_{L}$ charge. The electric charge $\mathit Q$ of the particle (in the unit of ${{\mathit e}}$) is therefore equal to its weak hypercharge. Pair production by Drell-Yan like ${{\mathit \gamma}}$ and ${{\mathit Z}}$ exchange is assumed to derive the limits.
VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$>660$ 95 1
 2015 BJ
ATLS $\vert \mathit Q\vert$ = 2
$> 200$ 95 2
 2013 AB
CMS $\vert \mathit Q\vert$ = 1/3
$> 480$ 95 2
 2013 AB
CMS $\vert \mathit Q\vert$ = 2/3
$> 574$ 95 2
 2013 AB
CMS $\vert \mathit Q\vert$ = 1
$> 685$ 95 2
 2013 AB
CMS $\vert \mathit Q\vert$ = 2
$> 140$ 95 3
 2013 AR
CMS $\vert \mathit Q\vert$ = 1/3
$> 310$ 95 3
 2013 AR
CMS $\vert \mathit Q\vert$ = 2/3
1  AAD 2015BJ use 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See paper for limits for $\vert \mathit Q\vert$ = 3, 4, 5, 6.
2  CHATRCHYAN 2013AB use 5.0 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV and 18.8 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See paper for limits for $\vert \mathit Q\vert$ = 3, 4,$\ldots$, 8.
3  CHATRCHYAN 2013AR use 5.0 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV.
References:
EPJ C75 362 Search for Heavy Long-Lived Multi-Charged Particles in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV using the ATLAS Detector
PR D87 092008 Search for Fractionally Charged Particles in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV
JHEP 1307 122 Searches for Long-Lived Charged Particles in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 and 8 TeV