nLab
gaugino

Contents

Context

Fields and quanta

fields and particles in particle physics

and in the standard model of particle physics:

force field gauge bosons

scalar bosons

matter field fermions (spinors, Dirac fields)

flavors of fundamental fermions in the
standard model of particle physics:
generation of fermions1st generation2nd generation3d generation
quarks (qq)
up-typeup quark (uu)charm quark (cc)top quark (tt)
down-typedown quark (dd)strange quark (ss)bottom quark (bb)
leptons
chargedelectronmuontauon
neutralelectron neutrinomuon neutrinotau neutrino
bound states:
mesonslight mesons:
pion (udu d)
ρ-meson (udu d)
ω-meson (udu d)
f1-meson
a1-meson
strange-mesons:
ϕ-meson (ss¯s \bar s),
kaon, K*-meson (usu s, dsd s)
eta-meson (uu+dd+ssu u + d d + s s)

charmed heavy mesons:
D-meson (uc u c, dcd c, scs c)
J/ψ-meson (cc¯c \bar c)
bottom heavy mesons:
B-meson (qbq b)
ϒ-meson (bb¯b \bar b)
baryonsnucleons:
proton (uud)(u u d)
neutron (udd)(u d d)

(also: antiparticles)

effective particles

hadrons (bound states of the above quarks)

solitons

in grand unified theory

minimally extended supersymmetric standard model

superpartners

bosinos:

sfermions:

dark matter candidates

Exotica

auxiliary fields

Super-Geometry

Contents

Idea

In quantum field theory the term gaugino denotes a field that is a superpartner of a gauge boson. This appears in super Yang-Mills theory. For instance the partner of a gluon in the MSSM is called a gluino, and so on.

In terms of Chern-Weil theory/differential cohomology we have that

Experiment

Experimental exclusion bounds of gluino rest masses due to the LHC experiment excludes gluinos/squarks of mass below about 3-4 TeV (Particle Data Group Review 17, figure 113.2 and 113.9):

LHCSuperpartnerMassExclusion2017.png

References

Theoretical discussion includes

  • F. Gieres, Geometry of Supersymmetric Gauge Theories: Including an Introduction to BRS Differential Algebras and Anomalies Springer Lecture Notes in Physics 302 (1998)

Experimental exclusion bounds are discussed iin

See also

Last revised on August 15, 2021 at 05:42:40. See the history of this page for a list of all contributions to it.