Neutral mass eigenstate formed from superpartners of gauge and Higgs bosons
Not to be confused with neutrino.
Neutralino
Status
Hypothetical
Symbol
N͂0 1, N͂0 2, N͂0 3, N͂0 4
Antiparticle
self (truly neutral particle)
Types
4
Mass
> 300 GeV
Electric charge
0
Spin
1/2
Lepton number
0
Baryon number
0
R parity
−1
In supersymmetry, the neutralino[1]: 71–74 is a hypothetical particle. In the Minimal Supersymmetric Standard Model (MSSM), a popular model of realization of supersymmetry at a low energy, there are four neutralinos that are fermions and are electrically neutral, the lightest of which is stable in an R-parity conserved scenario of MSSM. They are typically labeled N͂0 1 (the lightest), N͂0 2, N͂0 3 and N͂0 4 (the heaviest) although sometimes is also used when is used to refer to charginos.
(In this article, C͂± 1 is used for chargino #1, etc.)
These four states are composites of the bino and the neutral wino (which are the neutral electroweak gauginos), and the neutral higgsinos. As the neutralinos are Majorana fermions, each of them is identical to its antiparticle.
^Cite error: The named reference Martin2010 was invoked but never defined (see the help page).
In supersymmetry, the neutralino: 71–74 is a hypothetical particle. In the Minimal Supersymmetric Standard Model (MSSM), a popular model of realization...
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