Neutralino
= Neutralino
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In the <MSSM>, <electroweak symmetry breaking> mixes the neutral <bino>, <wino> and two neutral <higgsinos> into four neutral <Majorana spinor> mass eigenstates, the <neutralinos>. A neutralino can be the <lightest supersymmetric particle>; with conserved <R-parity> it then provides a stable possible <dark matter> candidate.