In particle physics, the chargino is a hypothetical particle which refers to the mass eigenstates of a charged superpartner, i.e. any new electrically charged fermion (with spin 1/2) predicted by supersymmetry.[1][2] They are linear combinations of the charged wino and charged higgsinos. There are two charginos that are fermions and are electrically charged, which are typically labeled C͂± 1 (the lightest) and C͂± 2 (the heaviest), although sometimes and are also used to refer to charginos, when is used to refer to neutralinos. The heavier chargino can decay through the neutral Z boson to the lighter chargino. Both can decay through a charged W boson to a neutralino:
Alloul, Adam; Frank, Mariana; Fuks, Benjamin; De Traubenberg, Michel Rausch (2013). "Chargino and neutralino production at the Large Hadron Collider in left-right supersymmetric models". Journal of High Energy Physics. 2013 (10): 033. arXiv:1307.5073. Bibcode:2013JHEP...10..033A. doi:10.1007/JHEP10(2013)033. S2CID53978829.
