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:


C͂±
2 →
C͂±
1 +
Z0

C͂±
2 →
N͂0
2 +
W±

C͂±
1 →
N͂0
1 +
W±

See also

References

  1. ↑ Klapdor-Kleingrothaus, H. V.; Krivosheina, I. V. (1999). Lepton and Baryon Number Violation in Particle Physics, Astrophysics and Cosmology: Proceedings of the First International Symposium on Lepton and Baryon Number Violation (Lepton-Baryon 98), European Centre for Theoretical Studies (ECT), Trento, Italy, 2. CRC Press. p. 469. ISBN 978-1-4822-6863-8. Retrieved 19 June 2020.
  2. ↑ Abazov, V. M.; et al. (2005). "Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons". Physical Review Letters. 95 (15): 151805. arXiv:hep-ex/0504032. Bibcode:2005PhRvL..95o1805A. doi:10.1103/PhysRevLett.95.151805. hdl:10211.3/194402. PMID 16241718. S2CID 11330299.


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