Chargino

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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:

Contents


C͂±
2

C͂±
1
+
Z0

C͂±
2

N͂0
2
+
W±

C͂±
1

N͂0
1
+
W±

See also

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although sometimes is also used when is used to refer to charginos.

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W±
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Z0
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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.