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 Cχ~±1 (the lightest) and Cχ~±2 (the heaviest), although sometimes χ~1± and χ~2± are also used to refer to charginos, when χ~i0 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:

Cχ~±2 -> Cχ~±1 \+ Z0
Cχ~±2 -> N͂02 \+ W±
Cχ~±1 -> N͂01 \+ W±

## See also

* List of hypothetical particles
* Weakly interacting slender particle

## References

1. ↑ Klapdor-Kleingrothaus, H. V.; Krivosheina, I. V. (1999) (in en). 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. https://books.google.com/books?id=7WG1DwAAQBAJ&pg=PA469. Retrieved 19 June 2020.
2. ↑ Abazov, V. M. (2005). "Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons". Physical Review Letters 95 (15): 151805. doi:10.1103/PhysRevLett.95.151805. PMID 16241718. Bibcode: 2005PhRvL..95o1805A. http://www-d0.fnal.gov/Run2Physics/WWW/results/final/NP/N05A/N05A.htm.

## External links

* http://lepsusy.web.cern.ch/lepsusy/www/inoslowdmsummer02/charginolowdm_pub.html
* 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. doi:10.1007/JHEP10(2013)033. Bibcode: 2013JHEP...10..033A.

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