Chargino

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
C\( {\tilde {\chi }} \)±1 (the lightest) and C\( {\tilde {\chi }} \)±2 (the heaviest), although sometimes \( {\tilde {\chi }}_{1}^{\pm } \) and \( {\tilde {\chi }}_{2}^{\pm } \) are also used to refer to charginos, when \( {\tilde {\chi }}_{i}^{0} \) 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:

C \( {\tilde {\chi }} \) ± 1 + Z0
C \( {\tilde {\chi }} \)± 2 → N͂0 2 + W±
C \( {\tilde {\chi }} \)± 1 → N͂0 1 + W±

References

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.

Search for Charginos Nearly Mass-Degenerate with the Lightest Neutralino: Based on a Disappearing-Track Signature in pp Collisions at √s = 8 TeV (Springer Theses) 1st ed. 2016 Edition, by Shingo Kazama (Author) Format: Kindle Edition

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. PMID 16241718. Lay summary.

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.arXiv:1307.5073. Bibcode:2013JHEP...10..033A. doi:10.1007/JHEP10(2013)033.

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Particles in physics
Elementary
Fermions
Quarks

Up (quark antiquark) Down (quark antiquark) Charm (quark antiquark) Strange (quark antiquark) Top (quark antiquark) Bottom (quark antiquark)

Leptons

Electron Positron Muon Antimuon Tau Antitau Electron neutrino Electron antineutrino Muon neutrino Muon antineutrino Tau neutrino Tau antineutrino

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Scalar

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Hypothetical
Superpartners
Gauginos