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[math]\displaystyle{ \tilde \chi }[/math]±1 (the lightest) and C[math]\displaystyle{ \tilde \chi }[/math]±2 (the heaviest), although sometimes [math]\displaystyle{ \tilde{\chi}_1^\pm }[/math] and [math]\displaystyle{ \tilde{\chi}_2^\pm }[/math] are also used to refer to charginos, when [math]\displaystyle{ \tilde{\chi}_i^0 }[/math] 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[math]\displaystyle{ \tilde \chi }[/math]±2 → C[math]\displaystyle{ \tilde \chi }[/math]±1 + Z⁰

C[math]\displaystyle{ \tilde \chi }[/math]±2 → N͂02 + W^±

C[math]\displaystyle{ \tilde \chi }[/math]±1 → N͂01 + W^±

References

↑ 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.
↑ 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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[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.

Standard Model of particle physics
Elementary particles of the Standard Model
Background Particle physics Standard Model Quantum field theory Gauge theory Spontaneous symmetry breaking Higgs mechanism
Constituents Electroweak interaction Quantum chromodynamics CKM matrix Standard Model mathematics
Limitations Strong CP problem Hierarchy problem Neutrino oscillations Physics beyond the Standard Model
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Chargino

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