Chargino

Standard model of particle physics
Large Hadron Collider tunnel at CERN
Background Particle physics Standard Model Quantum field theory Gauge theory Spontaneous symmetry breaking Higgs mechanism
Constituents Electroweak interaction Quantum chromodynamics CKM matrix
Limitations Strong CP problem Hierarchy problem Neutrino oscillations See also: Physics beyond the Standard Model
People Particle Physics   Carl David Anderson   Cecil Frank Powell   Ettore Majorana   Ernest Rutherford   Henry Way Kendall   James Chadwick   J. J. Thomson   Murray Gell-Mann   Paul Dirac   Robert Brout   François Englert   Gerald Guralnik   C. R. Hagen   Tom W. B. Kibble   Peter Higgs   Satyendra Nath Bose Weak - Strong Forces   Enrico Fermi   Hideki Yukawa CP - Violation   Chen-Ning Franklin Yang   Toshihide Maskawa   Makoto Kobayashi V-A Theory   George Sudarshan   Richard Feynman Electro-Weak Theory 20px  Abdus Salam   Gerard 't Hooft   Nicola Cabibbo   Martinus Veltman   Steven Weinberg Asymptotic freedom   David Gross   Frank Wilczek

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. 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 $\tilde{\chi}_2^\pm$ is 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$\tilde \chi$±
2 → C$\tilde \chi$±
1 + Z0

C$\tilde \chi$±
2 → N͂0
2 + W±

C$\tilde \chi$±
1 → N͂0
1 + W±