2020 Impact factor 4.590
Particles and Fields
Eur. Phys. J. C 7, 123-134
DOI 10.1007/s100529800957

Chargino pair production in e+e- collisions

S.Y. Choi1 - A. Djouadi2 - H. Dreiner3 - J. Kalinowski4 - P.M. Zerwas5

1 Department of Physics, Yonsei University, Seoul 120-749, Korea
2 Phys. Math. et Théorique, Université Montpellier II, F-34095 Montpellier, France
3 Rutherford Laboratory, Chilton, Didcot OX11 OQX, UK
4 Inst. Theor. Physics, Warsaw University, PL-00681 Warsaw, Poland
5 DESY, Deutsches Elektronen-Synchrotron, D-22603 Hamburg, Germany

Received: 6 June 1998 / Published online: 15 October 1998

Charginos $\chi_1^\pm$ are expected to be the lightest observable supersymmetric particles in many supersymmetric models. We present a procedure which will allow to determine the chargino mixing angles and, subsequently, the fundamental SUSY parameters $M_2, \mu$ and $\tan\beta$ by measurements of the total cross section and the spin correlations in e+e- annihilation to $\chi_1^+ \chi_1^-$ chargino pairs.

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