Scalar Top Quark as the Next-to-Lightest Supersymmetric Particle

Details Scalar Top Quark as the Next-to-Lightest Supersymmetric Particle Scalar Top Quark as the Next-to-Lightest Supersymmetric Particle

1999-09-28

arxiv.org/abs/hep-ph/9909536v2

Phys.Rev. D61 (2000) 055004

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, LaTeX, 7 figures, minor typographical corrections

Scientific paper

10.1103/PhysRevD.61.055004

We study phenomenologically the scenario in which the scalar top quark is lighter than any other standard supersymmetric partner and also lighter than the top quark, so that it decays to the gravitino via stop -> W^+ b G. In this case, scalar top quark events would seem to be very difficult to separate from top quark pair production. However, we show that, even at a hadron collider, it is possible to distinguish these two reactions. We show also that the longitudinal polarization of the final $W^+$ gives insight into the scalar top and wino/Higgsino mixing parameters.

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