On the Large Higher Order Corrections to Polarised Chargino Production

Details On the Large Higher Order Corrections to Polarised Chargino Production On the Large Higher Order Corrections to Polarised Chargino Production

2002-05-22

arxiv.org/abs/hep-ph/0205257v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

42 pages, including 10 figures. A comparison with a previous calculation and comments to clarify the renormalization scheme we

Scientific paper

We calculate the radiative corrections to helicity amplitudes for chargino production in electron-positron collisions. We include all weak self-energy, triangle, and box diagrams, and find that the three are important and should be included. We present results in the form of differential cross-sections for four supersymmetry benchmark models, and find usually large corrections and in some cases huge corrections. We conclude that in order to extract the underlying parameters of the chargino sector from collider data taken at a future Linear Collider, a complete theoretical one--loop production cross-section should be used.

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