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On the large higher order corrections to polarised chargino production

On the large higher order corrections to polarised chargino production
On the large higher order corrections to polarised chargino production
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.
1-44
Diaz, Marco A.
7d26b1a8-0e71-4963-8feb-670dc5904b6a
Ross, Douglas A
eb79bbfe-fb97-4bb3-813c-98f278e5a55f
Diaz, Marco A.
7d26b1a8-0e71-4963-8feb-670dc5904b6a
Ross, Douglas A
eb79bbfe-fb97-4bb3-813c-98f278e5a55f

Diaz, Marco A. and Ross, Douglas A (2002) On the large higher order corrections to polarised chargino production. Pre-print, 1-44.

Record type: Article

Abstract

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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More information

Published date: 22 May 2002
Additional Information: arXiv:hep-ph/0205257v2

Identifiers

Local EPrints ID: 57173
URI: http://eprints.soton.ac.uk/id/eprint/57173
PURE UUID: 158a2d6d-f77f-48f2-8c20-be6fb9e2850a

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Date deposited: 13 Aug 2008
Last modified: 13 Mar 2019 20:34

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