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Beam Polarization and Spin Correlation Effects in Chargino Production and Decay

G. Moortgat-Pick·A. Bartl·H. Fraas·W. Majerotto
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Abstract

We study chargino production e^+ e^- -> chi^+_1 chi^-_1 and the subsequent leptonic decay chi^-_1\to chi^0_1 e^- nu_e including the complete spin correlations between production and decay. We work out the advantages of polarizing the e^+ and e^- beams. We study in detail the polarized cross sections, the angular distribution and the forward--backward asymmetry of the decay electron. They can be used to determine the sneutrino mass m_{\tildeν_e}.

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G. Moortgat-Pick, A. Bartl, H. Fraas, W. Majerotto. 2000-04-19. Beam Polarization and Spin Correlation Effects in Chargino Production and Decay. https://arxiv.org/abs/hep-ph/0004181

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