Spin Effects in Neutralino Production in $e^+e^-$ Annihilation with polarized beams

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dc.creatorMoortgat-Pick, G.
dc.creatorFraas, H.
dc.creatorBartl, A.
dc.creatorMajerotto, W.
dc.date1998-03-11
dc.date.accessioned2026-07-07T04:03:36Z
dc.date.available2026-07-07T04:03:36Z
dc.descriptionWe study the process e^+ e^- -> chi^0_1 chi^0_2 and the subsequent decay chi^0_2 -> chi^0_1 l^{+} l^{-}$ with polarized beams, including the complete spin correlations of chi^0_2$. We present numerical results for the lepton energy and angular distributions, and for the distribution of the opening angle between the leptons for sqrt{s}=500 GeV. The effects of spin correlations are important in the lepton angular distribution, especially for gaugino-like neutralinos. The opening angle distribution is particularly suitable for distinguishing between higgsino- and gaugino-like neutralinos. The polarized cross sections and lepton angular distributions are very sensitive to the mixing of the neutralinos.
dc.description7 pages, 8 postscript figures, latex using appb.sty (included) and epsf.sty; Contribution to the Cracow Epiphany Conference on Spin Effects in Particle Physics, Cracow, January 9-11 1998
dc.identifierhttps://arxiv.org/abs/hep-ph/9803304
dc.identifierhttp://arxiv.org/abs/hep-ph/9803304
dc.identifierActa Phys.Polon. B29 (1998) 1497-1504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/47725
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSpin Effects in Neutralino Production in $e^+e^-$ Annihilation with polarized beams
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