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https://dx.doi.org/10.48550/ar...
Article . 1997
License: arXiv Non-Exclusive Distribution
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Angular and Energy Distribution in Neutralino Production and Decay with complete Spin Correlations

Authors: Moortgat-Pick, G.; Fraas, H.;

Angular and Energy Distribution in Neutralino Production and Decay with complete Spin Correlations

Abstract

We study the process e^{-}e^{+} \to \tilde��^0_1\tilde��^0_2 with the subsequent decay \tilde��^0_2 \to \tilde��^0_1 \ell^{+}\ell^{-} taking into account the complete spin correlations between production and decay. We present numerical results for the lepton angular distribution and the distribution of the opening angle between the outgoing leptons for \sqrt{s}=182 GeV. We examine representative mixing scenarios in the MSSM and study the influence of the common scalar mass parameter m_0. For the lepton angular distribution the effect of the spin correlations amounts to up to 20%. The shape of the lepton angular distribution is very sensitive to the mixing in the gaugino sector and to the value of m_0. We find that the opening angle distribution is suitable for distinguishing between Higgsino-like and gaugino-like neutralinos.

7 pages, 8 postscript figures, Latex using appb.sty (included) and epsf.sty, Contribution to the XXI School of Theoretical Physics "Recent Progress in theory and phenomenology of fundamental interactions", Ustron, Poland, September 1997

Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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