TY - JOUR
T1 - A T-odd asymmetry in neutralino production and decay
AU - Bartl, Alfred
AU - Hesselbach, Stefan
AU - Hohenwarter-Sodek, Karl
AU - Fraas, Hans
AU - Moortgat-Pick, Gudrid
N1 - Affiliations: Institut für Theoretische Physik, Universität Wien, A-1090 Vienna, Austria; Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany; IPPP, University of Durham, Durham DH1 3LE, United Kingdom
Adressen: Bartl, A.; Institut für Theoretische Physik; Universität Wien A-1090 Vienna, Austria; email: [email protected]
Source-File: Phy515Scopus.csv
Import aus Scopus: 2-s2.0-23044512526
Importdatum: 18.01.2007 15:25:10
04.12.2007: Datenanforderung 2003 (Import Sachbearbeiter)
04.12.2007: Datenanforderung 2006 (Import Sachbearbeiter)
PY - 2004
Y1 - 2004
N2 - We study CP-violating effects in neutralino production and subsequent decay within the Minimal Supersymmetric Standard Model with complex parameters M 1 and μ. The observable we propose is a T-odd asymmetry based on a triple product in neutralino production e+e- → χ̃i0χ̃i0, i = 1,...,4, with subsequent leptonic three-body decay χ̃i0 → χ̃i0l+l -, l = e, μ, at an e+e- linear collider with √s = 500 GeV and polarised beams. We provide compact analytical formulae for the cross section and the T-odd asymmetry taking into account the complete spin correlations between production and decay. We give numerical predictions for the cross section and the T-odd asymmetry. The asymmetry can go up to 10%. © SISSA/ISAS 2004.
AB - We study CP-violating effects in neutralino production and subsequent decay within the Minimal Supersymmetric Standard Model with complex parameters M 1 and μ. The observable we propose is a T-odd asymmetry based on a triple product in neutralino production e+e- → χ̃i0χ̃i0, i = 1,...,4, with subsequent leptonic three-body decay χ̃i0 → χ̃i0l+l -, l = e, μ, at an e+e- linear collider with √s = 500 GeV and polarised beams. We provide compact analytical formulae for the cross section and the T-odd asymmetry taking into account the complete spin correlations between production and decay. We give numerical predictions for the cross section and the T-odd asymmetry. The asymmetry can go up to 10%. © SISSA/ISAS 2004.
U2 - 10.1088/1126-6708/2004/08/038
DO - 10.1088/1126-6708/2004/08/038
M3 - Article
SN - 1029-8479
VL - 2004
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 8
M1 - 038
ER -