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CP-odd observables in neutralino production with transverse e+ and e- beam polarization
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics, High Energy Physics. Högenergifysik. (Teoretisk högenergifysik)
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2006 (English)In: Journal of High Energy Physics, Vol. 01, 170-197 p.Article in journal (Refereed) Published
Abstract [en]

We consider neutralino production and decay e+e-→tilde chi0itilde chi0j, tilde chi0j→tilde chi01fbar f at a linear collider with transverse e+ and e- beam polarization. We propose CP asymmetries by means of the azimuthal distribution of the produced neutralinos and of that of the final leptons, while taking also into account the subsequent decays of the neutralinos. We include the complete spin correlations between production and decay. Our framework is the Minimal Supersymmetric Standard Model with complex parameters. In a numerical study we show that there are good prospects to observe these CP asymmetries at the International Linear Collider and estimate the accuracy expected for the determination of the phases in the neutralino sector.

Place, publisher, year, edition, pages
2006. Vol. 01, 170-197 p.
Keyword [en]
Supersymmetry Phenomenology, e+e- Experiments
Identifiers
URN: urn:nbn:se:uu:diva-77319DOI: doi:10.1088/1126-6708/2006/01/170OAI: oai:DiVA.org:uu-77319DiVA: diva2:105231
Available from: 2006-03-14 Created: 2006-03-14 Last updated: 2011-01-11

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