Impact of beam polarization on CP asymmetries in neutralino pair production

2003/10/01 by A. Bartl, Bartl, A., H. Fraas +7
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0310011

6 pages, 3 figures, contribution to the POWER (polarization at work in energetic reactions) working group

arxiv created 2003/10/01 · arxiv updated 2009/12/01

Abstract

We analyze the dependence of CP-odd asymmetries on longitudinally polarized e+ and e- beams in neutralino production and subsequent leptonic two-body decays. We give numerical examples of the asymmetries and of the cross sections in the Minimal Supersymmetric Standard Model with complex parameters mu, M₁ and A_tau for a collider with sqrts=500 GeV. We show that longitudinally polarized electron and positron beams can enhance considerably both the asymmetries and the cross sections.

Related

• CP asymmetries in neutralino production
• CP violation in production of neutralinos in e+ e- collisions
• CP-sensitive observables in e^ + e^-→χ⁰_i χ⁰_j and neutralino decay into the Z boson
• Exploiting Spin Correlations in Neutralino Production and Decay with Polarized e^- and e⁺ Beams
• Polarization and Spin Effects in Neutralino Production and Decay