Fermion polarization in sfermion decays as a probe of CP phases in the MSSM

Abstract

The longitudinal polarization of fermions (tops and taus) produced in sfermion decays to neutralinos or charginos can be a useful tool for the determination of SUSY parameters. We discuss this fermion polarization in the context of the MSSM with complex parameters. We show that the dependence on CP-violating phases can be large and that the fermion polarization may hence be used as a sensitive probe of CP phases in the MSSM.

19 pages,8 figures, LaTeX, References added Vesion to appear in JHEP. A discussion on two loop contribution to the dipole moments added. Rest of the discussion and conclusions are unaltered. Revised acknowledgement section

References in corpus (19)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• The origin of the matter-antimatter asymmetry
• Electric Dipole Moments in the MSSM at Large tan(beta)
• Collider Probes of the MSSM Higgs Sector with Explicit CP Violation
• Polarisation in Sfermion Decays: Determining \tanβand Trilinear Couplings
• CP asymmetries in neutralino production in e+e- collisions
• CP violation in charged Higgs boson decays into tau and neutrino
• Systematic study of the impact of CP-violating phases of the MSSM on leptonic high-energy observables
• Top Squarks and Bottom Squarks in the MSSM with Complex Parameters
• Tau-Sleptons and Tau-Sneutrino in the MSSM with Complex Parameters
• Analysis of CP Violation in Neutralino Decays to Tau Sleptons
• Impact of CP phases on stop and sbottom searches
• A CP asymmetry in e^+e^- \to χ^0_iχ^0_j \to χ^0_j τstau_k with tau polarization
• T-odd Correlations in the Decay of Scalar Fermions
• CP sensitive observables in e+e- -> neutralino_i neutralino_j and neutralino decay into the Z boson
• Threshold corrections to m_b and the b\bar{b} -> H^0_i production in CP-violating SUSY scenarios
• Cosmological Matter-Antimatter Asymmetry and Antimatter in the Universe
• CP Studies of the Higgs Sector
• Radiative Corrections to SUSY processes in the MSSM

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