CP sensitive observables in chargino production and decay into a W boson

Abstract

We study CP sensitive observables in chargino production in electron-positron collisions with subsequent two-body decay of one chargino into a W boson. We identify the CP odd elements of the W boson density matrix and propose CP sensitive triple-product asymmetries of the chargino decay products. We calculate the density-matrix elements, the CP asymmetries and the cross sections in the Minimal Supersymmetric Standard Model with complex parameters μand M_1 for an e+ e- linear collider with \sqrt{s} = 800 GeV and longitudinally polarized beams. The asymmetries can reach 7% and we discuss the feasibility of measuring these asymmetries.

23 pages, 7 figures

References in corpus (9)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Systematic study of the impact of CP-violating phases of the MSSM on leptonic high-energy observables
• A T-odd asymmetry in neutralino production and decay
• Analysis of CP Violation in Neutralino Decays to Tau Sleptons
• A CP asymmetry in e^+e^- \to χ^0_iχ^0_j \to χ^0_j τstau_k with tau polarization
• CP violation in X_1^0 X_2^0 production at a linear collider
• CP sensitive observables in chargino production with transverse $e^{\pm }$ beam polarization
• CP violation in chargino production and decay into sneutrino
• CP sensitive observables in e+e- -> neutralino_i neutralino_j and neutralino decay into the Z boson

Cited by in corpus (21)

• The role of polarized positrons and electrons in revealing fundamental interactions at the Linear Collider
• Probing SUSY CP Violation in Two-Body Stop Decays at the LHC
• CP asymmetries in scalar bottom quark decays
• CP asymmetries in chargino production and decay: the three-body decay case
• CP violation at one loop in the polarization-independent chargino production in e+e- collisions
• Selectron production at an e-e- linear collider with transversely polarized beams
• CP observables with spin-spin correlations in chargino production
• CP violation in SUSY
• Normal tau polarisation as a sensitive probe of CP violation in chargino decay
• Collider searches and cosmology in the MSSM with heavy scalars
• Measurement of CP asymmetries in neutralino production at the ILC
• Testing the CP-violating MSSM in stau decays at the LHC and ILC
• CP asymmetries in the supersymmetric trilepton signal at the LHC
• SUSY CP phases and asymmetries at colliders
• CP-sensitive spin-spin correlations in neutralino production at the ILC
• CP Violation in Three-Body Chargino Decays
• CP-Odd Phase Effects in a Left-Right Symmetric Chargino Sector
• Effects of CP-violating phases in supersymmetry
• CP violation in the chargino/neutralino sector of the MSSM
• CP violation in chargino production in e+e- collisions
• Charged right-handed Higgsino field contribution to the chargino mass spectrum and inverse parameter problem in Left-Right Supersymmetric Models