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26 April 2024 |
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CP observables with spin-spin correlations in chargino production | | A. Bartl
; K. Hohenwarter-Sodek
; T. Kernreiter
; O. Kittel
; M. Terwort
; | | Date: |
25 Feb 2008 | | Abstract: | We study the CP-violating terms of the spin-spin correlations in chargino
production e+e- -> chi^+/-_1 chi^-/+_2, and their subsequent two-body decays
into sneutrinos plus leptons. We propose novel CP-sensitive observables with
the help of T-odd products of the spin-spin terms. These terms depend on the
polarizations of both charginos, with one polarization perpendicular to the
production plane. We identify two classes of CP-sensitive observables; one
requires the reconstruction of the production plane, the other not. Our
framework is the Minimal Supersymmetric Standard Model with complex parameters.
We also calculate the statistical significances to which our CP-sensitive
observables can be determined to be non-zero. | | Source: | arXiv, 0802.3592 | | Services: | Forum | Review | PDF | Favorites | |
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