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Neutralino-Nucleus Elastic Cross Section in the Minimal Supersymmetric Standard Model with Explicit CP Violation | | S.Y. Choi
; Seong Chan Park
; J.H. Jang
; H.S. Song
; | | Date: |
29 Dec 2000 | | Journal: | Phys.Rev. D64 (2001) 015006 | | Subject: | hep-ph | | Affiliation: | Chonbuk Univ.), Seong Chan Park (SNU), J.H. Jang (Chonbuk Univ.), and H.S. Song (SNU | | Abstract: | We study the elastic scattering of the lightest neutralino with a nucleus in the framework of the minimal supersymmetric standard model (MSSM) with explicit flavor preserving CP violation, including the one-loop CP-violating neutral Higgs-boson mixing effects induced dominantly by the CP phases in the top and bottom (s)quark sectors. We construct the most general form of the effective Lagrangian for the neutralino-nucleus scattering in the limit of vanishing momentum transfers and then we perform a comprehensive analysis of the effects of the complex CP phases on the mass spectra of the lightest neutralino, neutral Higgs bosons and top squarks, and on the the spin-dependent and spin-independent neutralino-nucleus scattering cross section for three neucleus targets F, Si and Ge. The CP phases can reduce or enhance the neutralino-nucleus cross sections significantly, depending on the values of the real parameters in the MSSM. | | Source: | arXiv, hep-ph/0012370 | | Services: | Forum | Review | PDF | Favorites | |
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