Reconciling largeCP-violating phases with bounds on the electric dipole moments in the MSSM

2006/05/31 by Seyed Yaser Ayazi, Yasaman Farzan
Physics and Astronomy · #Baryogenesis #Dark Matter and Cosmic Phenomena #Electroweak interaction #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ph

paper · pdf · doi:10.1103/physrevd.74.055008

published as Phys.Rev.D74:055008,2006 · 33 pages, 12 figures

arxiv created 2006/06/09 · openalex publication_date 2006/09/28 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The possibility of cancellation between different contributions to d_e, d_n and d_Hg is reconsidered with special emphasis on the region that is phenomenologically interesting (intermediate values of tan\ensuremathβ and sub-TeV sfermion masses). It is found that in the range favored by electroweak baryogenesis (i.e., |\ensuremathμ|\ensuremath≃M₁ or |\ensuremathμ|\ensuremath≃M₂), sin[\ensuremathθ_\ensuremathμ+\ensuremathθ_M₁]\ensuremath∼1 can be compatible with the EDM bounds even for slepton masses below 500 GeV. Such large values of the phases promise a successful electroweak baryogenesis. The possibility of large CP-odd effects at linear collider is also discussed.

Citations

• Nonuniversal soft supersymmetry breaking and dark matter
• On Effects of the Large Neutrino B-Term on Low Energy Physics
• CP Violation in Production and Decay of Supersymmetric Particles
• The Electric Dipole Moment of the W and Electron in the Standard Model
• Baryogenesis, electric dipole moments and dark matter in the MSSM
• Effects of the neutrino B-term on the Higgs mass parameters and electroweak symmetry breaking
• EDM constraints in supersymmetric theories
• New allowed mSUGRA parameter space from variations of the trilinear scalar couplingA0
• Direct, indirect and collider detection of neutralino dark matter in SUSY models with non-universal Higgs masses
• An improved analysis ofb→sγin supersymmetry
• Solid-state systems for the electron electric dipole moment and other fundamental measurements
• Effects of the neutrinoBterm on slepton mixing and electric dipole moments
• Phases in the gaugino sector: Direct reconstruction of the basic parameters and the impact on neutralino pair production
• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• New Two-Loop Contribution to Electric Dipole Moments in Supersymmetric Theories
• Non-lattice determinations of the light quark masses
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• On anomalous electroweak baryon-number non-conservation in the early universe