New contributions to neutralino elastic cross sections from {ital CP} violating phases in the minimal supersymmetric standard model

Journal Article · Mon Mar 01 04:00:00 EST 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.59.055009· OSTI ID:306278

Falk, T ^[1]; Ferstl, A; Olive, K A ^[2]

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1. Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
2. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

We compute the four-Fermi neutralino-quark interaction Lagrangian including contributions from the {ital CP}-violating phases in the MSSM. We find that neutralino-nucleus scattering cross sections relevant for direct detection experiments show a strong dependence on the value of the {ital CP}-violating phase associated with the {mu} parameter {theta}{sub {mu}}. In some cases, for a broad range of non-zero {theta}{sub {mu}}, there are cancellations in the cross sections which reduce the cross section by more than an order of magnitude. In other cases, there may be enhancements as one varies {theta}{sub {mu}}. thinsp {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 306278
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 59; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CP INVARIANCE
CROSS SECTIONS
NONLUMINOUS MATTER
REST MASS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY