Two-loop gluino contributions to the neutron electric dipole moment in the CP-violating minimal supersymmetric standard model

Journal Article · Tue Mar 01 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.056005· OSTI ID:20706148

Feng, T -F; Maalampi, Jukka ^[1]; Xueqian, Li ^[2]; Xinmin, Zhang ^[3]

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1. Department of Physics, 40014 University of Jyvaeskylae (Finland)
2. Department of Physics, Nankai University, Tianjing 300071 (China)
3. Institute of high energy physics, Chinese Academy of Sciences, P.O. Box 918(4), Beijing 100049 (China)

We analyze two-loop gluino corrections to the neutron electric dipole moment (EDM) in the minimal supersymmetry extension of the standard model (MSSM). The dependence of two-loop corrections on the relevant CP violating phases differs from that of the one-loop contributions, and there is a region in the parameter space where the two-loop contributions are comparable with the one-loop contributions. Our numerical results show that the two-loop corrections can be as large as 30% of the one-loop results.

• OSTI ID: 20706148
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 5; Other Information: DOI: 10.1103/PhysRevD.71.056005; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
ELECTRIC DIPOLE MOMENTS
NEUTRONS
SPACE
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY