6533b81ffe1ef96bd1277097

RESEARCH PRODUCT

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

Xue-qian LiXue-qian LiJukka MaalampiXinmin ZhangTai-fu Feng

subject

PhysicsNuclear and High Energy PhysicsParticle physicsGluinoNeutron electric dipole moment010308 nuclear & particles physicsHigh Energy Physics::PhenomenologySuperpartnerSupersymmetry01 natural sciencesStandard ModelQuantum electrodynamics0103 physical sciencesCP violationNeutron010306 general physicsMinimal Supersymmetric Standard Model

description

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.

yearjournalcountryeditionlanguage
2005-03-29Physical Review D
https://doi.org/10.1103/physrevd.71.056005