Chromoelectric Dipole Moments of Quarks in MSSM Extensions

Abstract

An analysis is given of the chromoelectric dipole moment of quarks and of the neutron in an MSSM extension where the matter sector contains an extra vectorlike generation of quarks and mirror quarks. The analysis includes contributions to the CEDM from the exchange of the $W$ and the $Z$ bosons, from the exchange of charginos and neutralinos and the gluino. Their contribution to the EDM of quarks is investigated. The interference between the MSSM sector and the new sector with vectorlike quarks is investigated. It is shown that inclusion of the vectorlike quarks can modify the quark EDMs in a significant way. Further, this interference also provides a probe of the vectorlike quark sector. These results are of interest as in the future measurements on the neutron EDM could see an improvement up to two orders of magnitude over the current experimental limits and provide a window to new physics beyond the standard model.

37 pages, 3 tables, 11 figures. arXiv admin note: text overlap with arXiv:1503.06850. Accepted for publication in Physical Review D

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• Chromomagnetic and chromoelectric dipole moments of quarks in the reduced 331 model
• Flavor violating leptonic decays of the Higgs boson
• The Higgs boson mass constraint and the CP even-CP odd Higgs boson mixing in an MSSM extension
• Flavor violating top decays and flavor violating quark decays of the Higgs boson