Electron EDM as a Sensitive Probe of PeV Scale Physics

Abstract

We give a quantitative analysis of the electric dipole moments as a probe of high scale physics. We focus on the electric dipole moment of the electron since the limit on it is the most stringent. Further, theoretical computations of it are free of QCD uncertainties. The analysis presented here first explores the probe of high scales via electron EDM within MSSM where the contributions to the electric dipole moment (EDM) arise from the chargino and the neutralino exchanges in loops. Here it is shown that the electron EDM can probe mass scales from tens of TeV into the PeV range.The analysis is then extended to include a vectorlike generation which can mix with the three ordinary generations. Here new CP phases arise and it is shown that the electron EDM now has not only a supersymmetric contribution from the exchange of charginos and neutralinos but also a non-supersymmetric contribution from the exchange of W and Z bosons. It is further shown that the interference of the supersymmetric and the non-supersymmetric contribution leads to the remarkable phenomenon where the electron EDM as a function of the slepton mass first falls and become vanishingly small and then rises again as the slepton mass increases This phenomenon arises as a consequence of cancellation between the SUSY and the non-SUSY contribution at low scales while at high scales the SUSY contribution dies out and the EDM is controlled by the non-SUSY contribution alone. The high mass scales that can be probed by the EDM are far in excess of what accelerators will be able to probe. The sensitivity of the EDM to CP phases both in the SUSY and the non-SUSY sectors are also discussed.

arXiv comment28 pages, 7 figures, 2 tables. arXiv admin note: text overlap with arXiv:1403.6448 (Accepted for publication in Physical Review D)

References in corpus (36)

• Planck 2013 results. I. Overview of products and scientific results
• Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
• Electric dipole moments as probes of new physics
• Three-flavour neutrino oscillation update
• Electric Dipole Moments of Nucleons, Nuclei, and Atoms: The Standard Model and Beyond
• Global fit to three neutrino mixing: critical look at present precision
• Proton stability in grand unified theories, in strings, and in branes
• The Neutron and the Electron Electric Dipole Moment in N=1 Supergravity Unification
• Electric Dipole Moments Do Not Require the CP-violating Phases of Supersymmetry To Be Small
• PeV-Scale Supersymmetry
• The Neutron and the Lepton EDMs in MSSM, Large CP violating Phases, and the Cancellation Mechanism
• The Chromoelectric and Purely Gluonic Operator Contributions to the Neutron Electric Dipole Moment in N=1 Supergravity
• Extra vector-like matter and the lightest Higgs scalar boson mass in low-energy supersymmetry
• Higgs Boson Mass, Sparticle Spectrum and Little Hierarchy Problem in Extended MSSM
• More on Electric Dipole Moment Constraints on Phases in the Constrained MSSM
• Measurement of the electron's electric dipole moment using YbF molecules: methods and data analysis
• EDM Signatures of PeV-scale Superpartners
• Probing Supersymmetric Model with Heavy Sfermions Using Leptonic Flavor and CP Violations
• Low Energy Probes of PeV Scale Sfermions
• A Unified Framework for Symmetry Breaking in SO(10)
• Fermion Mass Generation in SO(10) with a Unified Higgs Sector
• The Chromoelectric Dipole Moment of the Top Quark in Models with Vector Like Multiplets
• Variety of SO(10) GUTs with Natural Doublet-Triplet Splitting via the Missing Partner Mechanism
• Testing Supergravity Grand Unification at Future Accelerator and Underground Experiments
• An MSSM Extension with a Mirror Fourth Generation, Neutrino Magnetic Moments and LHC Signatures
• The top quark electric dipole moment in an MSSM extension with vector like multiplets
• Supersymmetry and Vector-like Extra Generation
• Large Tau and Tau Neutrino Electric Dipole Moments in Models with Vector Like Multiplets
• Phases and CP Violation in SUSY
• Yukawa Couplings and Quark and Lepton Masses in an SO(10) Model with a Unified Higgs Sector
• Radiative Decays of Cosmic Background Neutrinos in Extensions of MSSM with a Vector Like Lepton Generation
• Large Neutrino Magnetic Dipole Moments in MSSM Extensions
• Effects of Large CP Phases on the Proton Lifetime in Supersymmetric Unification
• $\tau \to \mu \gamma$ Decay in Extensions with a Vector Like Generation
• On the Possible Observation of Mirror Matter
• A Healthy Electron/Neutron EDM in D3/D7 mu-Split-Like SUSY

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