Maximal electric dipole moments of nuclei with enhanced Schiff moments

Ellis, John; Lee, Jae Sik; Pilaftsis, Apostolos

doi:10.1007/jhep02(2011)045

Cited by 39 publications

(36 citation statements)

References 44 publications

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“…The 13 C nucleus is therefore a good candidate to probe the linear combination of d n andḡ (1) πN N . In the analysis of new physics beyond the standard model, there is always some region of the parameter space which escapes the EDM-constraints [114][115][116][117][118]. The measurement of 13 C EDM may therefore be an important piece to determine or discriminate candidates of new physics.…”

Section: Role Of 13 C Edm In the Determination Of Hadron Level Cp mentioning

confidence: 99%

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Electric dipole moment of C13

et al. 2017

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We calculate for the first time the electric dipole moment (EDM) of 13 C generated by the isovector CP-odd pion exchange nuclear force in the α-cluster model, which describes well the structures of low lying states of the 13 C nucleus. The linear dependence of the EDM of 13 C on the neutron EDM and the isovector CP-odd nuclear coupling is found to be d13 C = −0.33dn − 0.0020Ḡ(1) π . The linear enhancement factor of the CP-odd nuclear coupling is smaller than that of the deuteron, due to the difference of the structure between the 1/2 − 1 state and the opposite parity (1/2 + ) states. We clarify the role of the structure played in the enhancement of the EDM. This result provides good guiding principles to search for other nuclei with large enhancement factor. We also mention the role of the EDM of 13 C in determining the new physics beyond the standard model.

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Section: Role Of 13 C Edm In the Determination Of Hadron Level Cp mentioning

confidence: 99%

“…The first typical CP violating model to be inspected is the supersymmetric model [10,[114][115][116][117][119][120][121][122][123]. If the EDM of 13 C can be measured at the level of O(10 −29 )e cm [33], then the mass scale of the supersymmetry breaking can be probed at the TeV scale (see Ref.…”

Section: Prospects To the Discovery Of New Physicsmentioning

confidence: 99%

Electric dipole moment of C13

et al. 2017

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“…In light of this unresolved issue, we take |S Hg | = 0.01 g|ḡ 1 | e fm 3 , remaining agnostic as to the sign (see Ref. [61] for additional discussion). Third, following Ref.…”

Section: B Electric Dipole Momentsmentioning

confidence: 99%

CPviolation in beta decay and electric dipole moments

Tulin

2012

Phys. Rev. D

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The T-odd correlation coefficient D in nuclear β-decay probes CP violation in many theories beyond the Standard Model. We provide an analysis for how large D can be in light of constraints from electric dipole moment (EDM) searches. We argue that the neutron EDM d n currently provides the strongest constraint on D, which is 10 − 10 3 times stronger than current direct limits on D (depending on the model). In particular, contributions to D in leptoquark models (previously regarded as "EDM safe") are more constrained than previously thought. Bounds on D can be weakened only by fine-tuned cancellations or if theoretical uncertainties are larger than estimated in d n . We also study implications for D from mercury and deuteron EDMs.

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“…We take account of the uncertainties in the calculation of the Schiff-moment induced Mercury EDM as follows [51]:…”

Section: II Iii Iv Hgmentioning

confidence: 99%

“…(55) for the scenario specified by Eq. (51). Especially, the |κ| range is divided into 2 regions: 0.01 ≤ |κ| < 0.1 (red filled circle), and 0.1 ≤ |κ| ≤ 0.2 (blue plus) .…”

Section: Exp Tlmentioning

confidence: 99%

Higgs-mediated electric-dipole moments in the next-to-minimal supersymmetric standard model: An application to electroweak baryogenesis

et al. 2011

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We perform a study on the predictions of electric-dipole moments (EDMs) of neutron, Mercury (Hg), Thallium (Tl), deuteron, and Radium (Ra) in the framework of next-tominimal supersymmetric standard model (NMSSM) with CP-violating parameters in the superpotential and soft-supersymmetry-breaking sector. We confine to the case in which only the physical tree-level CP phase (φ ′ λ − φ ′ κ ), associated with the couplings of the singlet terms in the superpotential and with the vacuum-expectation-values (VEVs), takes on a nonzero value. We found that the one-loop contributions from neutralinos are mostly small while the two-loop Higgs-mediated contributions of the Barr-Zee (BZ) type diagrams dominate. We emphasize a scenario motivated by electroweak baryogenesis.

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Maximal electric dipole moments of nuclei with enhanced Schiff moments

Cited by 39 publications

References 44 publications

Electric dipole moment of C13

Electric dipole moment of C13

CPviolation in beta decay and electric dipole moments

Higgs-mediated electric-dipole moments in the next-to-minimal supersymmetric standard model: An application to electroweak baryogenesis

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