Electric dipole moment of 
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Yamanaka, Nodoka; Yamada, T.; Hiyama, Emiko; Funaki, Y.

doi:10.1103/physrevc.95.065503

Cited by 27 publications

(23 citation statements)

References 154 publications

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“…The story might however change for heavier nuclei, since the structure of hypernuclei significantly differs from the S = 0 structure due to the relevance of the Pauli exclusion principle [67][68][69][70][71][72][73][74][75][76][77][78][79]. It has actually been shown in the study of 13 C that the nuclear EDM is very sensitive to the change of the nuclear structure in parity transition [80,81]. This aspect is roughly controlled by the energy difference among transitioning states and the overlap of the matrix elements of operators contributing to the EDM.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Pauli exclusion principle in the electric dipole moment of Be9 with |ΔS|=1 interactions

2019

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We calculate the contribution of the |∆S | = 1 K meson exchange process generated by the Cabibbo-Kobayashi-Maskawa matrix to the electric-dipole moment (EDM) of the 9 Be nucleus by considering the αn-αΛ channel coupling. It is found that the effect of the Pauli exclusion principle is not important intermediate S = −1 state, and that the result is consistent with the EDM of 9 Be calculated with the |∆S | = 1 interactions as a perturbation without considering the nucleus-hypernucleus mixing. Our result suggests that the effect of the |∆S | = 1 interactions is neither suppressed nor enhanced in nuclei, if the difference of binding energies between the nucleus and the hypernucleus is small compared with the hyperon-nucleon mass difference.

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Section: Introductionmentioning

confidence: 99%

Effect of the Pauli exclusion principle in the electric dipole moment of Be9 with |ΔS|=1 interactions

2019

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“…For these light nuclei, ab initio calculations are possible, and recent results are almost consistent [116][117][118][119][120]. The investigations further continued for p-shell nuclei, where the cluster model was used [120,121]. The calculation of the many-nucleon wave function is problematic, since it becomes computationally too costly even for small number of nucleons such as the 6 Li nucleus.…”

Section: Introductionmentioning

confidence: 99%

Nuclear electric dipole moment in the cluster model with a triton: Li7 and B11

2019

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We calculate the electric dipole moment (EDM) of the nuclei 7 Li and 11 B in the cluster model with α ( 4 He) and triton ( 3 H) clusters as degrees of freedom. The 7 Li and 11 B nuclei are treated in the two-and three-body problem, respectively, using the Gaussian expansion method, assuming the one meson exchange P, CP-odd nuclear forces. We find that 7 Li and 11 B have larger sensitivity to the CP violation than the deuteron. It is also suggested that the EDMs of 7 Li and 11 B, together with those of 6 Li, 9 Be and the 1/2 + 1 excited state of 13 C, obey an approximate counting rule accounting for the EDM of the cluster and the α − N polarization. We show their sensitivity on the hadronic level CP violation in terms of the chiral effective field theory, and discuss their role in probing new physics beyond the standard model.

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“…The polarization contribution to the EDM of 13 C was evaluated in the four-body cluster model [26]. From our calculation, it is found to be smaller than other nuclei studied.…”

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confidence: 82%

Hadronic EDM and New Physics Beyond Standard Model

Yamanaka¹

2017

Proceedings of the 12th International Conference on Low Energy Antiproton Physics (LEAP2016)

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The nuclear electric dipole moment is a very sensitive probe of CP violation beyond the standard model, and for light nuclei, it can be evaluated accurately using the few-body calculational methods. In this contribution, we present the result of the evaluation of the electric dipole moment of 3-body and 4-body systems using the Gaussian expansion method in the ab initio approach and in the cluster model. We also give the future prospects for the discovery of new physics beyond it within the sensitivity of prepared experiments.

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Electric dipole moment of C13

Cited by 27 publications

References 154 publications

Effect of the Pauli exclusion principle in the electric dipole moment of Be9 with |ΔS|=1 interactions

Effect of the Pauli exclusion principle in the electric dipole moment of Be9 with |ΔS|=1 interactions

Nuclear electric dipole moment in the cluster model with a triton: Li7 and B11

Hadronic EDM and New Physics Beyond Standard Model

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