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相关论文: Electric Dipole Moment in the Split Supersymmetry …

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The ACME collaboration has recently reported a new bound on the electric dipole moment (EDM) of the electron, $|d_e|< 1.1 \times 10^{-29}\, {\rm e\cdot cm}$ at 90$\%$ confidence level, reaching an unprecedented accuracy level. This can…

高能物理 - 唯象学 · 物理学 2021-11-05 Giuliano Panico , Alex Pomarol , Marc Riembau

We present the contributions to electric dipole moments (EDMs) induced by the Yukawa couplings of an additional electroweak doublet of colour-octet scalars. The full set of one-loop diagrams and the enhanced higher-order effects from…

高能物理 - 唯象学 · 物理学 2022-05-03 Hector Gisbert , Víctor Miralles , Joan Ruiz-Vidal

We calculate the electric dipole moments (EDMs) of three-nucleon systems at leading order in pionless effective field theory. The one-body contributions that arise from permanent proton and neutron EDMs and the two-body contributions that…

We study the effect of the "chromo-electric" dipole moment on the electric dipole moment(EDM) of the neutron in the two Higgs doublet model. We systematically investigate the Weinberg's operator $O_{3g}=GG\t G$ and the operator $O_{qg}=\bar…

高能物理 - 唯象学 · 物理学 2010-11-01 Tkemi Hayashi , Yoshio Koide , Masahisa Matsuda , Morimitsu Tanimoto

We calculate the two-loop contributions to the electric dipole moments of the electron and the neutron mediated by charged Higgs in a generic supersymmetric theories. The new contributions are originated from the potential CP violation in…

高能物理 - 唯象学 · 物理学 2009-09-01 Darwin Chang , We-Fu Chang , Wai-Yee Keung

We report the first fully general numerical calculation of the neutron and electron dipole moments, including the seven significant phases. We find that there are major regions in the parameter space where none of the phases are required to…

高能物理 - 唯象学 · 物理学 2016-08-25 Michal Brhlik , Gerald J. Good , G. L. Kane

We analyze the effects of CP-violating phases on the electric dipole moment (EDM) of electron and neutron in the constrained minimal supersymmetric model. We find that the phases phi_{\mu} and phi_{A_0} have to be strongly correlated, in…

高能物理 - 唯象学 · 物理学 2014-11-17 A. Bartl , T. Gajdosik , W. Porod , P. Stockinger , H. Stremnitzer

The complete set of Higgs-boson two-loop contributions to electric dipole moments of the electron and neutron is calculated in the minimal supersymmetric standard model. The electric dipole moments are induced by CP-violating trilinear…

高能物理 - 唯象学 · 物理学 2010-04-21 Apostolos Pilaftsis

The neutron electric dipole moment is investigated in a supersymmetric electroweak model admitting $ {\rm SU(2)}_W $ singlet and $ Q = -1/3 $, say $ D $-type, quarks. Significant $ CP $ violating phases appear in the coupling between the…

高能物理 - 唯象学 · 物理学 2009-10-28 Yoshiya Takeda , Isao Umemura , Katsuji Yamamoto , Dai Yamazaki

We review the status of the electric dipole moment (EDM) of neutron in the Standard Model (SM). The contributions of the strong and electroweak interactions are discussed seperately. In each case the structure of the Lagrangian and the…

高能物理 - 唯象学 · 物理学 2009-09-25 Shahida Dar

The Electric Dipole Moment of the electron (eEDM) is typically investigated in experiments using paramagnetic molecules. However, the physical observable in these searches consists in a linear combination of CP-violating interactions,…

高能物理 - 唯象学 · 物理学 2025-03-31 Marco Ardu , Nicola Valori

The electric dipole moment of the muon ($d_\mu$) is evaluated in a two Higgs doublet model with a softly broken discrete symmetry. The leading contributions from both one loop and two loop diagrams are considered. For $\tan\beta \equiv…

高能物理 - 唯象学 · 物理学 2009-09-15 Vernon Barger , Ashok Das , Chung Kao

The electric dipole moment of the muon ($d_\mu$) is evaluated in a two Higgs doublet model with a softly broken discrete symmetry. For $\tan\beta \equiv |v_2|/|v_1| \sim 1$, contributions from two loop diagrams involving the $t$ quark and…

高能物理 - 唯象学 · 物理学 2016-11-03 Vernon Barger , Chung Kao , Ashok Das

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…

高能物理 - 唯象学 · 物理学 2015-06-19 Tarek Ibrahim , Ahmad Itani , Pran Nath

We discuss electric dipole moments (EDMs) in the framework of CP-violating natural supersymmetry (SUSY). Recent experimental results have significantly tightened constraints on the EDMs of electrons and of mercury, and substantial further…

高能物理 - 唯象学 · 物理学 2017-09-13 Yuichiro Nakai , Matthew Reece

Recent progresses in the measurements of the electric dipole moment (EDM) of the electron using the paramagnetic atom or molecule are remarkable. In this paper, we calculate a contribution to the electron EDM at three-loop level,…

高能物理 - 唯象学 · 物理学 2025-02-18 Tatsuya Banno , Junji Hisano , Teppei Kitahara , Kiyoto Ogawa , Naohiro Osamura

In this paper we present the complete expressions of the lepton and neutron electric dipole moments (EDMs) in the Standard Model Effective Field Theory (SMEFT), up to 1-loop and dimension-6 level and including both RG running contributions…

高能物理 - 唯象学 · 物理学 2023-01-16 Jonathan Kley , Tobias Theil , Elena Venturini , Andreas Weiler

In a previous paper [1], we studied the $\eta'$ mass and formulated its chirally symmetric coupling to fermions which induces electric dipole moment (EDM). Here we calculate the EDM to one-loop. It is finite, having no ultraviolet…

高能物理 - 理论 · 物理学 2012-05-01 A. P. Balachandran , T. R. Govindarajan , Amilcar R. de Queiroz

Using QCD sum rules, we calculate the electric dipole moment of the neutron d_n induced by all CP violating operators up to dimension five. We find that the chromoelectric dipole moments of quarks \tilde d_i, including that of the strange…

高能物理 - 唯象学 · 物理学 2009-10-31 Maxim Pospelov , Adam Ritz

We study electric dipole moments (EDM) of electron and proton in E(6)--inspired supersymmetric models with an extra U(1) invariance. Compared to the Minimal Supersymmetric Standard Model (MSSM), in addition to offering a natural solution to…

高能物理 - 唯象学 · 物理学 2008-10-28 Alper Hayreter , Asli Sabanci , Levent Solmaz , Saime Solmaz