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Related papers: The two-loop corrections to lepton MDMs and EDMs i…

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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…

High Energy Physics - Phenomenology · Physics 2023-01-16 Jonathan Kley , Tobias Theil , Elena Venturini , Andreas Weiler

The two Higgs bi-doublet left-right symmetric model (2HBDM) as a simple extension of the minimal left-right symmetric model with a single Higgs bi-doublet is motivated to realize both spontaneous P and CP violation while consistent with the…

High Energy Physics - Phenomenology · Physics 2015-06-05 Jin-Yan Liu , Li-Ming Wang , Yue-Liang Wu , Yu-Feng Zhou

We present the first complete two-loop calculation of the electric and chromo-electric dipole moments of the light quarks and the gluon, as well as contributions to CP-violating lepton-quark interactions, in the unconstrained two-Higgs…

High Energy Physics - Phenomenology · Physics 2025-11-13 Wolfgang Altmannshofer , Joachim Brod , Patipan Uttayarat , Daniil Volkov

The one-loop MSSM contributions to the weak dipole moments of the \tau lepton and the b quark (at the Z peak) as well as the electromagnetic and weak dipole form factors of the t quark (at arbitrary s>4m^2_t) are reviewed. Emphasis is given…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. I. Illana

We study that a minimal supersymmetric standard model with an extra $U(1)'$ gauge symmetry may accommodate the explicit CP violation at the one-loop level through radiative corrections. This model is CP conserving at the tree level and…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. W. Ham , E. J. Yoo , S. K. OH

We examine the one loop contributions arising in the Two-Higgs-Doublet Model (THDM) to the W-boson anomalous magnetic dipole and electric quadrupole form factors for both photon and Z couplings relevant at collider energies. While the model…

High Energy Physics - Phenomenology · Physics 2009-10-22 T. G. Rizzo

We present a simple analysis that allows us to extract the leading mass dependence of the dipole moment of matter fermions that might be induced by new physics. We present explicit results for the supersymmetric model with broken R-parity…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. M. Godbole , S. Pakvasa , S. D. Rindani , X. Tata

We compute the two-loop corrections to the coefficient of the b --> s gamma magnetic penguin present in the limits of heavy top and/or heavy higgs. This kind of corrections affects in a significant way the observables measured at LEP. On…

High Energy Physics - Phenomenology · Physics 2009-10-09 A. Strumia

In the Minimal Supersymmetric Standard Model (MSSM) with additional vector-like particles (VLPs), we for the first time derive the particle mass spectra and the Feynman rules, as well as analytically calculate the one-loop contributions to…

High Energy Physics - Phenomenology · Physics 2015-06-26 Tianjun Li , Wenyu Wang , Xiao-Chuan Wang , Zhao-Hua Xiong

The magnetic dipole moment (MDM) and the electric dipole moment (EDM) of leptons are calculated under the assumption of lepton flavor violation (LFV) induced by spin-1 unparticles with both vector and axial-vector couplings to…

High Energy Physics - Phenomenology · Physics 2011-10-24 A. Moyotl , A. Rosado , G. Tavares-Velasco

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-to-minimal supersymmetric standard model (NMSSM) with CP-violating…

High Energy Physics - Phenomenology · Physics 2011-08-04 Kingman Cheung , Tie-Jiun Hou , Jae Sik Lee , Eibun Senaha

We study the possibilities of spontaneous CP violation in the Next-to-Minimal Supersymmetric Standard Model with an extra singlet tadpole term in the scalar potential. We calculate the Higgs boson masses and couplings with radiative…

High Energy Physics - Phenomenology · Physics 2009-11-10 Cyril Hugonie , Jorge C. Romao , Ana M. Teixeira

The one-loop weak-magnetic and weak-electric dipole form factors of heavy fermions in a generic model are derived. Numerical predictions for the $\tau$ lepton and $b$ quark Weak Anomalous Magnetic and Electric Dipole Moments (AWMDM and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stefano Rigolin

The contribution in the R-parity violating (RPV) Minimal Supersymmetric Standard Model (MSSM) to the electric dipole moment (EDM) of $^{199}$Hg at the one-loop level is evaluated. At the one-loop level, the $^{199}$Hg EDM receives RPV…

High Energy Physics - Phenomenology · Physics 2010-10-04 Nodoka Yamanaka , Toru Sato , Takahiro Kubota

We study two Higgs doublet models with successful electroweak baryogenesis but without cancellations of electric dipole moments (EDMs). For the baryogenesis, additional scalar bosons are favored to couple mainly with the top quark with CP…

High Energy Physics - Phenomenology · Physics 2025-04-11 Masashi Aiko , Motoi Endo , Shinya Kanemura , Yushi Mura

A commonly accepted mechanism of generating baryon asymmetry in the minimal supersymmetric standard model (MSSM) depends on the CP violating relative phase between the gaugino mass and the Higgsino mu term. The direct constraint on this…

High Energy Physics - Phenomenology · Physics 2009-09-01 Darwin Chang , We-Fu Chang , Wai-Yee Keung

If the neutrinos are Majorana fermions, there are at least three new, potentially observable CP-odd phases that parameterize CP-invariance violating phenomena. We currently have no information regarding any of them and know that two out of…

High Energy Physics - Phenomenology · Physics 2009-11-11 Andre de Gouvea , Shrihari Gopalakrishna

Precise measurement of the Electric Dipole Moment (EDM) and anomalous magnetic moment ($g$-2) of particles are important tests of Beyond Standard Model (BSM) physics. It is generally believed that the tau lepton couples more strongly to BSM…

High Energy Physics - Phenomenology · Physics 2020-01-08 Xin Chen , Yongcheng Wu

In the MSSM, the Higgs couplings to down-type quarks and leptons, normalized with respect to their corresponding Standard Model values, coincide at tree-level and this degeneracy is only slightly broken at the quantum level. Motivated by…

High Energy Physics - Phenomenology · Physics 2013-05-30 Christoffer Petersson , Alberto Romagnoni , Riccardo Torre

In this work, we address the impact of a small lepton number violation on charged lepton electric dipole moments - EDMs. Low-scale seesaw models protected by lepton number symmetry and leading to pseudo-Dirac pairs in the neutrino heavy…

High Energy Physics - Phenomenology · Physics 2024-08-27 Asmaa Abada , Takashi Toma