English
Related papers

Related papers: Gradient flow of the Weinberg operator

200 papers

The question of CP violating phases and electric dipole moments (EDMs)for the electron ($d_e$) and the neutron ($d_n$) for supergravity models with nonuniversal soft breaking is considered for models with a light ($\stackrel{<}{\sim}$1 TeV)…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Accomando , R. Arnowitt , B. Dutta

We study the electric dipole moments(EDM) of the neutron and the electron in the two-Higgs-doublet model, in the case that $CP$ symmetry is violated maximally in the neutral Higgs sector. We take account of the Weinberg's operator…

High Energy Physics - Phenomenology · Physics 2010-11-01 Takemi HAYASHI , Yoshio Koide , Masahisa Matsuda , Morimitsu Tanimoto , Seiichi Wakaizumi

The CP-violating quark chromoelectric dipole moment (qCEDM) operator, contributing to the electric dipole moment (EDM), mixes under renormalization and particularly on the lattice with the pseudoscalar density. The mixing coefficient is…

High Energy Physics - Lattice · Physics 2021-10-12 Jangho Kim , Thomas Luu , Matthew D. Rizik , Andrea Shindler

We provide a consistent and complete calculation of the electric dipole moments of the deuteron, helion, and triton in the framework of chiral effective field theory. The CP-conserving and CP-violating interactions are treated on equal…

High Energy Physics - Phenomenology · Physics 2015-05-19 J. Bsaisou , J. de Vries , C. Hanhart , S. Liebig , Ulf-G. Meißner , D. Minossi , A. Nogga , A. Wirzba

We present a detailed study of the Thallium, neutron, Mercury and deuteron electric dipole moments (EDMs) in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the complete set of one-loop…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , Jae Sik Lee , Apostolos Pilaftsis

Schwinger operator method is applied for studying CP-odd pure gluonic effective Lagrangian in the Standard Model at three-loop level. The induced $\theta$-term vanishes by the same reasons as EDMs of quark and W-boson to two-loop…

High Energy Physics - Phenomenology · Physics 2010-11-01 M. E. Pospelov

We analyze the constraints placed on individual, flavor diagonal CP-violating phases in the minimal supersymmetric extension of the Standard Model (MSSM) by current experimental bounds on the electric dipole moments (EDMs) of the neutron,…

High Energy Physics - Phenomenology · Physics 2014-11-21 Yingchuan Li , Stefano Profumo , Michael Ramsey-Musolf

We study the CP-violating (CPV) neutral triple gauge couplings (nTGCs) that can be realized via dimension-8 operators in the Standard Model Effective Field Theory (SMEFT). We present a new formulation of the CPV nTGC form factors that is…

High Energy Physics - Phenomenology · Physics 2026-04-10 John Ellis , Hong-Jian He , Rui-Qing Xiao

We study the neutron electric dipole moment in the presence of the CP-violating operators up to the dimension five in terms of the QCD sum rules. It is found that the OPE calculation is robust when exploiting a particular interpolating…

High Energy Physics - Phenomenology · Physics 2012-07-17 Junji Hisano , Jeong Yong Lee , Natsumi Nagata , Yasuhiro Shimizu

CP violating interactions are required to realize the matter abundance of our Universe. It is however known that the standard model of particle physics does not contain sufficient CP violation. The electric dipole moment (EDM) of atomic…

High Energy Physics - Phenomenology · Physics 2022-11-18 Nodoka Yamanaka

It has been shown that CP violating electron-nucleon and nucleon-nucleon interactions can induce atomic electric dipole moments and are therefore constrained from experimental data. We show that using the experimental upper bounds on…

High Energy Physics - Phenomenology · Physics 2009-10-28 Xiao-Gang He , Bruce McKellar

We study and analyze the electric dipole moments (EDMs) of neutron and heavy quarks c, t in a CP-violating (CPV) supersymmetric U(1) extension of the standard model called $U(1)_X$SSM, whose local gauge group is $U(1)_X\times SU(3)_C\times…

High Energy Physics - Phenomenology · Physics 2021-11-02 Ben Yan , Shu-Min Zhao , Tai-Fu Feng

The experimental search for CP violation in paramagnetic atomic and molecular systems has made impressive progress in recent years. This has led to strong upper limits on the electron electric dipole moment. The same measurements can also…

High Energy Physics - Phenomenology · Physics 2025-10-24 Heleen Mulder , Rob Timmermans , Jordy de Vries

We propose the complex group theoretical Clebsch-Gordon coefficients as a novel origin of CP violation. This is manifest in our model based on SU(5) combined with the double tetrahedral group, T'. Due to the presence of the doublet…

High Energy Physics - Phenomenology · Physics 2015-05-14 Mu-Chun Chen , K. T. Mahanthappa

We revisit the constraints imposed by electric dipole moments (EDMs) of nucleons and heavy atoms on new CP-violating sources within supersymmetric theories. We point out that certain two-loop renormalization group corrections induce…

High Energy Physics - Phenomenology · Physics 2009-09-15 Keith A. Olive , Maxim Pospelov , Adam Ritz , Yudi Santoso

We study diagonal and transition quark dipole operators in a class of extended technicolor (ETC) models, taking account of the multiscale nature of the ETC gauge symmetry breaking and of the mixing among ETC interaction eigenstates. Because…

High Energy Physics - Phenomenology · Physics 2009-11-10 Thomas Appelquist , Maurizio Piai , Robert Shrock

We explore CP-violating (CPV) effects of heavy New Physics in flavour-changing quark dipole transitions, within the framework of Standard Model Effective Field Theory (SMEFT). First, we establish the relevant dimension six operators and…

High Energy Physics - Phenomenology · Physics 2023-06-30 Svjetlana Fajfer , Jernej F. Kamenik , Nejc Košnik , Aleks Smolkovič , Michele Tammaro

The quantum phase-space dynamics driven by hyperbolic P\"oschl-Teller (PT) potentials is investigated in the context of the Weyl-Wigner quantum mechanics. The obtained Wigner functions for quantum superpositions of ground and first-excited…

Quantum Physics · Physics 2019-09-24 Alex E. Bernardini , Roldao Da Rocha

In the framework of the minimal supersymmetric model extension with new scalar triplets and singlet (TNMSSM), we analyze the electric dipole moment (EDM) of neutron ($d_n$), electron EDM($d_e$), the mercury EDM($d_{Hg}$), $b$ quark ($d_b$)…

High Energy Physics - Phenomenology · Physics 2025-02-06 Qing-hua Li , Jin-Lei Yang , Xiang Yang , Tai-Fu Feng

Parity- and time reversal-violating (PVTV) pion-nucleon couplings govern the magnitude of long-range contributions to nucleon and atomic electric dipole moments. When these couplings arise from chiral symmetry-breaking CP-violating…

High Energy Physics - Phenomenology · Physics 2017-12-27 Chien-Yeah Seng , Michael Ramsey-Musolf