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相关论文: Electron Electric Dipole Moment from Lepton Flavor…

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We present Lattice QCD results on the neutron tensor charges including, for the first time, a simultaneous extrapolation in the lattice spacing, volume, and light quark masses to the physical point in the continuum limit. We find that the…

高能物理 - 格点 · 物理学 2016-01-11 Tanmoy Bhattacharya , Vincenzo Cirigliano , Rajan Gupta , Huey-Wen Lin , Boram Yoon

The impact of the CPT-Odd electroweak gauge sector of the Standard Model Extension on the electromagnetic properties of charged leptons is studied. This gauge sector is characterized by the $(k_1)_\mu$ and $(k_2)_\mu$ Lorentz violation (LV)…

高能物理 - 唯象学 · 物理学 2024-11-28 J. S. Hurtado-Silva , J. J. Toscano , O. Vázquez-Hernández

We demonstrate the impact that present lepton flavour and CP violation data - neutrino oscillations, baryon asymmetry of the universe, flavour violations in charged lepton decays and lepton electric dipole moments - have on supersymmetric…

高能物理 - 唯象学 · 物理学 2009-11-11 I. Masina , C. A. Savoy

The existence of electric dipole moments (EDM) for fundamental particles signals time-reversal symmetry (T) violation accompanied by violation of parity (P); only upper limits have been established to date. Time-reversal violation in turn…

核实验 · 物理学 2022-03-02 D. H. Beck , D. Budker , B. K. Park , nEDM Collaboration

The electric dipole moment of atomic $^{199}$Hg induced by the nuclear Schiff moment and tensor-pseudotensor electron-nucleus interactions has been calculated. For this, we have developed and employed a novel method based on the…

原子物理 · 物理学 2009-12-29 K. V. P. Latha , D. Angom , B. P. Das , D. Mukherjee

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

The electric dipole moment (EDM) of a particle violates both time reversal (T) and space reflection (P) symmetries. There have been recent suggestions for searches of the electron EDM using solid state experiments [1,2]. These experiments…

强关联电子 · 物理学 2009-11-07 S. A. Kuenzi , O. P. Sushkov , V. A. Dzuba , J. M. Cadogan

We provide a detailed analysis of the supersymmetric tri-lepton signals for sparticle searches at the Tevatron in the minimal supersymmetric standard model with general CP-violating phases but without flavor mixing among sfermions of…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Y. Choi , M. Guchait , H. S. Song , W. Y. Song

Searches for intrinsic electric dipole moments (EDMs) of nucleons, atoms and molecules are precision flavor-diagonal probes of new $CP$-odd physics, as motivated by the need to explain the matter-antimatter asymmetry in the universe. We…

高能物理 - 唯象学 · 物理学 2026-03-19 Maxim Pospelov , Adam Ritz

In some models of physics beyond the Standard Model (SM), one of the leading low energy consequences of the model appears in the form of the chromo-electric dipole moments (CEDMs) of the gluons and light quarks. We examine if these CEDMs…

高能物理 - 唯象学 · 物理学 2024-08-23 Kiwoon Choi , Sang Hui Im , Krzysztof Jodłowski

The CP violating electric and weak dipole moment form factors of the top quark appear in the process $e^{+}e^{-} --> t\bar{t}$. We present a complete analysis of these dipole moment form factors within the Minimal Supersymmetric Standard…

高能物理 - 唯象学 · 物理学 2009-10-30 A. Bartl , E. Christova , T. Gajdosik , W. Majerotto

The exchange of an axion-like particle between atomic electrons and the nucleus may induce electric dipole moments (EDMs) of atoms and molecules. This interaction is described by a parity- and time-reversal-invariance-violating potential…

原子物理 · 物理学 2018-09-14 V. A. Dzuba , V. V. Flambaum , I. B. Samsonov , Y. V. Stadnik

While electron and muon dipole moments are well-established precision probes of physics beyond the standard model, it is notoriously challenging to test realistic new-physics (NP) scenarios for the $\tau$ lepton. Constructing suitable…

高能物理 - 唯象学 · 物理学 2026-05-06 Martin Hoferichter , Gabriele Levati

Permanent Electric Dipole Moments (EDMs) of elementary particles violate two fundamental symmetries: time reversal invariance (T) and parity (P). Assuming the CPT theorem this implies CP-violation. The CP-violation of the Standard Model is…

高能物理 - 实验 · 物理学 2013-07-31 Jörg Pretz

We set up the framework for the calculation of electric dipole moments (EDMs) of light nuclei using the systematic expansion provided by chiral effective field theory (EFT). We take into account parity (P) and time-reversal (T) violation…

高能物理 - 唯象学 · 物理学 2011-12-12 J. de Vries , R. Higa , C. -P. Liu , E. Mereghetti , I. Stetcu , R. G. E. Timmermans , U. van Kolck

The search for lepton-flavor-violation process e^+e^-\to e\mu in the energy region \sqrt{s}=984 - 1060 MeV with SND detector at VEPP-2M e^+e^- collider is reported. The model independent 90% CL upper limits on the e^+e^-\to e\mu cross…

Recent calculations of EDMs of light nuclei in the framework of chiral effective field theory are presented. We argue that they can be written in terms of the leading six low-energy constants encoding CP-violating physics. EDMs of the…

核理论 · 物理学 2015-06-11 Renato Higa

The Higgs sector which is extended from the standard model could generally become an origin of CP violation. In the model with two doublet and one triplet Higgs fields on SU(2) symmetry, we study the electric dipole moment (EDM) of the…

高能物理 - 唯象学 · 物理学 2019-05-07 Noriyuki Oshimo

CP violation from physics beyond the Standard Model may reside in triple boson vertices of the electroweak theory. We review the effective theory description and discuss how CP violating contributions to these vertices might be discerned by…

高能物理 - 唯象学 · 物理学 2009-10-05 Sunghoon Jung , James D. Wells

We revisit the potential of a Linear Collider concerning the study of lepton flavour violation, in view of new LHC bounds and of the (very) recent developments in lepton physics. Working in the framework of a type I supersymmetric seesaw,…

高能物理 - 唯象学 · 物理学 2015-03-03 A. Abada , A. J. R. Figueiredo , J. C. Romao , A. M. Teixeira