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相关论文: An Effective Operators Analysis of Leptonic CP Vio…

200 篇论文

Aiming at a model-independent analysis of possible new physics effects in semileptonic processes at various energy scales, we list and study a complete set of $SU(3)_c\times SU(2)_L\times U(1)_Y$ invariant 4-Fermi operators which consist of…

高能物理 - 唯象学 · 物理学 2007-05-23 We-Fu Chang , John N. Ng

We identify new room for CP violation in lepton flavor violating observables not bound by the electric dipole moment of leptons. By focusing on new physics in the muon-electron sector, we show that CP violation can make its first appearance…

高能物理 - 唯象学 · 物理学 2024-08-05 Diego Redigolo , Michele Tammaro , Andrea Tesi

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…

高能物理 - 唯象学 · 物理学 2015-05-19 J. Bsaisou , J. de Vries , C. Hanhart , S. Liebig , Ulf-G. Meißner , D. Minossi , A. Nogga , A. Wirzba

These proceedings introduce the main techniques and ideas for a systematic effective field theory analysis of CP violation in the charged lepton sector. This study is required because the Standard Model of particle physics predicts a very…

高能物理 - 唯象学 · 物理学 2022-09-21 Giovanni Marco Pruna

Pair production of tau leptons in two photon collision ${\gamma\gamma \to \tau^{+}\tau}^{-}$ is studied at CLIC to test CP violating QED couplings of tau leptons. CP violating effects are investigated using tau pair spin correlations which…

高能物理 - 唯象学 · 物理学 2016-07-20 S. Atag , E. Gurkanli

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

CP violation at low energy is investigated at the tau electromagnetic vertex. High statistics at B factories, and on top of the Upsilon resonances, allows a detailed investigation of CP-odd observables related to the tau-pair production.…

高能物理 - 唯象学 · 物理学 2009-11-10 J. Bernabeu , G. A. Gonzalez-Sprinberg , J. Vidal

Contribution of the strong CP angle, $\bar\theta$, to the Wilson Coefficients of electron and muon electric dipole moment (EDM) operators are discussed. Previously, $\bar\theta$ contribution to the electron EDM operator was calculated by…

高能物理 - 唯象学 · 物理学 2018-01-04 Diptimoy Ghosh , Ryosuke Sato

Low-energy results from measurements of leptonic dipole moments are used to derive constraints on the CP-violating phases of the dimensionful parameters of the minimal supersymmetric extension of the standard model (MSSM). We use these…

高能物理 - 唯象学 · 物理学 2009-11-10 Seong Youl Choi , Manuel Drees , Benedikt Gaissmaier

We survey 129 lepton number violating effective operators, consistent with the minimal Standard Model gauge group and particle content, of mass dimension up to and including eleven. Upon requiring that each one radiatively generates the…

高能物理 - 唯象学 · 物理学 2008-11-26 Andre de Gouvea , James Jenkins

New CP-violating asymmetries of decay leptons in $e^+\,e^-\;\ra\;t\,\bar{t}$, arising from electric and weak dipole couplings of $t\,\bar{t}$ to $\gamma$ and $Z$, are examined in the case of unpolarized and longitudinally polarized…

高能物理 - 唯象学 · 物理学 2010-11-01 P. Poulose , Saurabh D. Rindani

We present an analysis of the electric dipole moment (EDM) of the deuteron as induced by CP-violating operators of dimension 4, 5 and 6 including theta QCD, the EDMs and color EDMs of quarks, four-quark interactions and the Weinberg…

高能物理 - 唯象学 · 物理学 2008-11-26 Oleg Lebedev , Keith A. Olive , Maxim Pospelov , Adam Ritz

We perform a global analysis of searches for the permanent electric dipole moments (EDMs) of the neutron, neutral atoms, and molecules in terms of six leptonic, semileptonic, and nonleptonic interactions involving photons, electrons, pions,…

高能物理 - 唯象学 · 物理学 2015-06-22 Timothy Chupp , Michael Ramsey-Musolf

Strong correlations between leptogenesis and low energy CP violating leptonic processes have been shown by us to exist in the minimal left-right symmetric model with spontaneous CP violation. In this note, we investigate the implications of…

高能物理 - 唯象学 · 物理学 2008-11-26 Mu-Chun Chen , K. T. Mahanthappa

We study the potential of future lepton colliders to probe violation of the CP symmetry in the top quark sector. In certain extensions of the Standard Model, such as the two-Higgs-doublet model (2HDM), sizeable anomalous top quark dipole…

高能物理 - 实验 · 物理学 2018-04-04 W. Bernreuther , L. Chen , I. García , M. Perelló , R. Poeschl F. Richard , E. Ros , M. Vos

We analyze the implications of CP-violating scalar leptoquark (LQ) interactions for experimental probes of parity- and time-reversal violating properties of polar molecules. These systems are predominantly sensitive to the electric dipole…

高能物理 - 唯象学 · 物理学 2018-11-28 Kaori Fuyuto , Michael Ramsey-Musolf , Tianyang Shen

We define a CP-asymmetric observable that is sensitive to CP-violating interactions in the gauge-boson sector. We illustrate the utility of this observable by studying how well the LHC can measure the coefficient of a particular…

高能物理 - 唯象学 · 物理学 2008-11-26 Jason Kumar , Arvind Rajaraman , James D. Wells

We study CP violation in $J/\psi \rightarrow \Lambda \bar{\Lambda}$ decay. This decay provides a good place to look for CP violation. Some observables are very sensitive to the $\Lambda$ electric dipole moment $d_\Lambda$ and therefore can…

高能物理 - 唯象学 · 物理学 2009-12-30 Xiao-Gang He , J. P. Ma , B. McKellar

We propose to test the CP symmetry in the reactions Z -> mu+ mu- gamma and Z -> tau+ tau- gamma. The experimental analysis of angular correlations allows to determine a set of effective couplings: the electric and weak dipole moments of the…

高能物理 - 唯象学 · 物理学 2015-06-25 D. Bruss , O. Nachtmann , P. Overmann

We study CP violation in the lepton sector of the supersymmetric extension of the Standard Model with three generations of massive singlet neutrinos with Yukawa couplings $Y_\nu$ to lepton doublets, in a minimal seesaw model for light…

高能物理 - 唯象学 · 物理学 2008-11-26 John Ellis , Junji Hisano , Smaragda Lola , Martti Raidal
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