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相关论文: Improved indirect limits on muon EDM

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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

The two-loop contribution to the electric dipole moment (EDM) and the chromo electric dipole moment (CEDM) of an arbitrary fermion f induced by the most general renormalizable tbW coupling with complex left- and right-handed components (a_L…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Avilez-Lopez , H. Novales-Sanchez , G. Tavares-Velasco , J. J. Toscano

Relativistic many-body methods at different levels of approximations are employed to gain insights into the passage of the electron correlations from lower to higher levels in the accurate determination of the electric dipole polarizability…

原子物理 · 物理学 2015-03-18 Yashpal Singh , B. K. Sahoo

We investigate the muon anomalous magnetic dipole moment (MDM), the muon electric dipole moment (EDM) and the lepton-flavour-violating decays of the $\tau-$lepton, $\tau \to \mu \gamma$ and $\tau\to 3\mu$, in the CP-violating Minimal…

高能物理 - 唯象学 · 物理学 2009-11-10 Tai-Fu Feng , Tao Huang , Xue-Qian Li , Xin-Min Zhang , Shu-Min Zhao

The electric dipole moments (EDMs) of heavy nuclei, such as 199Hg, 225Ra and 211Rn, can be enhanced by the Schiff moments induced by the presence of nearby parity-doublet states. Working within the framework of the maximally CP-violating…

高能物理 - 唯象学 · 物理学 2015-03-17 John Ellis , Jae Sik Lee , Apostolos Pilaftsis

Present limit on the electron electric dipole moment ($e$EDM) is based on the electron spin precession measurement. We propose an alternative approach - observation of the $\mathcal{P}$,$\mathcal{T}$-odd Faraday effect in an external…

原子物理 · 物理学 2019-07-30 D. V. Chubukov , L. V. Skripnikov , L. Bougas , L. N. Labzowsky

New bounds on the electric dipole moment (EDM) of charm and bottom quarks are derived using the stringent limits on their chromo-EDMs. The new limits, $|d_c|<1.5\times10^{-21}\:e\,\text{cm}$ and $|d_b|< 1.2\times 10^{-20}\:e\,\text{cm}$,…

高能物理 - 唯象学 · 物理学 2020-07-22 Hector Gisbert , Joan Ruiz Vidal

The anomalous magnetic ($\tilde{a}_\tau$) and electric dipole ($\tilde{d}_\tau$) moment of tau lepton described in $\tau\bar{\tau}\gamma$ vertices are studied via $\mu^{+}\mu^{-} \rightarrow \tau^+\bar{\tau}^-$ process at the Muon colliders…

高能物理 - 唯象学 · 物理学 2024-08-30 H. Denizli , A. Senol , M. Köksal

We present for the first time a detailed and comprehensive analysis of the experimental results that set the current world sensitivity limit on the magnitude of the electric dipole moment (EDM) of the neutron. We have extended and enhanced…

We have calculated the atomic electric dipole moments (EDMs) induced in ^{199}Hg, ^{129}Xe, ^{223}Rn, ^{225}Ra, and ^{239}Pu by their respective nuclear Schiff moments S. The results are (in units 10^{-17}S(e {fm}^{3})^{-1}e cm):…

高能物理 - 唯象学 · 物理学 2009-08-18 V. A. Dzuba , V. V. Flambaum , J. S. M. Ginges , M. G. Kozlov

Recently, the Muon g-2 experiment at Fermilab has measured the muon anomalous magnetic dipole moment (MDM), $a_\mu=(g_\mu-2)/2$, which reported that the new experimental average increases the tension between experiment and the standard…

高能物理 - 唯象学 · 物理学 2022-06-01 Hai-Bin Zhang , Chang-Xin Liu , Jin-Lei Yang , Tai-Fu Feng

We perform calculations of the CP-violating atomic and molecular electric dipole moments (EDM) induced by the interaction of the nuclear Schiff moments with electrons. EDM of atoms Eu, Dy, Gd, Ac, Th, Pa, U, Np and Pu are of special…

原子物理 · 物理学 2020-04-15 V. V. Flambaum , V. A. Dzuba

We derive an upper limit on the electric dipole moment (EDM) of the tau-lepton, which follows from the precision measurements of the electron EDM.

高能物理 - 唯象学 · 物理学 2009-08-05 A. G. Grozin , I. B. Khriplovich , A. S. Rudenko

We examine the muon's electric dipole moment $\dmu$ from a variety of theoretical perspectives. We point out that the reported deviation in the muon's g-2 can be due partially or even entirely to a new physics contribution to the muon's…

高能物理 - 唯象学 · 物理学 2008-11-26 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

We reevaluate the electric dipole moment (EDM) of charged leptons in the standard model using hadron effective models. We find unexpectedly large EDM generated by the hadron level long-distance effect, $d_e = { 5.8 \times 10^{-40} }$,…

高能物理 - 唯象学 · 物理学 2021-01-06 Yasuhiro Yamaguchi , Nodoka Yamanaka

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

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

The electric dipole moment (EDM) enhancement factor of atomic Tl is of considerable interest as it has been used in determining the most accurate intrinsic electron EDM limit to date. However, the value of this quantity varies from $-179$…

原子物理 · 物理学 2011-07-08 H. S. Nataraj , B. K. Sahoo , B. P. Das , D. Mukherjee

We study the prospects and opportunities of a large muon electric dipole moment (EDM) of the order (10^{-24} - 10^{-22}) ecm. We investigate how natural such a value is within the general minimal supersymmetric extension of the Standard…

高能物理 - 唯象学 · 物理学 2010-12-23 Gudrun Hiller , Katri Huitu , Jari Laamanen , Timo Rüppell

This letter of intent proposes an experiment to search for an electric dipole moment of the muon based on the frozen-spin technique. We intend to exploit the high electric field, $E=1{\rm GV/m}$, experienced in the rest frame of the muon…