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相关论文: g-2 In the custodially protected RS model

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We determine the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon using the framework of Dyson-Schwinger and Bethe-Salpeter equations of QCD. Our result for the pseudoscalar ($\pi^0, \eta, \eta'$)…

高能物理 - 唯象学 · 物理学 2015-03-17 Tobias Goecke , Christian S. Fischer , Richard Williams

We reexamine the Randall-Sundrum (RS) model with enlarged gauge symmetry SU(2)_L x SU(2)_R x U(1)_X x P_LR in the presence of a brane-localized Higgs sector. In contrast to the existing literature, we perform the Kaluza-Klein (KK)…

高能物理 - 唯象学 · 物理学 2010-09-15 Sandro Casagrande , Florian Goertz , Ulrich Haisch , Matthias Neubert , Torsten Pfoh

We extend our analysis of the leading hadronic contribution to the anomalous magnetic moment of the muon using the mixed representation method to study its chiral behavior. We present results derived from local-conserved two-point lattice…

We summarize our recent new evaluation of the pion-exchange contribution to hadronic light-by-light scattering in the muon g-2. We first derive a new short-distance constraint on the off-shell pion-photon-photon form factor at the external…

高能物理 - 唯象学 · 物理学 2014-11-20 Andreas Nyffeler

This paper reports the tenth-order contributions to the g-2 of the electron a_e and those of the muon a_mu from the gauge-invariant Set II(c), which consists of 36 Feynman diagrams, and Set II(d), which consists of 180 Feynman diagrams.…

高能物理 - 唯象学 · 物理学 2015-03-17 T. Aoyama , M. Hayakawa , T. Kinoshita , M. Nio

Improved values for the two- and three-loop mass-dependent QED contributions to the anomalous magnetic moments of the electron, muon, and tau lepton are presented. The Standard Model prediction for the electron (g-2) is compared with its…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Passera

The recent Fermilab measurement of the muon anomalous magnetic moment yields $4.2 \sigma$ deviations from the SM prediction when combined with the BNL E821 experiment results. In the Type-X two Higgs doublet model, we study the consequence…

高能物理 - 唯象学 · 物理学 2021-11-24 Adil Jueid , Jinheung Kim , Soojin Lee , Jeonghyeon Song

Since the heavy neutrinos of the inverse seesaw mechanism mix largely with the standard ones, the charged currents formed with them and the muons have the potential of generating robust and positive contribution to the anomalous magnetic…

高能物理 - 唯象学 · 物理学 2021-11-09 João Paulo Pinheiro , C. A. de S. Pires , Farinaldo S. Queiroz , Yoxara S. Villamizar

We show an interesting correlation between the recent high precision measurement of the $W$-boson mass by the CDF collaboration and the muon $(g-2)$ anomaly in the context of the two Higgs doublet model. One-loop diagrams involving the…

高能物理 - 唯象学 · 物理学 2022-09-16 K. S. Babu , Sudip Jana , Vishnu P. K.

The deviations of the recent measurements of the muon magnetic moment and the $W-$boson mass from their SM predictions hint to new physics beyond the SM. In this article, we address the observed discrepancies in the $W$-boson mass and muon…

高能物理 - 唯象学 · 物理学 2025-01-03 Hrishabh Bharadwaj , Mamta Dahiya , Sukanta Dutta , Ashok Goyal

We study the two-Higgs-doublet model with type-II seesaw mechanism. In view of constraints from the Higgs data, we consider the aligned two-Higgs-doublet scheme and its effects on muon anomalous magnetic dipole moment, $a_{\mu}$, including…

高能物理 - 唯象学 · 物理学 2021-09-15 Chuan-Hung Chen , Cheng-Wei Chiang , Takaaki Nomura

Higher-order hadronic corrections to the anomalous magnetic moment of the muon have been evaluated including next-to-next-to-leading-order insertions of hadronic vacuum polarization and next-to-leading-order corrections to hadronic…

高能物理 - 唯象学 · 物理学 2022-03-21 Martin Hoferichter , Thomas Teubner

We have studied the leptonic EDM and the LFV decays relating with the recent data of anomalous magnetic moment of muon, $(g-2)_{\mu}$ in the leptonic dipole operator. We have adopted the successful $\Gamma_2$ modular invariant model by…

高能物理 - 唯象学 · 物理学 2024-12-18 Takaaki Nomura , Morimitsu Tanimoto , Xing-Yu Wang

A review of the experimental and theoretical determinations of the anomalous magnetic moment of the muon is given. The anomaly is defined by a=(g-2)/2, where the Land\'e g-factor is the proportionality constant that relates the spin to the…

高能物理 - 唯象学 · 物理学 2008-11-26 James P. Miller , Eduardo de Rafael , B. Lee Roberts

The QED contribution to the anomalous magnetic moments of electron and muon are known very precisely up to the order $\alpha^4$. However, the knowledge of $\alpha^5$ term will also be required when the precision of measurement improves…

高能物理 - 唯象学 · 物理学 2009-11-11 T. Kinoshita , M. Nio

The anomalous magnetic moments of leptons represent excellent probes of the Standard Model and therefore also of possible new physics effects. In particular, the persisting hint of new physics in the muon $g$-2 motivates the investigation…

高能物理 - 唯象学 · 物理学 2024-10-17 ZeQiang Wang

We present the up to now most precise evaluation of electroweak and supersymmetric contributions to the anomalous magnetic moment of the muon \amu, describing in detail also the calculational techniques. We calculate the bosonic two-loop…

高能物理 - 唯象学 · 物理学 2009-11-10 Sven Heinemeyer , Dominik Stöckinger , Georg Weiglein

We calculate supersymmetric two-loop corrections to the anomalous magnetic moment of the muon, consisting of diagrams with a closed scalar fermion or fermion loop and gauge and/or Higgs boson exchange. We discuss the numerical impact of…

高能物理 - 唯象学 · 物理学 2010-04-05 S. Heinemeyer , D. Stöckinger , G. Weiglein

We calculate the pion pole term of the light-by-light contribution to the $g-2$ of the muon in the framework of an effective chiral quark model with instanton-like nonlocal quark--quark interaction. The full kinematic dependence of the…

高能物理 - 唯象学 · 物理学 2008-11-26 Alexander E. Dorokhov , Wojciech Broniowski

The present situation on a comparison of theoretical evaluation of the muon anomalous magnetic moment with experimental one is roughly reviewed. Then by means of a recently elaborated unitary and analytic model of the meson transition form…

高能物理 - 唯象学 · 物理学 2009-11-10 A. -Z. Dubnickova , S. Dubnicka , A. Liptaj , R. Pekarik