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The long-standing difference between the experimental measurement and the standard-model prediction for the muon's anomalous magnetic moment, $a_{\mu} = (g_{\mu}-2)/2$, may be explained by the presence of new weakly interacting particles…

High Energy Physics - Phenomenology · Physics 2015-06-18 Ayres Freitas , Joseph Lykken , Stefan Kell , Susanne Westhoff

The ideas and formulas presented in the article will help to bring together the theoretical predictions for the anomalous magnetic moment of muon and the results of the "Muon g-2" experiment. In doing so, we are discussing the new effect…

High Energy Physics - Phenomenology · Physics 2021-09-30 Ara Ioannisian

The muon anomalous magnetic moment, $a_\mu = (g-2)/2$, is a low-energy observable which can be both measured and computed with very high precision, making it an excellent test of the Standard Model (SM) and a sensitive probe of new physics.…

High Energy Physics - Experiment · Physics 2022-07-20 Paolo Girotti

Anomalous magnetic moment of the muon (muon g-2) is one of the most precisely measured quantities in particle physics. At the same time, it can be evaluated in the Standard Model with an unprecedented accuracy. The Muon g-2 experiment at…

High Energy Physics - Lattice · Physics 2021-02-03 Marina Krstic Marinkovic , Nuno Cardoso

We experimentally and theoretically investigate the influence of the magnetic component of an electromagnetic field on high-order above-threshold ionization of xenon atoms driven by ultrashort femtosecond laser pulses. The nondipole shift…

We show that the anomalous magnetic moment experimental data of muon and electron $(g-2)_{\mu,e}$ can be explained simultaneously in simple extensions of the 3-3-1 models consisting of new heavy neutrinos and a singly charged Higgs boson.…

High Energy Physics - Phenomenology · Physics 2022-08-23 L. T. Hue , Khiem Hong Phan , T. Phong Nguyen , H. N. Long , H. T. Hung

The recent rise of material platforms combining magnetism and two-dimensionality of mobile carriers reveals a diverse spectrum of spin-orbit phenomena and stimulates its ongoing theoretical discussions. In this work we use the density…

Mesoscale and Nanoscale Physics · Physics 2022-02-02 K. S. Denisov

We derive the effective action for processes involving two neutrinos and two photons at energies much below the electron mass. We discuss several applications in which one or both photons are replaced by external fields. In particular,…

High Energy Physics - Phenomenology · Physics 2009-10-31 Holger Gies , Rashid Shaisultanov

The presence of a permanent electric dipole moment in an elementary particle implies Charge-Parity symmetry violation and thus could help explain the matter-antimatter asymmetry observed in our universe. Within the context of the Standard…

High Energy Physics - Experiment · Physics 2022-01-25 K. S. Khaw , A. Adelmann , M. Backhaus , N. Berger , M. Daum , M. Giovannozzi , K. Kirch , A. Knecht , A. Papa , C. Petitjean , F. Renga , M. Sakurai , P. Schmidt-Wellenburg

In this article one aspect of the so-called '4/3-problem' is analyzed, namely definitions of the electromagnetic mass of the classical electron. It is shown that if the special relativity definition of the electromagnetic (EM) mass as the…

General Physics · Physics 2024-06-03 Vladimir Onoochin

The effective interaction between two classical nonrelativistic electrons (positrons) in the presence of intense electromagnetic radiation (one and two waves) is theoretically studied. Small relativistic corrections are taking into account…

Plasma Physics · Physics 2020-01-08 S. S. Starodub , S. P. Roshchupkin , V. V. Dubov

The mobility $\mu$ of excess electrons in dense Argon gas has been measured as a function of the applied electric field $E$ and of the gas density N at several temperatures in the range $142.6<T<200$ K, encompassing the critical temperature…

Plasma Physics · Physics 2007-05-23 A. F. Borghesani , Peter Lamp

The emission from an electron in the field of a relativistically strong laser pulse is analyzed. At pulse intensities of J > 2 10^22 W/cm2 the emission from counter-propagating electrons is modified by the effects of Quantum ElectroDynamics…

The melting temperature ($T_m$) of a solid is generally determined by the pressure applied to it, or indirectly by its density ($n$) through the equation of state. This remains true even for helium solids\cite{wilk:67}, where quantum…

Strongly Correlated Electrons · Physics 2007-05-23 Yong P. Chen , G. Sambandamurthy , Z. H. Wang , R. M. Lewis , L. W. Engel , D. C. Tsui , P. D. Ye , L. N. Pfeiffer , K. W. West

We study static neutron stars with poloidal magnetic fields and a simple class of electric current distributions consistent with the requirement of stationarity. For this class of electric current distributions, we find that magnetic fields…

Astrophysics · Physics 2009-10-31 Christian Y. Cardall , Madappa Prakash , James M. Lattimer

Binary collisions between ions and electrons in an external magnetic field are considered in second-order perturbation theory, starting from the unperturbed helical motion of the electrons. The calculations are done with the help of an…

Plasma Physics · Physics 2007-05-23 Hrachya B. Nersisyan

Standard Model contributions to the electron, muon, and tau lepton anomalous magnetic moments, a_l=(g_l-2)/2, are reviewed and updated. The fine structure constant is obtained from the electron g_e-2 and used to refine the QED contribution…

High Energy Physics - Phenomenology · Physics 2009-10-31 Andrzej Czarnecki , William J. Marciano

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…

High Energy Physics - Phenomenology · Physics 2022-06-01 Hai-Bin Zhang , Chang-Xin Liu , Jin-Lei Yang , Tai-Fu Feng

Motivated by recent experiments, we study the interaction corrections to the damping of magnetooscillations in a two-dimensional electron gas (2DEG). We identify leading contributions to the interaction-induced damping which are induced by…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Y. Adamov , I. V. Gornyi , A. D. Mirlin

A cornerstone of physics, Maxwell's theory of electromagnetism, apparently contains a fatal flaw. The standard expressions for the electromagnetic field energy and self-mass of an electron of finite extension do not obey Einstein's famous…

Classical Physics · Physics 2023-02-01 Murat Khokonov , Jens Ulrik Andersen