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The long-standing muon g-2 anomaly can be explained by heavy new physics particles through chirally enhanced contributions. It has been recently proposed that a muon collider running at center-of-mass energies of several TeV could test…

High Energy Physics - Phenomenology · Physics 2023-01-11 Paride Paradisi , Olcyr Sumensari , Alessandro Valenti

We study gravitational back-reaction within the Page-Wootters formulation of quantum mechanics by treating time as a quantum degree of freedom. Our model introduces a distinction between global coordinate time, represented as a relational…

General Relativity and Quantum Cosmology · Physics 2025-10-20 Ashmeet Singh , Oliver Friedrich

The deviation between the standard model prediction and the measurement of the muon g-2 is currently at 3-4 sigma (can be up to 7 sigma in the upcoming experiment E989). If new physics is responsible for such discrepancy, it is expected…

High Energy Physics - Phenomenology · Physics 2021-02-24 Hieu Minh Tran , Yoshimasa Kurihara

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 concur with de Castro's observation that the gauge considerations of our approach are not valid. Nevertheless, except for an error that will be corrected, all of our findings are accurate independent of those considerations.

High Energy Physics - Theory · Physics 2009-11-07 A. D. Alhaidari

The muon anomalous magnetic moment is one of the most precisely measured quantities in particle physics. Recent high precision measurements (0.54ppm) at Brookhaven reveal a ``discrepancy'' by 3 standard deviations from the electroweak…

High Energy Physics - Phenomenology · Physics 2010-04-06 F. Jegerlehner

When the magnetic vector potential is expressed in terms of the magnetic field it, is found to be explicitly non-local in space. This gives support to the conclusions of Aharonov et al. in a recent comment, that the Aharonov-Bohm effect may…

Quantum Physics · Physics 2016-05-19 A M Stewart

The precision observables M_W and g-2 of the muon are discussed in the framework of the MSSM. Recent progress in the evaluation of the theoretical predictions is described, and the MSSM predictions are compared with the SM predictions and…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Haestier , S. Heinemeyer , W. Hollik , D. Stöckinger , A. M. Weber , G. Weiglein

We summarize the indirect effects of new physics in a variety of processes. We consider precision electroweak measurements, the $g-2$ of the muon, rare decays, meson mixing, CP violation, lepton number violating interactions, double beta…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. L. Hewett , T. Takeuchi , S. Thomas

We investigate the possibility to interpret the muon $g-2$ anomaly in terms of a massive spin-2 particle, $G$, which can be identified as the first Kaluza-Klein graviton in the generalized Randall-Sundrum model. In particular, we obtain the…

High Energy Physics - Phenomenology · Physics 2023-02-22 Da Huang , Chao-Qiang Geng , Jiajun Wu

We show that a VMD based theoretical input allows for a significantly improved accuracy for the hadronic vacuum polarization of the photon which contributes to the theoretical estimate of the muon g-2. We also show that the only…

High Energy Physics - Phenomenology · Physics 2011-01-05 M. Benayoun , L. Del Buono , P. David , O. Leitner

This article reviews and updates the Standard Model prediction of the muon g-2. QED, electroweak and hadronic contributions are presented, and open questions discussed. The theoretical prediction deviates from the present experimental value…

High Energy Physics - Phenomenology · Physics 2009-07-09 M. Passera

The limits on lepton radii and contact interaction scales are used to derive limits on the deviations of lepton anomalous magnetic dipole moments (g-2)/2 from the Standard Model predictions. In the case of quadratic dependence of the…

High Energy Physics - Phenomenology · Physics 2025-06-19 Dimitri Bourilkov

We show that any new interaction resulting in a chirally-enhanced contribution to the muon magnetic moment necessarily modifies the decay rate of the Higgs boson to muon pairs or generates the muon electric dipole moment. These three…

High Energy Physics - Phenomenology · Physics 2022-12-07 Radovan Dermisek , Keith Hermanek , Navin McGinnis , Sangsik Yoon

A sinusoidally time-varying pattern of the values of the Newton's constant of gravitation $G$ measured in Earth-based laboratories over the latest decades has been recently reported in the literature. We put to the test the hypothesis that…

General Relativity and Quantum Cosmology · Physics 2016-01-22 Lorenzo Iorio

The possibility that the strength of gravitational interactions might slowly increase with distance, is explored by formulating a set of effective field equations, which incorporate the gravitational, vacuum-polarization induced, running of…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Herbert W. Hamber , Ruth M. Williams

The new measurement of the muon's anomalous magnetic moment released by the Muon g-2 experiment at Fermilab sets strong constraints on the properties of many new particles. Using an effective field theory approach to the interactions of…

High Energy Physics - Phenomenology · Physics 2021-07-07 Juan C. Criado , Abdelhak Djouadi , Niko Koivunen , Kristjan Müürsepp , Martti Raidal , Hardi Veermäe

The very precise measurement of the anomalous magnetic moment of the muon, recently released by the Muon g-2 experiment at Fermilab, can serve to set stringent constraints on new particles. If the observed 4$\sigma$ discrepancy from the…

High Energy Physics - Phenomenology · Physics 2021-12-24 J. C. Criado , A. Djouadi , N. Koivunen , K. Müürsepp , M. Raidal , H. Veermäe

This article reviews the muon g-2 experiment, a cornerstone in precision tests of the Standard Model of particle physics. The experiment measures the anomalous magnetic moment of the muon with unprecedented accuracy, seeking potential…

High Energy Physics - Experiment · Physics 2025-08-06 Marin Karuza

The paper is being withdrawn because of some theoretical inconsistencies.

High Energy Physics - Phenomenology · Physics 2016-09-06 Uma Mahanta , Prasanta Das
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