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The MUonE experiment aims at an independent and very precise determination of the leading hadronic contribution to the muon magnetic moment, based on an alternative method, complementary to the existing ones. This can be achieved by…

高能物理 - 实验 · 物理学 2020-12-15 Giovanni Abbiendi

The recent measurement of muon anomalous magnetic dipole moment (muon $g-2$) suggests that there might exist new physics that dominantly interacts with muons. The observed gamma-ray excess from Fermi-LAT indicates that dark matter…

高能物理 - 唯象学 · 物理学 2023-02-21 Jongkuk Kim , Hiroshi Okada

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

The detection of ultralight dark matter through interactions with nucleons, electrons, and photons has been explored in depth. In this work we propose to use precision muon experiments, specifically muon g-2 and electric dipole moment…

高能物理 - 唯象学 · 物理学 2021-01-04 Ryan Janish , Harikrishnan Ramani

In the Randall-Sundrum model, a bulk neutrino field in the 5-dimensional space-time can give rise to tiny Dirac masses to neutrinos. In such a scenario, we have computed the contribution of the bulk neutrino field to the anomalous magnetic…

高能物理 - 唯象学 · 物理学 2012-09-18 R. S. Hundi , Sourov Roy , Soumitra SenGupta

We propose a new scenario of using the dark axion portal at one-loop level to explain the recently observed muon anomalous magnetic moment by the Fermilab Muon g-2 experiment. Both axion/axion-like particle (ALP) and dark photon are…

高能物理 - 唯象学 · 物理学 2021-10-01 Shao-Feng Ge , Xiao-Dong Ma , Pedro Pasquini

I discuss the history of the muon $(g-2)$ measurements, beginning with the Columbia-Nevis measurement that observed parity violation in muon decay, and also measured the muon $g$-factor for the first time, finding $g_\mu=2$. The theoretical…

高能物理 - 实验 · 物理学 2018-11-19 B. Lee Roberts

We explore the ability of current and future dark matter and collider experiments in probing anomalous magnetic moment of the muon, $(g-2)_\mu$, within the Minimal Supersymmetric Standard Model (MSSM). We find that the latest…

高能物理 - 唯象学 · 物理学 2017-04-05 Archil Kobakhidze , Matthew Talia , Lei Wu

A summary is given of the present status of the theory and experiment of the anomalous magnetic moment of the muon. A difference between predicted and measured values is an indication of physics beyond the Standard Model. A new experimental…

高能物理 - 实验 · 物理学 2009-06-23 J. P. Miller

The electron and muon anomalous magnetic moments (AMM) are measured in experiments and studied in the Standard Model (SM) with the highest precision accessible in particle physics. The comparison of the measured quantity with the SM…

高能物理 - 唯象学 · 物理学 2015-06-19 A. E. Dorokhov , A. E. Radzhabov , A. S. Zhevlakov

The Mu2e experiment will search for coherent, neutrino-less conversion of muons into electrons in the Coulomb field of an aluminum nucleus with a sensitivity of four orders of magnitude better than previous experiments. The signature of…

仪器与探测器 · 物理学 2017-10-12 Alessandra Lucà

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

The Mu2e experiment searches for the neutrino-less muon to electron conversion in the field of a nucleus, which is a charged lepton flavor violating process. The goal of the experiment is to reach a single event sensitivity of 2.8 x…

仪器与探测器 · 物理学 2016-06-20 R. Donghia

A confirmation of the long-standing muon $g$-2 discrepancy requires both experimental and theoretical progress. On the theory side, the hadronic corrections are under close scrutiny, as they induce the leading uncertainty of the Standard…

高能物理 - 唯象学 · 物理学 2020-10-21 A. Masiero , P. Paradisi , M. Passera

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…

高能物理 - 唯象学 · 物理学 2023-01-11 Paride Paradisi , Olcyr Sumensari , Alessandro Valenti

The MUonE experiment proposes a novel approach to determine the leading hadronic contribution to the muon g-2, from a precise measurement of the differential cross section of the $\mu-e$ elastic scattering, achievable by using the CERN SPS…

高能物理 - 实验 · 物理学 2024-01-09 E. Spedicato

Fermilab has been working with the international particle physics and nuclear physics communities to explore and develop research programs possible with a new high intensity proton source known as "Project-X". Project X will provide…

高能物理 - 实验 · 物理学 2011-09-19 R. Tschirhart

A review of the theoretical and experimental values for the charged lepton (electron and muon) anomalous magnetic moment $a_l= (g_l-2)/2$ is presented. Employing the most accurate value for the fine structure constant $\alpha^{-1}=…

高能物理 - 唯象学 · 物理学 2007-05-23 Alexander Studenikin

We study the possibility of probing new physics accounting for $(g-2)_\mu$ anomaly and gravitational waves with pulsar timing array measurements. The model we consider is either a light gauge boson or neutral scalar interacting with muons.…

高能物理 - 唯象学 · 物理学 2021-04-09 Ruiyu Zhou , Ligong Bian , Jing Shu

Two prominent efforts aimed at probing beyond Standard Model physics, searches for a neutron electric dipole moment (EDM) and measurements of the muon $g-2$ anomalous magnetic moment, employ spin precession techniques. In the most recent…

核实验 · 物理学 2017-08-31 N. Nouri , M. A. Brown , R. Golub , B. Plaster