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Related papers: The Physics Case for the New Muon (g-2) Experiment

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The anomalous magnetic moment (g-2) of the muon was measured with a precision of 0.54 ppm in Experiment 821 at Brookhaven National Laboratory. A difference of 3.2 standard deviations between this experimental value and the prediction of the…

Nuclear Experiment · Physics 2019-08-15 Frederick Gray

The anomalous magnetic moment of the muon has been measured to 0.5 ppm in a series of precision experiments at the Brookhaven Alternating Gradient Synchrotron. The individual results for each sign: a(mu+)= 11 659 204(7)(5) E-10 and a(mu-) =…

High Energy Physics - Phenomenology · Physics 2007-05-23 Priscilla Cushman

After a brief review of the muon g-2 status, we discuss hypothetical errors in the Standard Model prediction that might explain the present discrepancy with the experimental value. None of them seems likely. In particular, a hypothetical…

High Energy Physics - Phenomenology · Physics 2015-05-18 M. Passera , W. J. Marciano , A. Sirlin

After a brief review of the muon g-2 status, we discuss hypothetical errors in the Standard Model prediction that could explain the present discrepancy with the experimental value. None of them looks likely. In particular, an hypothetical…

High Energy Physics - Phenomenology · Physics 2009-04-06 M. Passera , W. J. Marciano , A. Sirlin

The New Muon $(g-2)$ Collaboration at Fermilab has proposed to measure the anomalous magnetic moment of the muon, $a_\mu$, a factor of four better than was done in E821 at the Brookhaven AGS, which obtained $a_\mu = [116 592 089 (63)]…

High Energy Physics - Experiment · Physics 2011-01-05 B. Lee Roberts

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

The Muon g-2 collaboration has measured the anomalous magnetic g value, a = (g-2)/2, of the positive muon with an unprecedented uncertainty of 0.7 parts per million. The result, based on data collected in the year 2000 at Brookhaven…

High Energy Physics - Experiment · Physics 2019-08-14 E. P. Sichtermann

The Muon g-2 experiment at Fermilab will measure the anomalous magnetic moment of the muon to a precision of 140 parts per billion, which is a factor of four improvement over the previous E821 measurement at Brookhaven. The experiment will…

High Energy Physics - Experiment · Physics 2018-07-01 J. L. Holzbauer

A new measurement of the anomalous magnetic moment of the muon, $a_{\mu} \equiv (g-2)/2$, will be performed at the Fermi National Accelerator Laboratory with data taking beginning in 2017. The most recent measurement, performed at…

High Energy Physics - Experiment · Physics 2016-11-16 W. Gohn

The Muon g-2 Experiment at Fermilab will measure the anomalous magnetic moment of the muon to a precision of 140 parts per billion, which is a factor of four improvement over the previous E821 measurement at Brookhaven. The experiment will…

Instrumentation and Detectors · Physics 2017-01-04 J. L. Holzbauer

The Muon g-2 experiment at FERMILAB has confirmed the muon anomalous magnetic moment anomaly with an error bar 15% smaller and a different central value compared with the previous Brookhaven result. The combined results from FERMILAB and…

High Energy Physics - Phenomenology · Physics 2022-08-17 Giorgio Arcadi , Álvaro S. de Jesus , Téssio B. de Melo , Farinaldo S. Queiroz , Yoxara S. Villamizar

After a brief review of the muon g-2 status, we analyze the possibility that the present discrepancy between experiment and the Standard Model (SM) prediction may be due to hypothetical errors in the determination of the hadronic…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Passera , W. J. Marciano , A. Sirlin

The muon magnetic anomaly, $a_{\mu}$, is a powerful test of the Standard Model of particle physics. A new experiment at Fermilab has recently measured $a_{\mu}$ with unprecedented precision, confirming the results of the earlier Brookhaven…

High Energy Physics - Experiment · Physics 2022-05-16 K. R. Labe

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

The magnetic moment is a fundamental property of particles. The measurement of these magnetic moments and the comparison with the values predicted by the standard model of particle physics is a way to test our understanding of the…

High Energy Physics - Experiment · Physics 2015-12-23 M. Eads

The precise measurement of the muon anomalous magnetic moment $a_\mathrm{\mu}$ has stimulated much theoretical and experimental efforts over more than six decades. The last experiment at Brookhaven National Laboratory, Upton, NY, USA…

Instrumentation and Detectors · Physics 2016-10-25 Martin Fertl

The Muon (g-2) Experiment (E821) at Brookhaven National Laboratory (BNL) has measured the anomalous magnetic moment of the positive muon to an unprecedented precision of 1.3 parts per million. The result, a_{\mu^+} = (g-2)/2 = 11 659…

High Energy Physics - Experiment · Physics 2012-08-27 2 Collaboration , O. Rind

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…

High Energy Physics - Phenomenology · Physics 2008-11-26 James P. Miller , Eduardo de Rafael , B. Lee Roberts

The longstanding discrepancy between the measured and the predicted values of the anomalous magnetic moment of the muon, $a_\mu = (g-2)/2$, is one of the most intriguing potential hints of new physics in particle physics. After a brief…

High Energy Physics - Phenomenology · Physics 2023-01-18 Bogdan Malaescu

A brief review is given of the implications of the recent Brookhaven result on the muon anomaly ($a_{\mu}$) for supersymmetry. We focus mainly on the implications of the recent results for the minimal supergravity unified model. We show…

High Energy Physics - Phenomenology · Physics 2011-01-27 Utpal Chattopadhyay , Pran Nath