The Standard Model Prediction for Muon G − 2
نویسنده
چکیده
The present Standard Model prediction for muon g − 2 is reviewed. Emphasis is put in discussing the main hadronic uncertainties at present. August 2001 Invited talk at “Kaon 2001”, 6-13 June 2001, Pisa, Italy. Work supported in part by the European Union TMR Network EURODAPHNE (Contract No. ERBFMX-CT98-0169), by MCYT, Spain (Grant No. FPA2000-1558), and by Junta de Andalućıa, (Grant No. FQM-101).
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ضریب گشتاور مغناطیسی لپتون باردار در فضا- زمان ناجابهجایی
The g-factor of the charged leptons has always been considered by many physicists, both experimentaly as well as theoretically. In fact the electron and muon g-factor play the main role in testing the QED as well as the standard model. Meanwhile, there is a discrepancy between the standard model prediction of the muon anomalies magnetic moment and its experimental determination as large as (25...
متن کاملThe Standard Model Prediction for Muon G − 2 December 2001
The present Standard Model prediction for muon g − 2 is reviewed. Emphasis is put in discussing the main hadronic uncertainties. December 2001 Invited talk at “Kaon 2001”, 6-13 June 2001, Pisa, Italy. Work supported in part by the European Union TMR Network EURODAPHNE (Contract No. ERBFMX-CT98-0169), by MCYT, Spain (Grant No. FPA2000-1558), and by Junta de Andalućıa, (Grant No. FQM-101).
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The current status of the Standard Model predictions for the muon anomalous magnetic moment is described. Various contributions expected in the Standard Model are discussed. After the reeval-uation of the leading-order hadronic term based on the new e + e − data, the theoretical prediction is more than three standard deviations lower than the experimental value.
متن کاملar X iv : h ep - p h / 99 04 44 5 v 2 2 9 A pr 1 99 9 Muon g − 2 and New Physics
Here we invoke the current and future perspective on muon g −2 measurement when asking what the muon g − 2 could tell about the underlying structure concerning with the hierarchy problem. Here we take up two such models, the presence of which turns out to alter the standard model prediction for muon g − 2 significantly: one is TeV scale gravity scenario, the other supersymmetric model, in the l...
متن کاملar X iv : h ep - p h / 99 04 44 5 v 1 2 4 A pr 1 99 9 Muon g − 2 and New Physics
Here we invoke the current and future perspective on muon g −2 measurement when asking what the muon g − 2 could tell about the underlying structure concerning with the hierarchy problem. Here we take up two such models, the presence of which turns out to alter the standard model prediction for muon g − 2 significantly: one is TeV scale gravity scenario, the other supersymmetric model, in the l...
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