Lattice Calculation of the Lowest-Order Hadronic Contribution to the Muon Anomalous Magnetic Moment
نویسندگان
چکیده
منابع مشابه
Lattice calculation of the lowest-order hadronic contribution to the muon anomalous magnetic moment.
We present a quenched lattice calculation of the lowest order [O(alpha(2))] hadronic contribution to the anomalous magnetic moment of the muon which arises from the hadronic vacuum polarization. A general method is presented for computing entirely in Euclidean space, obviating the need for the usual dispersive treatment which relies on experimental data for e(+)e(-) annihilation to hadrons. Whi...
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The anomalous magnetic moment of the muon, aμ, is now known to fantastic precision, both experimentally and theoretically. This situation naturally provides an interesting test of the Standard Model. The largest uncertainty in the calculation of aμ is associated with hadronic contributions; the lowest order in α contribution arises from the hadronic vacuum polarization of the photon. Using the ...
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We compute the next-to-next-to-leading order hadronic contribution to the muon anomalous magnetic moment originating from the photon vacuum polarization. The corresponding three-loop kernel functions are calculated using asymptotic expansion techniques which lead to analytic expressions. Our final result, a μ = 1.24± 0.01 × 10−10, has the same order of magnitude as the current uncertainty of th...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2003
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.91.052001