Lowest order hadronic contribution to the muong−2value with systematic error correlations
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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Sum rule constraints dominated by the independent high-scale input, αs(MZ), are shown to be satisfied by I = 1 spectral data from hadronic τ decays, but violated by the pre-2005 electroproduction (EM) cross-section data. Determinations of the Standard Model (SM) hadronic contribution to (g−2)μ incorporating τ decay data are thus favored over those based solely on EM data, implying a SM predicti...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1996
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.54.3237