Vacuum polarization function toO(α2)accuracy near threshold and Darwin corrections
نویسندگان
چکیده
منابع مشابه
The Vacuum Polarization Function to O(α) Accuracy Near Threshold and Darwin Corrections
The QED vacuum polarization function is calculated to O(α) (next-to-leading order) accuracy in the threshold regime by using the concept of effective field theories to resum diagrams with the instantaneous Coulomb exchange of longitudinally polarized photons. It is shown that the O(α) contributions are of order α in size rather than α/π. The vacuum polarization contributions to the O(α) hyperfi...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1998
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.57.1615