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hep-ph2022
Chiral extrapolation of hadronic vacuum polarization and isospin-breaking corrections
Martin Hoferichter, Gilberto Colangelo, Bai-Long Hoid +4
By far the biggest contribution to hadronic vacuum polarization (HVP) arises from the two-pion channel. Its quark-mass dependence can be evaluated by combining dispersion relations…
hep-ph2022★ 62 cited
Isospin-breaking effects in the two-pion contribution to hadronic vacuum polarization
Gilberto Colangelo, Martin Hoferichter, Bastian Kubis +1
Isospin-breaking (IB) effects in the two-pion contribution to hadronic vacuum polarization (HVP) can be resonantly enhanced, if related to the interference of the and $ω(7…