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2007-10-25
Two-Loop Heavy-Flavor Contribution to Bhabha Scattering
R. BoncianiA. FerrogliaA. A. Penin
文献摘要
We evaluate the two-loop QED corrections to the Bhabha scattering cross section which involve the vacuum polarization by heavy fermions of arbitrary mass m_f >> m_e. The results are valid for generic values of the Mandelstam invariants s,t,u >> m_e^2.
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