Two-Loop Heavy-Flavor Contribution to Bhabha Scattering

Details Two-Loop Heavy-Flavor Contribution to Bhabha Scattering Two-Loop Heavy-Flavor Contribution to Bhabha Scattering

2007-10-25

arxiv.org/abs/0710.4775v3

Phys.Rev.Lett.100:131601,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 6 figures. Equations in the appendix generalized to the heavy-quark case

Scientific paper

10.1103/PhysRevLett.100.131601

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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