Search results for "LEP HERA and SLC Physics"

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Calculation of the two-loop heavy-flavor contribution to Bhabha scattering

2008

We describe in detail the calculation of the two-loop corrections to the QED Bhabha scattering cross section due to the vacuum polarization by heavy fermions. Our approach eliminates one mass scale from the most challenging part of the calculation and allows us to obtain the corrections in a closed analytical form. The result is valid for arbitrary values of the heavy fermion mass and the Mandelstam invariants, as long as s,t,u >> m_e^2.

PhysicsNuclear and High Energy PhysicsParticle physicsStandard Model530 PhysicsElectromagnetic Processes and PropertiesHigh Energy Physics::PhenomenologyFOS: Physical sciencesFermionLEP HERA and SLC PhysicsLoop (topology)High Energy Physics - PhenomenologyCross section (physics)High Energy Physics - Phenomenology (hep-ph)10231 Institute for Computational ScienceHeavy fermionMass scaleVacuum polarization3106 Nuclear and High Energy PhysicsFlavorBhabha scatteringJournal of High Energy Physics
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