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RESEARCH PRODUCT
Heavy-Flavor Contribution to Bhabha Scattering
Roberto BoncianiAndrea FerrogliaAlexander A. Peninsubject
Scattering cross-sectionPhysicsParticle physicsMuon530 PhysicsGeneral Physics and AstronomyFermion3100 General Physics and AstronomyNuclear physics10231 Institute for Computational ScienceCharm (quantum number)Vacuum polarizationMass hierarchyBhabha scatteringdescription
We evaluate the last missing piece of the two-loop QED corrections to the high-energy electron-positron scattering cross section originating from the vacuum polarization by heavy fermions. The calculation is performed within a new approach applicable to a wide class of perturbative problems with mass hierarchy. The result is crucial for the high-precision physics program at existing and future e(+) e(-) colliders.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-01-01 | Physical Review Letters |