Higher order QED corrections to Bhabha scattering at low angles
نویسندگان
چکیده
منابع مشابه
Two-loop QED Corrections to Bhabha Scattering
Bhabha scattering, ee → ee, is a crucial process in the phenomenology of particle physics. Its relevance is mainly due to the fact that it is the process employed to determine the luminosity L at ee colliders: in fact, L = NBhabha/σth, where NBhabha is the rate of Bhabha events and σth is the Bhabha scattering cross section calculated from theory. Two kinematic regions are of special interest f...
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متن کاملTwo-loop QED hadronic corrections to Bhabha scattering
Theoretical predictions for Bhabha scattering at the two-loop level require the inclusion of hadronic vacuum polarization in the photon propagator. We present predictions for the contributions from reducible amplitudes which are proportional to the vacuum polarization π(q) and from irreducible ones where the vacum polarization appears in a loop representing vertex or box diagramms. The second c...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1991
ISSN: 0370-2693
DOI: 10.1016/0370-2693(91)91640-h