منابع مشابه
Bhabha Scattering at NNLO
We review the status of the calculation of next-to-next-to-leading order corrections to large angle Bhabha scattering in pure QED. After discussing the electron-loop and photonic corrections, we focus on the recently calculated two-loop virtual corrections involving a heavy-flavor fermion loop. We conclude by assessing the numerical impact of these corrections on the Bhabha scattering cross sec...
متن کاملBhabha Scattering at High Energies
A study of the process, e+e---) e+e-7, where at least one electron scatters at a small angle is presented. Calculations of the process to order o3 and cr4 are reviewed and compared with data from the PEP storage ring. An analysis of data from the Mark II detector shows good agreement with the order cx4 calculation for e7 final states. Preliminary results from the ASP detector agree well with th...
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چکیده ندارد.
15 صفحه اولTwo-Loop Bhabha Scattering in QED
In the context of pure QED, we obtain analytic expressions for the contributions to the Bhabha scattering differential cross section at order α4 which originate from the interference of two-loop photonic vertices with tree-level diagrams and from the interference of one-loop photonic diagrams amongst themselves. The ultraviolet renormalization is carried out. The IR-divergent soft-photon emissi...
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ژورنال
عنوان ژورنال: Medicine Anthropology Theory
سال: 2020
ISSN: 2405-691X
DOI: 10.17157/mat.7.2.687