Electroweak double logarithms in inclusive observables for a generic initial state
Preprint
- 11 July 2000
Abstract
High energy observables are characterized by large electroweak radiative corrections of infrared origin; double logarithms are present even for inclusive cross sections, thus violating the Bloch Nordsieck theorem. This effect, related to the initial states carrying nonabelian isospin charges, is here investigated for {\sl any} inclusive cross section in the SU(2)$\otimes$U(1) symmetric limit, that is appropriate for energies much higher than the weak scale. We develop a general formalism allowing to calculate the all order double log resummed cross sections once the hard (tree level) ones are known. The relevant cases of fermion-fermion, fermion-boson and boson-boson scattering are discussed.Keywords
All Related Versions
- Version 1, 2000-07-11, ArXiv
- Published version: Physics Letters B, 501 (3-4), 216.
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