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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 544585.0, MPI für Physik / MPI für Physik
Electroweak corrections to charged-current e+e- -> 4fermion processes --technical details and further results
Authors:Denner, A.; Dittmaier, S.; Roth, M.; Wieders, L. H.
Date of Publication (YYYY-MM-DD):2005
Title of Journal:Nuclear Physics B
Journal Abbrev.:Nucl.Phys.B
Issue / Number:724
Start Page:247
End Page:294
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The complete electroweak O(alpha) corrections have been calculated for the charged-current four-fermion production processes e+e- --> nu_tau tau+ mu- anti-nu_mu, u anti-d mu- anti-nu_mu, and u anti-d s anti-c. Here, technical details of this calculation are presented. These include the algebraic reduction of spinor chains to a few standard structures and the consistent implementation of the finite width of the W boson. To this end, a generalization of the complex-mass scheme to the one-loop level is proposed, and the practical application of this method is described. Finally, the effects of the complete O(alpha) corrections to various differential cross sections of physical interest are discussed and compared to predictions based on the double-pole approximation, revealing that the latter approximation is not sufficient to fully exploit the potential of a future linear collider in an analysis of W-boson pairs at high energies.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:50 pages, latex, 28 postscript figures, version to appear in Nucl. Phys. B, minor revisions of text, results unchanged
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2005-23
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/hep-ph/0505042
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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