期刊
EUROPEAN PHYSICAL JOURNAL C
卷 70, 期 3, 页码 659-671出版社
SPRINGER
DOI: 10.1140/epjc/s10052-010-1489-x
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资金
- BMBF [05H-09VKE]
- Graduiertenkolleg Hochenergiephysik und Teilchenastrophysik
- [Sonderforschungsbereich/Transregio 9]
Electroweak radiative corrections give rise to large negative, double-logarithmically enhanced corrections in the TeV region. These are partly compensated by real radiation and, moreover, affected by selecting isospin-non-invariant external states. We investigate the impact of real gauge boson radiation more quantitatively by considering different restricted final state configurations. We consider successively a massive abelian gauge theory, a spontaneously broken SU(2) theory and the electroweak Standard Model. We find that details of the choice of the phase space cuts, in particular whether a fraction of collinear and soft radiation is included, have a strong impact on the relative amount of real and virtual corrections.
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