Predictions for all processes e^+e^- -> 4 fermions + gamma
高能物理 - 唯象学
2008-11-26 v2
摘要
The complete matrix elements for e^+ e^- -> 4f and e^+ e^- -> 4f + gamma are calculated in the Electroweak Standard Model for polarized massless fermions. The matrix elements for all final states are reduced to a few compact generic functions. Monte Carlo generators for e^+ e^- -> 4f and e^+ e^- -> 4f + gamma are constructed. We compare different treatments of the finite widths of the electroweak gauge bosons; in particular, we include a scheme with a complex gauge-boson mass that obeys all Ward identities. The detailed discussion of numerical results comprises integrated cross sections as well as photon-energy distributions for all different final states.
引用
@article{arxiv.hep-ph/9904472,
title = {Predictions for all processes e^+e^- -> 4 fermions + gamma},
author = {A. Denner and S. Dittmaier and M. Roth and D. Wackeroth},
journal= {arXiv preprint arXiv:hep-ph/9904472},
year = {2008}
}
备注
32 pages, LaTeX, 14 eps figures, one reference added, to appear in Nucl. Phys. B