Predictions for all processes e+e-→fermions+γ

被引：350

作者：

Denner, A ^{[1
]}

Dittmaier, S

Roth, M

Wackeroth, D

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[2] Univ Bielefeld, D-33615 Bielefeld, Germany

[3] ETH Honggerberg, Inst Theoret Phys, CH-8093 Zurich, Switzerland

来源：

NUCLEAR PHYSICS B | 1999年 / 560卷 / 1-3期

关键词：

gauge-boson production; four-fermion production; helicity amplitudes; Monte Carlo integration; electromagnetic corrections;

D O I：

10.1016/S0550-3213(99)00437-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

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. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：33 / 65

页数：33

共 59 条

[1] ANOMALOUS QUARTIC COUPLINGS IN W(+)W(-)GAMMA-PRODUCTION AT E(+)E(-) COLLIDERS [J].