Complete initial state QED corrections to off-shell gauge boson pair production in e(+)e(-) annihilation

被引：11

作者：

Bardin, D ^{[1
]}

Lehner, D ^{[1
]}

Riemann, T ^{[1
]}

机构：

[1] UNIV FREIBURG, FAK PHYS, D-79104 FREIBURG, GERMANY

来源：

NUCLEAR PHYSICS B | 1996年 / 477卷 / 01期

关键词：

heavy gauge-boson production; electromagnetic corrections; e(+)e(-) annihilation; four-fermion production;

D O I：

10.1016/0550-3213(96)00354-9

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：

We study Standard Model four-fermion production in e(+)e(-) annihilation at LEP2 energies and above using a semi-analytical approach. We derive the complete QED initial state corrections (ISR) to the reactions e(+)e(-) --> (Z(0)Z(0)) --> f(1)<(f)over bar (1)>f(2)<(f)over bar (2)> and e(+)e(-) --> (W+W-) --> <(f)over bar (u)(1)>f(1)(e)f(2)(u)<(f)over bar (d)(2)> with f(1) not equal f(2) and f(i) not equal e(+/-), ((-))nu(e). As compared to the well-known universal s-channel ISR, additional complexity arises due to non-universal, process-dependent ISR contributions from t- and u-channel fermion exchanges. The formulae needed to perform numerical calculations are given together with samples of numerical results.

引用

页码：27 / 58

页数：32

共 45 条

[1]

Abell M.L., 1992, The Mathematica Handbook

[2] HARD BREMSSTRAHLUNG PROCESSES AT LEP-II [J].