CALCULATION OF Z-PLUS-4 JET PRODUCTION AT THE TEVATRON

被引：8

作者：

BARGER, V

MIRKES, E

PHILLIPS, RJN

STELZER, T

机构：

[1] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[2] UNIV DURHAM, DEPT PHYS, DURHAM DH1 3LE, ENGLAND

来源：

PHYSICS LETTERS B | 1994年 / 338卷 / 2-3期

关键词：

D O I：

10.1016/0370-2693(94)91388-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first calculation of Z + 4 jet production with heavy quark flavor identification at the Tevatron <p(p)over bar> collider. The Z + 4 jet channel is especially interesting as a normalizer for the W + 4 jet background to top quark signals, as a background to a possible t --> cZ flavor-changing neutral-current (FCNC) decay signal, and as a background to missing-p(tau) signals from gluino pairs. We also calculate the contributions to W + 4 jet production from all the different heavy-flavor final states. The MADGRAPH program is used to generate all leading order subprocess helicity amplitudes. We present Monte Carlo results with separation and acceptance criteria suitable for the Tevatron experimental analyses. The dependence of the cross sections on experimental cuts and the theoretical ambiguities due to the scale dependence are discussed. The predicted (W + 4 jet)/(Z + 4 jet) ratio is insensitive to most of these choices.

引用

页码：336 / 340

页数：5

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