A STUDY OF MULTI-JET EVENTS AT THE CERN PPBAR COLLIDER AND A SEARCH FOR DOUBLE PARTON SCATTERING

被引：134

作者：

ALITTI, J

机构：

[1] Centre d'Etudes Nucléaires de Saclay

[2] Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, I-27100 Pavia

[3] Laboratoire de l'Accélératuer Linéaire, Université de Paris-Sud

[4] Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado

[5] School of Physics, University of Melbourne, Parkville

[6] CERN

[7] Laboratorium für Hochenergiephysik, Universität Bern, CH-3012 Bern

[8] Dipartimento di Fisica dell'Università di Milano, INFN, Sezione di Milano

[9] Dipartimento di Fisica dell'Universidà di Perugia, INFN, Sezione di Perugia, I-06100 Perugia, via Pascoli

[10] Canvendish Laboratory, University of Cambridge, Cambridge

[11] Universität Dortmund

[12] Institut für Hochenergiephysik der Universität Heidelberg, W-6900 Heidelberg

来源：

PHYSICS LETTERS B | 1991年 / 268卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/0370-2693(91)90937-L

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A study of events containing at least four high transverse momentum jets and a search for double parton scattering (DPS) have been performed using data collected with the UA2 detector at the CERN ppBAR Collider (square-root s = 630 GeV). The results are in good agreement with leading order QCD calculations. A value of sigma-DPS < 0.82 nb at 95% confidence level (CL) is obtained for the DPS cross section.

引用

页码：145 / 154

页数：10

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