LEP DATA AND THE LIGHT GLUINO WINDOW

被引：30

作者：

ANTONIADIS, I

ELLIS, J

NANOPOULOS, DV

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

[2] HOUSTON ADV RES CTR,ASTROPARTICLE PHYS GRP,THE WOODLANDS,TX 77831

[3] TEXAS A&M UNIV SYST,CTR THEORET PHYS,DEPT PHYS,COLLEGE STN,TX 77843

来源：

PHYSICS LETTERS B | 1991年 / 262卷 / 01期

关键词：

D O I：

10.1016/0370-2693(91)90652-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

LEP data on hadronic final states are known to be consistent with the asymptotic freedom expected for QCD. We use this consistency to constrain the number of light strongly-interacting degrees of freedom. In particular, we use DELPHI data to exclude light gluinos weighing < 5 GeV, and determine the number of light quarks to be 5.3 +/- 1.5 on the basis of a comparison between LEP, deep inelastic and UPSILON-decay data. The absence of a light gluino means that supersymmetric model-builders must incorporate a primordial gaugino mass.

引用

页码：109 / 112

页数：4

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