Chargino pair production at LEP2 with broken R-parity: 4-jet final states

被引：14
作者：
Dreiner, H
Lola, S
Morawitz, P
机构：
[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, BLACKETT LAB, HEP GRP, LONDON SW7 2BZ, ENGLAND
[2] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND
[3] CERN, TH, CH-1211 GENEVA 23, SWITZERLAND
来源：
PHYSICS LETTERS B | 1996年 / 389卷 / 01期
关键词：
D O I：
10.1016/S0370-2693(96)01236-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the pair production of charginos in e(+)e(-)-collisions followed by the decay via R-parity violating LQ(D) over bar operators. We determine the complete matrix element squared for chargino decays via LQ(D) over bar or LL(E) over bar operators. We find regions in MSSM parameter space where the chargino mass is 52.5 GeV and the R-parity violating decays of the charginos dominate the gauge decays to neutralinos. At LEP2 this then leads to additional 4 jet events which could explain the excess recently observed by ALEPH.
引用
收藏
页码：62 / 72
页数：11
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