Can the Aleph four-jet excess be explained in a supersymmetric model with R-parity violation?

被引：7

作者：

Ghosh, DK

Godbole, RM

Raychaudhuri, S

机构：

[1] INDIAN INST SCI,CTR THEORET STUDIES,BANGALORE 560012,KARNATAKA,INDIA

[2] TATA INST FUNDAMENTAL RES,THEORET PHYS GRP,MUMBAI 400005,INDIA

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1997年 / 75卷 / 02期

关键词：

D O I：

10.1007/s002880050479

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 investigate the possibility that the excess of four-jet events in e(+)e(-) collisions at LEP-1.5 which has been reported by the ALEPH Collaboration could be due to the production of charginos or neutralinos. followed by their decay into quark jets through baryon number-violating (lambda'') couplings. An estimate at the parton level shows, however, that these events cannot be due to neutralinos because of the low cross-section, and is unlikely to be due to the production of chargino pairs because of the largely different event shapes.

引用

页码：357 / 365

页数：9

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