Contact interactions and high-Q(2) events in e(+)p collisions at HERA

被引：30

作者：

Barger, V

Cheung, KM

Hagiwara, K

Zeppenfeld, D

机构：

[1] UNIV TEXAS,CTR PARTICLE PHYS,AUSTIN,TX 78712

[2] NATL LAB HIGH ENERGY PHYS,KEK,THEORY GRP,TSUKUBA,IBARAKI 305,JAPAN

[3] UNIV TOKYO,ICEPP,BUNKYO KU,TOKYO 113,JAPAN

来源：

PHYSICS LETTERS B | 1997年 / 404卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(97)00517-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider eeqq contact interactions as a possible origin of an excess of events above Standard Model predictions in e(+)p --> e(+) jet at high Q(2) observed by the H1 and ZEUS Collaborations at HERA. The HERA data prefer chirality RL or LR contact terms and atomic physics parity violation measurements severely limit parity-odd contact terms. With equal left-right and right-left chirality interactions at an effective scale of order 3 TeV we are able to reproduce the main features of the HERA data and still be consistent with Drell-Yan pair production at the Tevatron and hadron production at LEP2 and TRISTAN. (C) 1997 Elsevier Science B.V.

引用

页码：147 / 152

页数：6

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