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 题名  Four-jet final state production in e(+)e(-) collisions at centre-of-mass energies ranging from 130 to 184 GeV
 作者  ALEPH Collaboration
 来源  
 单位  中国科学院高能物理研究所
 出版日期  1998
 关键词  Physics,Physics, Multidisciplinary
 摘要  The four jet topology is analysed in the ALEPH data taken between November 1995 and October 1997, at centre-of-mass energies ranging from 130 to 184 GeV, While an unexpected accumulation of events with a dijet mass sum around 105 GeV/c(2) had been observed during the first run in 1995 at 130/136 GeV, corresponding to an integrated luminosity of 5.7 pb(-1), no significant differences between data and standard model prediction is seen, either in the high energy runs (81.1 pb(-1) taken at centre-of-mass energies from 161 to 184 GeV) or in the 7.1 pb(-1) recorded during a new short fun at 130/136 GeV in 1997, We have found no other explanation for the earlier reported "four jet anomaly" than a statistical fluctuation. (C) 1998 Published by Elsevier Science B.V.
 内容类型  期刊论文
 URI标识  http://202.38.128.226/handle/311005/211905