Four jet final state production in e+ e- collisions at center-of-mass energies ranging from 130-GeV to 184-GeV

ALEPH Collaboration, The and Barate, R. and Betteridge, Andrew and Bowdery, Christopher and Colrain, Paul and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger and Whelan, Edmund and Williams, Mark (1998) Four jet final state production in e+ e- collisions at center-of-mass energies ranging from 130-GeV to 184-GeV. Physics Letters B, 420 (1-2). pp. 196-204. ISSN 0370-2693

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Abstract

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/c2 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 run at 130/136 GeV in 1997. We have found no other explanation for the earlier reported “four jet anomaly” than a statistical fluctuation.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
63997
Deposited By:
Deposited On:
15 May 2013 09:27
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:26