During the LEP run at root s = 130 - 140 GeV the ALEPH Collaboration reported a significant excess in the rate of four-jet production and a structure in the invariant mass spectrum. This structure was confirmed by ALEPH during the other two runs of LEP at root s = 161 and 172 GeV. The other three LEP experiments did not find any significant evidence for the same signal. A LEP working group was convened to study the subject. The main results of this work are reported and discussed in this paper.
The LEP four-jets puzzle / Faccini, Riccardo. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 65:(1998), pp. 292-296. [10.1016/S0920-5632(97)01016-5]
The LEP four-jets puzzle
FACCINI, Riccardo
1998
Abstract
During the LEP run at root s = 130 - 140 GeV the ALEPH Collaboration reported a significant excess in the rate of four-jet production and a structure in the invariant mass spectrum. This structure was confirmed by ALEPH during the other two runs of LEP at root s = 161 and 172 GeV. The other three LEP experiments did not find any significant evidence for the same signal. A LEP working group was convened to study the subject. The main results of this work are reported and discussed in this paper.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.