Study of Intermittency in Electron - Positron Annihilation Into Hadrons - INSPIRE

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Study of Intermittency in Electron - Positron Annihilation Into Hadrons

TASSO

Collaboration

•

W. Braunschweig
(
- Aachen, Tech. Hochsch.
)

Jul, 1989

9 pages

Published in:

Phys.Lett.B 231 (1989) 548-556

Published: 1989

DOI:

10.1016/0370-2693(89)90707-7

Report number:

DESY-89-092,
WIS-89-33-PH

Experiments:

DESY-PETRA-TASSO

View in:

ADS Abstract Service

reference search136 citations

Citations per year

Abstract: (Elsevier)

Intermittency effects have been studied directly for the first time in e + e − annihilation, using 37 509 hadronic events at an average CM energy of 〈√ s 〉=35 GeV. The factorial moments F 2 , F 3 and F 4 are given for the rapidity distribution and for the two-dimensional distributions in rapidity and azimuthal angle. The effects of cuts in sphericity and particle momentum are large. Comparison with several fragmentation models are made; some models like the Lund model with O(α s 2 ) matrix element give a qualitative description of the phenomena. The importance of detector effects is demonstrated. The results are discussed in terms of various suggested interpretations of this effect.

electron positron: annihilation
electron positron: colliding beams
hadron: electroproduction
rapidity spectrum
intermittency
model: fragmentation
counters and detectors: effect
TASSO
experimental results
DESY PETRA Stor

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