HADRON RADIATION IN LEPTONIC-Z DECAYS

Authors
HOANG AH JEZABEK M KUHN JH TEUBNER T
Citation
Ah. Hoang et al., HADRON RADIATION IN LEPTONIC-Z DECAYS, Physics letters. Section B, 325(3-4), 1994, pp. 495-499
Citations number
8
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
325
Issue
3-4
Year of publication
1994
Pages
495 - 499
Database
ISI
SICI code
0370-2693(1994)325:3-4<495:HRILD>2.0.ZU;2-B
Abstract
The rate for the final state radiation of hadrons in leptonic Z decays is evaluated, using as input experimental data for sigma(e+e- --> had rons) in the low energy region. Configurations with a lepton pair of l arge and a hadronic state of low invariant mass are dominant. A relati ve rate GAMMA(llhadBAR) = 6.3 x 10(-4) is calculated. This result is a bout twice the prediction based on a parton model calculation with a q uark mass of 300 MeV. The rate for secondary production of heavy quark s is calculated in the same formalism.