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CLASSIFICATION OF THE HADRONIC DECAYS OF THE Z0 INTO B AND C QUARK PAIRS USING A NEURAL NETWORK

ABREU P.
•
ADAM W.
•
ADYE T.
altro
SCURI, Fabrizio
1992
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
A classifier based on a feed-forward neural network has been used for separating a sample of about 123 500 selected hadronic decays of the Z0, collected by DELPHI during 1991, into three classes according to the flavour of the original quark pair: uuBAR + ddBAR + ssBAR (unresolved), ccBAR and bbBAR. The classification has been used to compute the partial widths of the ZO into b and c quark pairs. This gave GAMMA(ccBAR)/GAMMA(h) = 0.151 +/- 0.008 (stat.) +/- 0.041 (syst.), GAMMA(bbBAR)/GAMMA(h) = 0.232 +/- 0.005 (stat.) +/- 0.017 (syst.).
DOI
10.1016/0370-2693(92)91580-3
WOS
WOS:A1992KB80100029
Archivio
http://hdl.handle.net/11390/882434
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0042863552
Diritti
metadata only access
Scopus© citazioni
40
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
35
Data di acquisizione
Mar 24, 2024
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