Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays

We have measured the probability, nga cc , of a gluon splitting into a charm-quark pair using 1.7 million hadronic Z decays collected by the L3 detector. Two independent methods have been applied to events with a three-jet topology. One method relies on tagging charmed hadrons by identifying a lepto...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Ciencias Exactas
Física
gluon splitting
charm-quark pair
Z decays
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/75553
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-75553
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
gluon splitting
charm-quark pair
Z decays
spellingShingle Ciencias Exactas
Física
gluon splitting
charm-quark pair
Z decays
Dova, María Teresa
L3 Collaboration
Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays
topic_facet Ciencias Exactas
Física
gluon splitting
charm-quark pair
Z decays
description We have measured the probability, nga cc , of a gluon splitting into a charm-quark pair using 1.7 million hadronic Z decays collected by the L3 detector. Two independent methods have been applied to events with a three-jet topology. One method relies on tagging charmed hadrons by identifying a lepton in the lowest energy jet. The other method uses a neural network based on global event shape parameters. Combining both methods, we measure <math><mtext>n</mtext><msub><mi></mi><mn><mtext>g→c</mtext><mtext>c</mtext><mtext>̄</mtext></mn></msub><mtext>=[2.45±0.29±0.53]%</mtext></math>.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays
title_short Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays
title_full Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays
title_fullStr Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays
title_full_unstemmed Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays
title_sort measurement of the probability of gluon splitting into charmed quarks in hadronic z decays
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/75553
work_keys_str_mv AT dovamariateresa measurementoftheprobabilityofgluonsplittingintocharmedquarksinhadroniczdecays
AT l3collaboration measurementoftheprobabilityofgluonsplittingintocharmedquarksinhadroniczdecays
bdutipo_str Repositorios
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