Measurement of an elongation of the pion source in Z decays

We measure Bose-Einstein correlations between like-sign charged pion pairs in hadronic Z decays with the L3 detector at LEP. The analysis is performed in three dimensions in the longitudinal center-of-mass system. The pion source is found to be elongated along the thrust axis with a ratio of transve...

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Detalles Bibliográficos
Autores: Dova, María Teresa, Lacentre, Pablo E., L3 Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/78063
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78063
Access Level:acceso abierto
Palabra clave:Ciencias Exactas
Física
Bose-Einstein correlations
pion pairs
Z decays
L3 detector
Descripción
Sumario:We measure Bose-Einstein correlations between like-sign charged pion pairs in hadronic Z decays with the L3 detector at LEP. The analysis is performed in three dimensions in the longitudinal center-of-mass system. The pion source is found to be elongated along the thrust axis with a ratio of transverse to longitudinal radius of 0.81±0.02+0.03−0.19.