English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/8524
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2

AutorAbdallah, J.; Martínez-Rivero, Celso ; Rivero, M.; Costa, María José ; Matorras, Francisco ; Cuevas, Javier ; Oyanguren, Arantza ; Marco, Jesús ; Tortosa, Pablo ; Ferrer, Antonio ; Salt, José ; Marco, Rafael ; García García, Carmen ; Gómez-Ceballos, Guillelmo; Rodríguez, David; Fuster, Juan ; Marín, J. C.; López, Juan M. ; Fernández Menéndez, Javier ; Piedra, Jonatan
Palabras claveColour reconnection (CR)
Bose-Einstein Correlations
Hadronic Z(0) Decays
e(+)e(-) Collisions
w+w- events
Pair Production
Identified Particles
e+e- Annihilation
Charged Pions
Final-states
Fecha de publicación5-may-2007
EditorSpringer
Società Italiana di Fisica
CitaciónEuropean Physical Journal C 51(2): 249-269 (2007)
ResumenIn the reaction e(+)e(-) --> WW --> (q(1)(q)over-bar(2))(q(3)(q)over-bar(4)) the usual hadronization models treat the colour singlets q(1)(q)over-bar(2) and q(3)(q)over-bar(4) coming from two W bosons independently. However, since the final state partons may coexist in space and time, cross-talk between the two evolving hadronic systems may be possible during fragmentation through soft gluon exchange. This effect is known as colour reconnection. In this article the results of the investigation of colour reconnection effects in fully hadronic decays of W pairs in DELPHI at LEP are presented. Two complementary analyses were performed, studying the particle flow between jets and W mass estimators, with negligible correlation between them, and the results were combined and compared to models. In the framework of the SK-I model, the value for its κ parameter most compatible with the data was found to be: κ_{SK-I} = 2.2^{+2.5}_{-1.3} corresponding to the probability of reconnection P_{reco} to be in the range 0.31 < P_{reco} < 0.68 at 68% confidence level with its best value at 0.52.
Descripción21 páginas, 18 figuras, 6 tablas.-- El Pdf del artículo es la versión pre-print: arXiv:0704.0597v1.-- DELPHI Collaboration: et al.
Versión del editorhttp://dx.doi.org/10.1140/epjc/s10052-007-0304-9
URIhttp://hdl.handle.net/10261/8524
DOI10.1140/epjc/s10052-007-0304-9
ISSN1434-6044 (Print)
1434-6052 (Online)
Aparece en las colecciones: (IFCA) Artículos
(IFIC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
0704.0597v1.pdf458,53 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.