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Measurement of A(FB)(b anti-b) in hadronic Z decays using a jet charge technique

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Measurement of A(FB)(b anti-b) in hadronic Z decays using a jet charge technique

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Alemany Fernández, Reyes
dc.contributor.author	Cabrera Urbán, Susana
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Gil Botella, Inés
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Salt Cairols, José
dc.date.accessioned	2014-03-28T13:52:26Z
dc.date.available	2014-03-28T13:52:26Z
dc.date.issued	1999
dc.identifier.citation	DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Martínez Vidal, Fernando Navas, S. Salt Cairols, José 1999 Measurement of A(FB)(b anti-b) in hadronic Z decays using a jet charge technique European Physical Journal C 9 367 381
dc.identifier.uri	http://hdl.handle.net/10550/33768
dc.description.abstract	The b {b} forward-backward asymmetry has been determined from the average charge flow measured in a sample of 3,500,000 hadronic Z decays collected with the DELPHI detector in 1992-1995. The measurement is performed in an enriched b {b} sample selected using an impact parameter tag and results in the following values for the b {b} forward-backward asymmetry: AFBb\overline{b} (89.55 GeV) = 0.068 ± 0.018 (stat.)± 0.0013(syst.) AFBb\overline{b} (91.26 GeV) = 0.0982±0.0047(stat.)±0.0016(syst.) AFBb\overline{b} (92.94 GeV) = 0.123 ± 0.016 (stat.)± 0.0027(syst.) The b {b} charge separation required for this analysis is directly measured in the b tagged sample, while the other charge separations are obtained from a fragmentation model precisely calibrated to data. The effective weak mixing angle is deduced from the measurement to be: sin2θeffl= 0.23186±0.00083
dc.relation.ispartof	European Physical Journal C, 1999, vol. 9, p. 367-381
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Measurement of A(FB)(b anti-b) in hadronic Z decays using a jet charge technique
dc.type	journal article	es_ES
dc.date.updated	2014-03-28T13:52:26Z
dc.identifier.doi	10.1007/s100520050030
dc.identifier.idgrec	006672
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1007/s100520050030