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First measurement of the strange quark asymmetry at the z(0) peak

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First measurement of the strange quark asymmetry at the z(0) peak

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Chrin, J. T. M.
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	Gómez Cadenas, Juan José
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Hernando Morata, José Ángel
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Lozano Bahilo, José Julio
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.date.accessioned	2014-05-12T11:55:13Z
dc.date.available	2014-05-12T11:55:13Z
dc.date.issued	1995
dc.identifier.citation	DELPHI Collaboration Castillo Giménez, María Victoria Ferrer Soria, Antonio Higón Rodríguez, Emilio 1995 First measurement of the strange quark asymmetry at the z(0) peak Zeitschrift für Physik C-Particles and Fields 67 1 1 13
dc.identifier.uri	http://hdl.handle.net/10550/35043
dc.description.abstract	A measurement of the strange quark forward-backward asymmetry at the Z0 peak was performed using 718,000 multihadronic Z0 decays collected by the DELPHI detector at LEP in 1992. Thes-quark was tagged by the presence of high momentum charged kaons identified by the Ring Imaging Cherenkov detector and byΛ 0;s decaying intopπ−. Thes-quark purity obtained was estimated for the two hadrons to be 43%. The averages-quark asymmetry was found to be 0.131±0.035 (stat.) ±0.013 (syst.). The forward-backward asymmetry was measured for unresolvedd-ands-quarks, tagged by the detection of a high energy neutron or neutral kaon in the Hadron Calorimeter. The combinedd-ands-quark purity was 69% and their asymmetry was found to be 0.112±0.031 (stat.) ±0.054 (syst.).
dc.relation.ispartof	Zeitschrift für Physik C-Particles and Fields, 1995, vol. 67, num. 1, p. 1-13
dc.subject	Col·lisionadors d'hadrons
dc.subject	Partícules (Física nuclear)
dc.title	First measurement of the strange quark asymmetry at the z(0) peak
dc.type	journal article	es_ES
dc.date.updated	2014-05-12T11:55:14Z
dc.identifier.doi	10.1007/BF01564817
dc.identifier.idgrec	006570
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1007/BF01564817