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dc.date.accessioned 2019-07-12T18:05:25Z
dc.date.available 2019-07-12T18:05:25Z
dc.date.issued 1999-04-29
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/78058
dc.description.abstract We report measurements of the inclusive production of heavy quarkonium states in Z decays based on the analysis of 3.6 million hadronic events collected by the L3 detector at LEP. The measurement of inclusive J production and an improved 95% confidence level upper limit on Υ production are presented. In addition, two independent measurements of the ratio, fp , of prompt J mesons to those from B decay are made using two different isolation cuts to separate prompt J mesons from J mesons produced in the decays of b hadrons. The results are: Br(Z→J+X)=(3.21±0.21(stat.)+0.19−0.28(sys.))×10−3, Br(Z→ϒ(1S)+X)<4.4×10−5, fp=(7.1±2.1(stat.)±1.2(sys.)+1.5−0.8(theo.))×10−2. en
dc.format.extent 94-106 es
dc.language en es
dc.subject Física es
dc.subject quarkonium production en
dc.subject Z decays en
dc.subject L3 detector en
dc.title Heavy quarkonium production in Z decays en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1016/S0370-2693(99)00280-4
sedici.identifier.issn 0370-2693 es
sedici.creator.person Dova, María Teresa es
sedici.creator.person Lacentre, Pablo E. es
sedici.creator.person L3 Collaboration es
sedici.subject.materias Ciencias Exactas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Physics Letters B es
sedici.relation.journalVolumeAndIssue vol. 453, no. 1–2 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)