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dc.date.accessioned 2019-11-08T14:16:07Z
dc.date.available 2019-11-08T14:16:07Z
dc.date.issued 2014-05-27
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/85215
dc.description.abstract A measurement of the parity-violating decay asymmetry parameter, αb, and the helicity amplitudes for the decay Λ0b→J/ψ(μ+μ-)Λ0(pπ-) is reported. The analysis is based on 1400 Λ0b and Λ0¯b baryons selected in 4.6 fb-1 of proton-proton collision data with a center-of-mass energy of 7 TeV recorded by the ATLAS experiment at the LHC. By combining the Λb0 and Λ0¯b samples under the assumption of CP conservation, the value of αb is measured to be 0.30±0.16(stat)±0.06(syst). This measurement provides a test of theoretical models based on perturbative QCD or heavy-quark effective theory. en
dc.language en es
dc.subject Parity-violating asymmetry es
dc.subject ATLAS detector es
dc.subject Quantum chromodynamics es
dc.title Measurement of the parity-violating asymmetry parameter αb and the helicity amplitudes for the decay Λ0b →j /ψ Λ0 with the ATLAS detector en
dc.type Articulo es
sedici.identifier.other doi:10.1103/PhysRevD.89.092009 es
sedici.identifier.other eid:2-s2.0-84902007565 es
sedici.identifier.issn 1550-7998 es
sedici.creator.person Alconada Verzini, María Josefina es
sedici.creator.person Alonso, Francisco es
sedici.creator.person Anduaga, Xabier Sebastián es
sedici.creator.person Dova, María Teresa es
sedici.creator.person Monticelli, Fernando Gabriel es
sedici.creator.person Tripiana, Martín Fernando es
sedici.creator.corporate The ATLAS Collaboration es
sedici.description.note La lista completa de autores que integran el documento puede consultarse en el archivo. es
sedici.subject.materias Física es
sedici.subject.materias Ciencias Exactas es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Física La Plata es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 3.0 Unported (CC BY 3.0)
sedici.rights.uri http://creativecommons.org/licenses/by/3.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Physical Review D es
sedici.relation.journalVolumeAndIssue vol. 89, no. 9 es
sedici.rights.sherpa * Color: green * Pre-print del autor: si * Post-print del autor: si * Versión de editor/PDF:si * Condiciones: >>On author's personal website, employer's website or institutional repository >>Institutional repository must not be shared with other institutions >>Publisher's version/PDF may be used >>Link to publisher version required >>Publisher copyright and source must be acknowledged with citation * Link a Sherpa: http://sherpa.ac.uk/romeo/issn/1550-7998/es/


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Creative Commons Attribution 3.0 Unported (CC BY 3.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution 3.0 Unported (CC BY 3.0)