About: Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda

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About: Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector Goto Sponge Distinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A measurement of the parity-violating decay asymmetry parameter, alpha_b, and the helicity amplitudes for the decay Lambda_b->J/psi(mu mu)+Lambda(p pi) is reported. The analysis is based on 1400 Lambda_b and anti-Lambda_b baryons selected in 4.6/fb 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 Lambda_b and anti-Lambda_b samples under the assumption of CP conservation, the value of alpha_b 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. A measurement of the parity-violating decay asymmetry parameter, alpha_b, and the helicity amplitudes for the decay Lambda_b->J/psi(mu mu)+Lambda(p pi) is reported. The analysis is based on 1400 Lambda_b and anti-Lambda_b baryons selected in 4.6/fb 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 Lambda_b and anti-Lambda_b samples under the assumption of CP conservation, the value of alpha_b 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)
Title	Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector (en)
skos:prefLabel	Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector (en)
skos:notation	RIV/68378271:_____/14:00432871!RIV15-AV0-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LG13009)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Böhm, Jan Havránek, Miroslav Hejbal, Jiří Kůs, Vlastimil Šícho, Petr Kupčo, Alexander Vrba, Václav Lokajíček, Miloš Mikeštíková, Marcela Myška, Miroslav Staroba, Pavel Kepka, Oldřich Marčišovský, Michal Taševský, Marek Němeček, Stanislav Chudoba, Jiří Svatoš, Michal Jakoubek, Tomáš Lysák, Roman
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	27896
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/14:00432871
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	J/psi(3100); leptonic decay; ATLAS; CERN LHC Coll; Heavy Quark Effective Theory; Lambda/b0; hadronic decay (en)
http://linked.open.../riv/klicoveSlovo	J/psi(3100) ATLAS leptonic decay hadronic decay CERN LHC Coll Lambda/b0 Heavy Quark Effective Theory
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[F616810A87BC]
http://linked.open...i/riv/nazevZdroje	Physical Review D: Particles, Fields, Gravitation and Cosmology
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	19 (xsd:int)
http://linked.open...cetTvurcuVysledku	2897 (xsd:int)
http://linked.open...vavai/riv/projekt	International experiment ATLAS-CERN
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	89
http://linked.open...iv/tvurceVysledku	Abbott, B. Aad, G. Böhm, Jan Chudoba, Jiří Kepka, Oldřich Kupčo, Alexander Kůs, Vlastimil Lokajíček, Miloš Marčišovský, Michal Mikeštíková, Marcela Myška, Miroslav Němeček, Stanislav Staroba, Pavel Taševský, Marek Vrba, Václav Šícho, Petr Havránek, Miroslav Svatoš, Michal Abajyan, T. Jakoubek, Tomáš Lysák, Roman Hejbal, Jiří
http://linked.open...ain/vavai/riv/wos	000336651300001
issn	1550-7998
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevD.89.092009

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