About: Evidence of ϒ(1S) -> J/ψ + χc1 and search for double-charmonium production in ϒ(1S) and ϒ(2S) decays

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About: Evidence of ϒ(1S) -> J/ψ + χc1 and search for double-charmonium production in ϒ(1S) and ϒ(2S) decays Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1103/PhysRevD.90.112008
Description	Using data samples of 102 x 106 ϒð1SÞ and 158 x 106 ϒð2SÞ events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays ϒð1S; 2SÞ RIGHTWARDS ARROW J=ψðψ0Þ þ X, where X 1/4 ηc, χcJðJ 1/4 0; 1; 2Þ, ηcð2SÞ, Xð3940Þ, and Xð4160Þ. No significant signal is observed in the spectra of the mass recoiling against the reconstructed J=ψ or ψ0 except for the evidence of χc1 production with a significance of 4.6σ for ϒð1SÞ RIGHTWARDS ARROW J=ψ þ χc1. The measured branching fraction Bðϒð1SÞ RIGHTWARDS ARROW J=ψ þ χc1 Þ is 1/23.90 1.21ðstatÞ 0.23ðsystÞ x 10MINUS SIGN 6. The 90% C.L. upper limits on the branching fractions of the other modes having a significance of less than 3σ are determined. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach. Using data samples of 102 x 106 ϒð1SÞ and 158 x 106 ϒð2SÞ events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays ϒð1S; 2SÞ RIGHTWARDS ARROW J=ψðψ0Þ þ X, where X 1/4 ηc, χcJðJ 1/4 0; 1; 2Þ, ηcð2SÞ, Xð3940Þ, and Xð4160Þ. No significant signal is observed in the spectra of the mass recoiling against the reconstructed J=ψ or ψ0 except for the evidence of χc1 production with a significance of 4.6σ for ϒð1SÞ RIGHTWARDS ARROW J=ψ þ χc1. The measured branching fraction Bðϒð1SÞ RIGHTWARDS ARROW J=ψ þ χc1 Þ is 1/23.90 1.21ðstatÞ 0.23ðsystÞ x 10MINUS SIGN 6. The 90% C.L. upper limits on the branching fractions of the other modes having a significance of less than 3σ are determined. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach. (en)
Title	Evidence of ϒ(1S) -> J/ψ + χc1 and search for double-charmonium production in ϒ(1S) and ϒ(2S) decays Evidence of ϒ(1S) -> J/ψ + χc1 and search for double-charmonium production in ϒ(1S) and ϒ(2S) decays (en)
skos:prefLabel	Evidence of ϒ(1S) -> J/ψ + χc1 and search for double-charmonium production in ϒ(1S) and ϒ(2S) decays Evidence of ϒ(1S) -> J/ψ + χc1 and search for double-charmonium production in ϒ(1S) and ϒ(2S) decays (en)
skos:notation	RIV/00216208:11320/14:10289737!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LG14034)
http://linked.open...iv/cisloPeriodika	11
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Doležal, Zdeněk Kodyš, Peter Drásal, Zbyněk Červenkov, Daniel
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	15552
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10289737
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	decays; K-S0pi+pi-; D-0; using; violation; indirect; for; search; mixing; bar0; D-0-D; Measurement (en)
http://linked.open.../riv/klicoveSlovo	using for mixing Measurement search violation D-0 decays D-0-D K-S0pi+pi- bar0 indirect
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[6230E36FFB39]
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	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	185 (xsd:int)
http://linked.open...vavai/riv/projekt	Studium fyziky za standardním modelem v rozpadech mezonů B v mezinárodním experimentu Belle II
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	89
http://linked.open...iv/tvurceVysledku	Drásal, Zbyněk Doležal, Zdeněk Kodyš, Peter Ban, Y. Shen, C. P. Červenkov, Daniel Yang, S. D.
issn	1550-7998
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevD.90.112008
http://localhost/t...ganizacniJednotka	11320

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