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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10289737%21RIV15-MSM-11320___
rdf:type
skos:Concept n20:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1103/PhysRevD.90.112008
dcterms: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.
dcterms: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
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
skos:notation
RIV/00216208:11320/14:10289737!RIV15-MSM-11320___
n3:aktivita
n10:I n10:P
n3:aktivity
I, P(LG14034)
n3:cisloPeriodika
11
n3:dodaniDat
n9:2015
n3:domaciTvurceVysledku
n6:9049215 n6:1772597 n6:8616094 n6:8404666
n3:druhVysledku
n15:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
15552
n3:idVysledku
RIV/00216208:11320/14:10289737
n3:jazykVysledku
n16:eng
n3:klicovaSlova
decays; K-S0pi+pi-; D-0; using; violation; indirect; for; search; mixing; bar0; D-0-D; Measurement
n3:klicoveSlovo
n5:Measurement n5:violation n5:for n5:indirect n5:using n5:decays n5:D-0 n5:D-0-D n5:mixing n5:search n5:K-S0pi%2Bpi- n5:bar0
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[6230E36FFB39]
n3:nazevZdroje
Physical Review D - Particles, Fields, Gravitation and Cosmology
n3:obor
n13:BF
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
185
n3:projekt
n11:LG14034
n3:rokUplatneniVysledku
n9:2014
n3:svazekPeriodika
89
n3:tvurceVysledku
Doležal, Zdeněk Yang, S. D. Červenkov, Daniel Shen, C. P. Ban, Y. Drásal, Zbyněk Kodyš, Peter
s:issn
1550-7998
s:numberOfPages
9
n18:doi
10.1103/PhysRevD.90.112008
n14:organizacniJednotka
11320