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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F12%3A10127391%21RIV13-MSM-11320___
rdf:type
skos:Concept n7:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1103/PhysRevD.86.031102
dcterms:description
Using samples of 102 x 10(6) Gamma(1S) and 158 x 10(6) Gamma(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states phi K+K-, omega pi(+)pi(-) and K*(0)(892)K-pi(+), and to the two-body Vector-Tensor states (phi f'(2)(1525), omega f(2)(1270), rho a(2)(1320) and K*(0)(892)(K) over bar*(0)(2)(1430)) and Axial-vector-Pseudoscalar (K-1(1270)K-+(-), K-1(1400)K-+(-) and b(1)(1235)(+)pi(-)) states. Signals are observed for the first time in the Y(1S) -> phi K+K-, omega pi(+)pi(-), K*K-0(-)pi(+), K*K-0*(0)(2) Gamma(2S) -> phi K+K-, K*K-0(-)pi(+) decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3 sigma. The ratios of the branching fractions of Gamma(2S) and Gamma(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays. Using samples of 102 x 10(6) Gamma(1S) and 158 x 10(6) Gamma(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states phi K+K-, omega pi(+)pi(-) and K*(0)(892)K-pi(+), and to the two-body Vector-Tensor states (phi f'(2)(1525), omega f(2)(1270), rho a(2)(1320) and K*(0)(892)(K) over bar*(0)(2)(1430)) and Axial-vector-Pseudoscalar (K-1(1270)K-+(-), K-1(1400)K-+(-) and b(1)(1235)(+)pi(-)) states. Signals are observed for the first time in the Y(1S) -> phi K+K-, omega pi(+)pi(-), K*K-0(-)pi(+), K*K-0*(0)(2) Gamma(2S) -> phi K+K-, K*K-0(-)pi(+) decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3 sigma. The ratios of the branching fractions of Gamma(2S) and Gamma(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.
dcterms:title
Observation of exclusive Y(1S) and Y(2S) decays into light hadrons Observation of exclusive Y(1S) and Y(2S) decays into light hadrons
skos:prefLabel
Observation of exclusive Y(1S) and Y(2S) decays into light hadrons Observation of exclusive Y(1S) and Y(2S) decays into light hadrons
skos:notation
RIV/00216208:11320/12:10127391!RIV13-MSM-11320___
n7:predkladatel
n8:orjk%3A11320
n3:aktivita
n13:P n13:Z
n3:aktivity
P(LA10033), Z(MSM0021620859)
n3:cisloPeriodika
3
n3:dodaniDat
n16:2013
n3:domaciTvurceVysledku
n12:8616094 n12:1772597 n12:8404666
n3:druhVysledku
n18:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
155530
n3:idVysledku
RIV/00216208:11320/12:10127391
n3:jazykVysledku
n4:eng
n3:klicovaSlova
hadrons; light; into; decays; Y2S; Y1S; exclusive; Observation
n3:klicoveSlovo
n9:hadrons n9:decays n9:Y1S n9:Y2S n9:light n9:Observation n9:exclusive n9:into
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[67C0EA678304]
n3:nazevZdroje
Physical Review D - Particles, Fields, Gravitation and Cosmology
n3:obor
n21:BF
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
155
n3:projekt
n10:LA10033
n3:rokUplatneniVysledku
n16:2012
n3:svazekPeriodika
86
n3:tvurceVysledku
Asner, D. M. Bracko, M. Chang, P. Dalseno, J. Browder, T. E. Bakich, A. M. Bonvicini, G. Bischofberger, M. Yuan, C. Z. Chen, P. Belous, K. Cheon, B. G. Choi, S. -K. Cho, K. Iijima, T. Drásal, Zbyněk Cho, I. -S. Chistov, R. Boček, A. Aushev, T. Chang, M. -C. Chen, A. Aihara, H. Shen, C. P. Doležal, Zdeněk Choi, Y. Kodyš, Peter Chilikin, K. Bhuyan, B. Bay, A. Adachi, I.
n3:wos
000307506200001
n3:zamer
n6:MSM0021620859
s:issn
1550-7998
s:numberOfPages
7
n15:doi
10.1103/PhysRevD.86.031102
n22:organizacniJednotka
11320