About: Measurement of exclusive Upsilon(1S) and Upsilon(2S) decays into vector-pseudoscalar final states     Goto   Sponge   NotDistinct   Permalink

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Description
  • Using samples of 102 million Upsilon(1S) and 158 million Upsilon(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to (KSK+)-K-0 pi(-) and charge-conjugate (c.c.) states, pi(+) pi(-) pi(0) pi(0), and pi(+) pi(-) pi(0), and to the two-body Vector-Pseudoscalar (K*(892)0 (K) over bar (0) + c.c., K*(892)K--(+) + c.c., omega pi(0), and rho pi) final states. For the first time, signals are observed in the modes Upsilon(1S) -> K-S(0) K+ pi(-) + c.c., pi(+) pi(-) pi(0) pi(0), and Upsilon(2S) -> pi(+) pi(-) pi(0) pi(0), and evidence is found for the modes Upsilon(1S) -> pi(+) pi(-) pi(0), K-*(892)(0)(K) over bar (0) + c.c., and Upsilon(2S) -> K-S(0) K+ pi(-) + c.c. Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than 3 sigma. The ratios of the branching fractions of Upsilon(2S) and Upsilon(1S) decays into the same final state are used to test a perturbative QCD prediction for Okubo-Zweig-Iizuka- suppressed bottomonium decays.
  • Using samples of 102 million Upsilon(1S) and 158 million Upsilon(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to (KSK+)-K-0 pi(-) and charge-conjugate (c.c.) states, pi(+) pi(-) pi(0) pi(0), and pi(+) pi(-) pi(0), and to the two-body Vector-Pseudoscalar (K*(892)0 (K) over bar (0) + c.c., K*(892)K--(+) + c.c., omega pi(0), and rho pi) final states. For the first time, signals are observed in the modes Upsilon(1S) -> K-S(0) K+ pi(-) + c.c., pi(+) pi(-) pi(0) pi(0), and Upsilon(2S) -> pi(+) pi(-) pi(0) pi(0), and evidence is found for the modes Upsilon(1S) -> pi(+) pi(-) pi(0), K-*(892)(0)(K) over bar (0) + c.c., and Upsilon(2S) -> K-S(0) K+ pi(-) + c.c. Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than 3 sigma. The ratios of the branching fractions of Upsilon(2S) and Upsilon(1S) decays into the same final state are used to test a perturbative QCD prediction for Okubo-Zweig-Iizuka- suppressed bottomonium decays. (en)
Title
  • Measurement of exclusive Upsilon(1S) and Upsilon(2S) decays into vector-pseudoscalar final states
  • Measurement of exclusive Upsilon(1S) and Upsilon(2S) decays into vector-pseudoscalar final states (en)
skos:prefLabel
  • Measurement of exclusive Upsilon(1S) and Upsilon(2S) decays into vector-pseudoscalar final states
  • Measurement of exclusive Upsilon(1S) and Upsilon(2S) decays into vector-pseudoscalar final states (en)
skos:notation
  • RIV/00216208:11320/13:10193195!RIV14-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 86708
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/13:10193195
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • kekb; meson; identification; belle (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [B4C1A189767D]
http://linked.open...i/riv/nazevZdroje
  • Physical Review D - Particles, Fields, Gravitation and Cosmology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 88
http://linked.open...iv/tvurceVysledku
  • Cho, K.
  • Drásal, Zbyněk
  • Doležal, Zdeněk
  • Kodyš, Peter
  • Adachi, I.
  • Aihara, H.
  • Chen, P.
  • Leitner, Rupert
  • Bischofberger, M.
  • Yuan, C. Z.
  • Asner, D. M.
  • Aulchenko, V.
  • Bakich, A. M.
  • Bhuyan, B.
  • Boček, A.
  • Bracko, M.
  • Browder, T. E.
  • Chekelian, V.
  • Chen, A.
  • Cheon, B. G.
  • Chilikin, K.
  • Cho, I. -S.
  • Choi, Y.
  • Danilov, M.
  • Drutskoy, A.
  • Dalseno, J.
  • Shen, C. P.
  • Dingfelder, J.
  • Bala, A.
  • Chobanova, V.
  • Cinabro, D.
  • Dutta, D.
http://linked.open...ain/vavai/riv/wos
  • 000322145600001
http://linked.open...n/vavai/riv/zamer
issn
  • 1550-7998
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevD.88.011102
http://localhost/t...ganizacniJednotka
  • 11320
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