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Observation of the Hadronic transitions chi(b1,2)(2P)-->omegaUpsilon(1S) |
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| Authors: | Cronin-Hennessy D Park C S Park W Thayer J B Thorndike E H Coan T E Gao Y S Liu F Stroynowski R Artuso M Boulahouache C Blusk S Dambasuren E Dorjkhaidav O Mountain R Muramatsu H Nandakumar R Skwarnicki T Stone S Wang J C Mahmood A H Csorna S E Bonvicini G Cinabro D Dubrovin M Bornheim A Lipeles E Pappas S P Shapiro A Sun W M Weinstein A J Briere R A Chen G P Ferguson T Tatishvili G Vogel H Watkins M E Adam N E Alexander J P Berkelman K Boisvert V Cassel D G Duboscq J E Ecklund K M Ehrlich R Galik R S Gibbons L Gittelman B Gray S W Hartill D L Heltsley B K Hsu L Jones C D Kandaswamy J |
| Affiliation: | University of Rochester, Rochester, New York 14627, USA. |
| Abstract: | The CLEO Collaboration has made the first observations of hadronic transitions among bottomonium (bbmacr;) states other than the dipion transitions among Upsilon(nS) states. In our study of Upsilon(3S) decays, we find a significant signal for Upsilon(3S)-->gammaomegaUpsilon(1S) that is consistent with radiative decays Upsilon(3S)-->gammachi(b1,2)(2P), followed by chi(b1,2)(2P)-->omegaUpsilon(1S). The branching ratios we obtain are B[chi(b1)(2P)-->omegaUpsilon(1S)]=(1.63(+0.35+0.16)(-0.31-0.15))% and B[chi(b2)(2P)-->omegaUpsilon(1S)]=(1.10(+0.32+0.11)(-0.28-0.10))%, in which the first error is statistical and the second is systematic. |
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