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dc.contributor.author천병구-
dc.date.accessioned2018-03-25T05:55:12Z-
dc.date.available2018-03-25T05:55:12Z-
dc.date.issued2013-01-
dc.identifier.citationPhysical Review D, 2013, 87(D), 011104en_US
dc.identifier.issn1550-7998-
dc.identifier.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.011104-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/51939-
dc.description.abstractWe study the rare hadronic transitions Y(2S) -> Y(1S)eta and Y(2S) -> Y(1S)pi(0) using a sample of 158 x 10(6)Y(2S) decays collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the ratios of branching fractions (B) B(Y(2S)-> Y(1S)eta)/B(Y(2S)-> Y(1S)pi(+)pi(-)) = (1.99 +/- 0.14(stat) +/- 0.11(syst) x 10(-3) and B(Y(2S)-> Y(1S)pi(0))/B(Y(2S)-> Y(1S)pi(+)pi(-)) < 2.3 x 10(-4) at the 90% confidence level (CL). Assuming the value B(Y(2S)-> Y(1S)pi(-)pi(+)) = (17.92 +/- 0.26)%, we obtain B(Y(2S)-> Y(1S)eta) = (3.57 +/- 0.25(stat) +/- 0.21(syst)) x 10(-4) and Y(2S) -> Y(1S)pi(0) < 4.1 x 10(-5)(90%CL). DOI: 10.1103/PhysRevD.87.011104en_US
dc.description.sponsorshipWe thank the KEKB group for excellent operation of the accelerator, the KEK cryogenics group for efficient solenoid operations, and the KEK computer group and the NII for valuable computing and SINET4 network support. We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC and DIISR (Australia); NSFC (China); MSMT (Czechia); DST (India); INFN (Italy); MEST, NRF, NSDC of KISTI, and WCU (Korea); MNiSW (Poland); MES and RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA).en_US
dc.language.isoenen_US
dc.publisherAmer Physical SOCen_US
dc.subjectMONTE-CARLOen_US
dc.subjectSTATESen_US
dc.subjectCHARMONIUMen_US
dc.titleStudy of the hadronic transitions Y(2S) -˃ (eta, pi(0))Y(1S) at Belleen_US
dc.typeArticleen_US
dc.relation.no1-
dc.relation.volume87-
dc.identifier.doi10.1103/PhysRevD.87.011104-
dc.relation.page11104-11104-
dc.relation.journalPHYSICAL REVIEW D-
dc.contributor.googleauthorTamponi, U-
dc.contributor.googleauthorMussa, R-
dc.contributor.googleauthorAdachi, I-
dc.contributor.googleauthorAihara, H-
dc.contributor.googleauthorAsner, D. M-
dc.contributor.googleauthorAulchenko, V-
dc.contributor.googleauthorAushev, T-
dc.contributor.googleauthorBakich, A. M-
dc.contributor.googleauthorBarrett, M-
dc.contributor.googleauthorCheon, BG-
dc.relation.code2013011682-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF NATURAL SCIENCES[S]-
dc.sector.departmentDEPARTMENT OF PHYSICS-
dc.identifier.pidbgcheon-


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