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dc.contributor.author천병구-
dc.date.accessioned2016-10-18T00:54:58Z-
dc.date.available2016-10-18T00:54:58Z-
dc.date.issued2015-04-
dc.identifier.citationPHYSICAL REVIEW LETTERS, v. 114, NO 15, Page. 151601-151602en_US
dc.identifier.issn0031-9007-
dc.identifier.issn1079-7114-
dc.identifier.urihttp://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.151601-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/23859-
dc.description.abstractWe report the measurement of the direct CP asymmetry in the radiative (B) over bar -˃ Xs+d gamma decay using a data sample of (772 +/- 11) x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The CP asymmetry is measured as a function of the photon energy threshold. For E-gamma* ˃= 2.1 GeV, where E-gamma* is the photon energy in the center-of-mass frame, we obtain A(CP) ((B) over bar -˃ Xs+d gamma) = (2.2 +/- 3.9 +/- 0.9)%, consistent with the standard model prediction.en_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, the NII, and PNNL/EMSL for valuable computing and SINET4 network support. We acknowledge support from MEXT, JSPS, and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC (China); MSMT (Czechia); CZF, DFG, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, GSDC of KISTI, and BK21Plus (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA).en_US
dc.language.isoenen_US
dc.publisherAMER PHYSICAL SOCen_US
dc.titleMeasurement of the Direct CP Asymmetry in over-bar & RARR; gamma; Decays with a Lepton Tagen_US
dc.typeArticleen_US
dc.relation.no15-
dc.relation.volume114-
dc.identifier.doi10.1103/PhysRevLett.114.151601-
dc.relation.page151601-151602-
dc.relation.journalPHYSICAL REVIEW LETTERS-
dc.contributor.googleauthorPesantez, L.-
dc.contributor.googleauthorUrquijo, P.-
dc.contributor.googleauthorDingfelder, J.-
dc.contributor.googleauthorAbdesselam, A.-
dc.contributor.googleauthorAdachi, I.-
dc.contributor.googleauthorAdamczyk, K.-
dc.contributor.googleauthorAihara, H.-
dc.contributor.googleauthorAl Said, S.-
dc.contributor.googleauthorArinstein, K.-
dc.contributor.googleauthorCheon, B. G.-
dc.relation.code2015001420-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF NATURAL SCIENCES[S]-
dc.sector.departmentDEPARTMENT OF PHYSICS-
dc.identifier.pidbgcheon-


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