Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 천병구 | - |
dc.date.accessioned | 2017-05-22T05:06:11Z | - |
dc.date.available | 2017-05-22T05:06:11Z | - |
dc.date.issued | 2015-09 | - |
dc.identifier.citation | PHYSICAL REVIEW LETTERS, v. 115, NO 14, Page. 142001-142001 | en_US |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.issn | 1079-7114 | - |
dc.identifier.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.142001 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/27376 | - |
dc.description.abstract | Using a sample of 771.6 x 10(6) Upsilon Upsilon(4S) decays collected by the Belle experiment at the KEKB e(+)e(-) collider, we observe, for the first time, the transition Upsilon(4S) -˃ eta h(b)(1P) with the branching fraction B[Upsilon(4S) -˃ eta h(b)(1P)] = (2.18 +/- 0.11 +/- 0.18) x 10(-3) and we measure the h(b)(1P) mass M-hb(1P) = (9899.3 +/- 0.4 +/- 1.0) MeV/c(2), corresponding to the hyperfine (HF) splitting Delta M-HF(1P) = (0.6 +/- 0.4 +/- 1.0) MeV/c(2). Using the transition h(b)(1P) -˃ gamma eta(b)(1S), we measure the eta(b)(1S) mass M-eta b(1S) = (9400.7 +/- 1.7 +/- 1.6) MeV/c(2), corresponding to Delta M-HF(1S) = (59.6 +/- 1.7 +/- 1.6) MeV/c(2), the eta(b)(1S) width Gamma(eta b)(1S) = (8(-5)(+6)+/- 5) MeV/c(2) and the branching fraction B[h(b)(1P) -˃ gamma eta(b)(1S)] = (56 +/- 8 +/- 4)%. | en_US |
dc.description.sponsorship | We 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 and DIISR (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 (particularly under Contract No. 14.A12.31.0006), RFAAE and RFBR under Grant No. 14-02-01220 (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER PHYSICAL SOC | en_US |
dc.subject | SHORT-DISTANCE ANALYSIS | en_US |
dc.subject | HEAVY-QUARK SYSTEMS | en_US |
dc.subject | SPECTROSCOPY | en_US |
dc.subject | CHARMONIUM | en_US |
dc.subject | STATES | en_US |
dc.subject | QCD | en_US |
dc.title | First Observation of the Hadronic Transition Upsilon(4S) -˃ eta h(b)(1P) and New Measurement of the h(b)(1P) and eta(b)(1S) Parameters | en_US |
dc.type | Article | en_US |
dc.relation.no | 14 | - |
dc.relation.volume | 115 | - |
dc.identifier.doi | 10.1103/PhysRevLett.115.142001 | - |
dc.relation.page | 142001-142001 | - |
dc.relation.journal | PHYSICAL REVIEW LETTERS | - |
dc.contributor.googleauthor | Tamponi, U. | - |
dc.contributor.googleauthor | Mussa, R. | - |
dc.contributor.googleauthor | Abdesselam, A. | - |
dc.contributor.googleauthor | Aihara, H. | - |
dc.contributor.googleauthor | Arinstein, K. | - |
dc.contributor.googleauthor | Asner, D.M. | - |
dc.contributor.googleauthor | Atmacan, H. | - |
dc.contributor.googleauthor | Aushev, T. | - |
dc.contributor.googleauthor | Ayad, R. | - |
dc.contributor.googleauthor | Cheon, B.G. | - |
dc.relation.code | 2015001420 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | bgcheon | - |
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