Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 천병구 | - |
dc.date.accessioned | 2021-05-13T05:35:25Z | - |
dc.date.available | 2021-05-13T05:35:25Z | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | PHYSICAL REVIEW LETTERS, v. 124, no. 12, article no. 122001 | en_US |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.issn | 1079-7114 | - |
dc.identifier.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.122001 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/162028 | - |
dc.description.abstract | We report the first observation of the radiative decay of the Upsilon(1S) into a charmonium state. The significance of the observed signal of Upsilon(1S) -˃ gamma chi(c1) is 6.3 standard deviations including systematics. The branching fraction is calculated to be B[Upsilon(1S) -˃ gamma chi(c1)] = [4.7(-1.8)(+2.4) (stat)(-0.5)(+0.4) (sys) x 10(-5)]. We also searched for Upsilon(1S) radiative decays into chi(c0.2) and eta(c)(1S, 2S), and set upper limits on their branching fractions. These results are obtained from a 24.9 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider at a center-of-mass energy equal to the Upsilon(2S) mass using Upsilon(1S) tagging by the Upsilon(2S) -˃ Upsilon(1S)pi(+)pi(-) transitions. | 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 SINET5 network support. We acknowledge support from MEXT, JSPS and Nagoya’s TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, RSRI, FLRFAS project, GSDC of KISTI and KREONET/GLORIAD (Korea); MNiSW and NCN (Poland); RSF, Grant No. 18-12-00226 (Russia); ARRS (Slovenia); IKERBASQUE (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (USA). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER PHYSICAL SOC | en_US |
dc.title | Observation of the Radiative Decays of Upsilon(1S) to chi(c1) | en_US |
dc.type | Article | en_US |
dc.relation.no | 12 | - |
dc.relation.volume | 124 | - |
dc.identifier.doi | 10.1103/PhysRevLett.124.122001 | - |
dc.relation.page | 122001-122001 | - |
dc.relation.journal | PHYSICAL REVIEW LETTERS | - |
dc.contributor.googleauthor | Katrenko, P. | - |
dc.contributor.googleauthor | Adachi, I. | - |
dc.contributor.googleauthor | Aihara, H. | - |
dc.contributor.googleauthor | Al Said, S. | - |
dc.contributor.googleauthor | Asner, D. M. | - |
dc.contributor.googleauthor | Aushev, T. | - |
dc.contributor.googleauthor | Badhrees, I. | - |
dc.contributor.googleauthor | Bahinipati, S. | - |
dc.contributor.googleauthor | Behera, P. | - |
dc.contributor.googleauthor | Cheon, B. G. | - |
dc.relation.code | 2020048853 | - |
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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