Search for the Radiative Transitions ψ(3770)→γη_c and γη_c(2S)
| dc.contributor.author | Ablikim, M. | en_US |
| dc.contributor.author | Achasov, M. N. | en_US |
| dc.contributor.author | Ai, X. C. | en_US |
| dc.contributor.author | Albayrak, O. | en_US |
| dc.contributor.author | Albrecht, M. | en_US |
| dc.contributor.author | Ambrose, D. J. | en_US |
| dc.contributor.author | An, F. F. | en_US |
| dc.contributor.author | Lou, Xinchou | en_US |
| dc.contributor.utdAuthor | Lou, Xinchou | en_US |
| dc.date.accessioned | 2014-10-17T19:05:50Z | |
| dc.date.available | 2014-10-17T19:05:50Z | |
| dc.date.created | 2014-06-18 | en_US |
| dc.date.issued | 2014-06-18 | en_US |
| dc.description.abstract | By using a 2.92 fb⁻¹ data sample taken at √s=3.773 GeV with the BESIII detector operating at the BEPCII collider, we search for the radiative transitions ψ(3770) → γη_c and γη_c(2S) through the hadronic decays η_c(η_c(2S)) → K_s^0 K^± π^∓. No significant excess of signal events above background is observed. We set upper limits at a 90% confidence level for the product branching fractions to be ℬ(ψ(3770)→γη_c) × ℬ(η_c→K_s^0 K^± π^∓) < 1.6×10⁻⁵ and ℬ(ψ(3770)→γη_c(2S)) × ℬ(η_c(2S)→K_s^0 K^± π^∓) < 5.6×10⁻⁶. Combining our result with world-average values of ℬ(η_c(η_c(2S))→K_s^0 K^± π^∓), we find the branching fractions ℬ(ψ(3770)→γη_c) < 6.8×10⁻⁴ and ℬ(ψ(3770)→γη_c(2S)) < 2.0×10⁻³ at a 90% confidence level. | en_US |
| dc.description.sponsorship | "This work is supported in part by the Ministry of Science and Technology of China under Contract No. 2009CB825200; Joint Funds of the National Natural Science Foundation of China under Contracts No. 11079008, No. 11179007, No. 11179014, No. 11179020, and No. U1332201; National Natural Science Foundation of China (NSFC) under Contracts No. 10625524, No. 10821063, No. 10825524, No. 10835001, No. 10935007, No. 11125525, and No. 11235011; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS under Contracts No. KJCX2-YW-N29 and No. KJCX2-YW-N45; 100 Talents Program of CAS; German Research Foundation DFG under Contract No. Collaborative Research Center CRC-1044; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; U.S. Department of Energy under Contracts No. DE-FG02-04ER41291, No. DE-FG02-05ER41374, No. DE-FG02-94ER40823, and No. DESC0010118; U.S. National Science Foundation; University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0." | en_US |
| dc.identifier.bibliographicCitation | Ablikim, M., M. N. Achasov, X. C. Ai, O. Albayrak, et al. 2014. "Search for the radiative transitions ψ(3770)→γη_c and γη_c(2S)." Physical Review D 89(11), doi:10.1103/PhysRevD.89.112005 | en_US |
| dc.identifier.issn | 1550-7998 | en_US |
| dc.identifier.issue | 11 | en_US |
| dc.identifier.startpage | 112005 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10735.1/4125 | |
| dc.identifier.volume | 89 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Amer Physical Soc | en_US |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevD.89.112005 | |
| dc.rights | ©2014 American Physical Society | en_US |
| dc.source | Physical Review D | |
| dc.subject | Branching fractions (Nuclear physics) | en_US |
| dc.subject | Hadrons--Decay | en_US |
| dc.subject | Photons | en_US |
| dc.subject | Radiative transitions | en_US |
| dc.title | Search for the Radiative Transitions ψ(3770)→γη_c and γη_c(2S) | en_US |
| dc.type | Text | en_US |
| dc.type.genre | Article | en_US |