Observation of a vector charmoniumlike state in e + e − → D + s D s 1 ( 2536 ) − + c . c .
| dc.contributor.author | Patra, S. | |
| dc.date.accessioned | 2020-11-17T08:41:02Z | |
| dc.date.available | 2020-11-17T08:41:02Z | |
| dc.date.issued | 2019 | |
| dc.description | Only IISERM authors are available in the record. | |
| dc.description.abstract | Using a data sample of 921.9 fb − 1 collected with the Belle detector, we study the process of e + e − → D + s D s 1 ( 2536 ) − + c . c . via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to D + s D s 1 ( 2536 ) − + c . c . with a significance of 5.9 σ , including systematic uncertainties. The measured mass and width are ( 4625.9 + 6.2 − 6.0 ( stat ) ± 0.4 ( syst ) ) MeV / c 2 and ( 49.8 + 13.9 − 11.5 ( stat ) ± 4.0 ( syst ) ) MeV , respectively. The product of the e + e − → D + s D s 1 ( 2536 ) − + c . c . cross section and the branching fraction of D s 1 ( 2536 ) − → ¯ D * 0 K − is measured from the D s ¯ D s 1 ( 2536 ) threshold to 5.59 GeV. | en_US |
| dc.identifier.citation | Physical Review D, 100(11). | en_US |
| dc.identifier.uri | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.111103 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/1676 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.subject | Hybrid mesons | en_US |
| dc.subject | Quarkonia | en_US |
| dc.subject | Lepton colliders | en_US |
| dc.title | Observation of a vector charmoniumlike state in e + e − → D + s D s 1 ( 2536 ) − + c . c . | en_US |
| dc.type | Article | en_US |