Evidence for a vector charmoniumlike state in e + e − → D + s D ∗ s 2 ( 2573 ) − + c . c .
| dc.contributor.author | Bhardwaj, V. | |
| dc.date.accessioned | 2020-12-22T07:07:03Z | |
| dc.date.available | 2020-12-22T07:07:03Z | |
| dc.date.issued | 2020 | |
| dc.description | Only IISERM authors are available in the record. | |
| dc.description.abstract | We report the measurement of e + e − → D + s D ∗ s 2 ( 2573 ) − + c . c . via initial-state radiation using a data sample of an integrated luminosity of 921.9 fb − 1 collected with the Belle detector at the Υ ( 4 S ) and nearby. We find evidence for an enhancement with a 3.4 σ significance in the invariant mass of D + s D ∗ s 2 ( 2573 ) − + c . c . The measured mass and width are ( 4619.8 + 8.9 − 8.0 ( stat . ) ± 2.3 ( syst . ) ) MeV / c 2 and ( 47.0 + 31.3 − 14.8 ( stat . ) ± 4.6 ( syst . ) ) MeV , respectively. The mass, width, and quantum numbers of this enhancement are consistent with the charmoniumlike state at 4626 MeV / c 2 recently reported by Belle in e + e − → D + s D s 1 ( 2536 ) − + c . c . The product of the e + e − → D + s D ∗ s 2 ( 2573 ) − + c . c . cross section and the branching fraction of D ∗ s 2 ( 2573 ) − → ¯ D 0 K − is measured from D + s D ∗ s 2 ( 2573 ) − threshold to 5.6 GeV. | en_US |
| dc.identifier.citation | Physical Review D, 101(9). | en_US |
| dc.identifier.other | https://doi.org/10.1103/PhysRevD.101.091101 | |
| dc.identifier.uri | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.101.091101 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/3299 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.subject | Measurement | en_US |
| dc.subject | Luminosity | en_US |
| dc.subject | Respectively | en_US |
| dc.title | Evidence for a vector charmoniumlike state in e + e − → D + s D ∗ s 2 ( 2573 ) − + c . c . | en_US |
| dc.type | Article | en_US |