Observation of a Narrow Meson Decaying to Ds pi0 gamma at a Mass of 2.458 GeV/c^2
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2003-10-24 | |
| dc.date | 2004-01-19 | |
| dc.date.accessioned | 2026-07-07T12:02:07Z | |
| dc.date.available | 2026-07-07T12:02:07Z | |
| dc.description | A narrow state, which we label DsJ(2458)+, with mass 2458.0 +/- 1.0(stat.) +/- 1.0(syst.) MeV/c^2, is observed in the inclusive Ds+ pi0 γ$ mass distribution in 91 fb-1 of e^+e^- annihilation data recorded by the BABAR detector at the PEP-II asymmetric-energy e^+e^- storage ring. The observed width is consistent with the experimental resolution. The data favor decay through Ds*(2112)+ pi0 rather than through DsJ*(2317)+ gamma. An analysis of Ds+ pi0 data accounting for the influence of the DsJ(2458)+ produces a DsJ*(2317)+ mass of 2317.3 +/- 0.4(stat.) +/- 0.8(syst.) MeV/c^2. | |
| dc.description | 7 pages, 3 postscript figures, submitted to PRD-Rapid Communications | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0310050 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0310050 | |
| dc.identifier | Phys.Rev.D69:031101,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.69.031101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207328 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Observation of a Narrow Meson Decaying to Ds pi0 gamma at a Mass of 2.458 GeV/c^2 | |
| dc.type | text |