Evidence of $κ$ particle in $J/ψ\to \bar{K}^*(892)^0 K^+ π^-$
| dc.creator | Bai, J. Z. | |
| dc.creator | Zheng, H. Q. | |
| dc.creator | Ruan, T. N. | |
| dc.date | 2003-04-01 | |
| dc.date | 2003-04-07 | |
| dc.date.accessioned | 2026-07-07T03:35:43Z | |
| dc.date.available | 2026-07-07T03:35:43Z | |
| dc.description | Based on a $J/ψ$ data sample of $7.8 \times 10^6$ events at BESI, the decay of $ J/ψ\to \bar{K}^*(892)^0 K^+ π^-$ is studied and a low mass enhancement, which is believed not coming from the phase space effect or background, is visible in the $K^+ π^-$ invariant mass spectrum recoiling against $\bar{K}^*(892)^0$. Partial wave analysis of this channel favors this low mass enhancement being a broad $0^{+}$ resonance with the mass and width of $771^{+164}_{-221}\pm 55$ MeV/c$^2$ and $220^{+225}_{-169} \pm 97$ MeV/c$^2$, respectively. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0304001 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0304001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/37462 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Evidence of $κ$ particle in $J/ψ\to \bar{K}^*(892)^0 K^+ π^-$ | |
| dc.type | text |