Study of the P-wave charmonium state χ_{cJ} in ψ(2S) decays
| dc.creator | Bai, J. Z. | |
| dc.date | 1998-07-01 | |
| dc.date | 1998-10-26 | |
| dc.date.accessioned | 2026-07-07T10:32:19Z | |
| dc.date.available | 2026-07-07T10:32:19Z | |
| dc.description | The processes $ψ(2S)\to γπ^+ π^-$, $γK^+ K^-$ and $γp \bar{p}$ have been studied using a sample of $3.7 \times 10^6$ produced $ψ(2S)$ decays. We determine the total width of the $χ_{c0}$ to be $Γ^{tot}_{χ_{c0}} = 14.3\pm 2.0\pm 3.0$ MeV. We present the first measurement of the branching fraction $B(χ_{c0} \to p \bar{p}) = (16.3 \pm 4.4 \pm 5.4)\times 10^{-5}$, where the first error is statistical and the second one systematic. Branching fractions of $χ_{c0,2} \to π^+ π^-$ and $K^+ K^-$ are also reported. | |
| dc.description | 10 pages, revtex, 3 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9807001 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9807001 | |
| dc.identifier | Phys.Rev.Lett.81:3091-3095,1998 | |
| dc.identifier | doi:10.1103/PhysRevLett.81.3091 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178713 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of the P-wave charmonium state χ_{cJ} in ψ(2S) decays | |
| dc.type | text |