Mass Splitting and Production of $Σ_c^0$ and $Σ_c^{++}$ Measured in $500 {GeV}$ $π^- -$N Interactions
| dc.creator | Aitala, E. M. | |
| dc.date | 1996-04-24 | |
| dc.date.accessioned | 2026-07-07T11:46:43Z | |
| dc.date.available | 2026-07-07T11:46:43Z | |
| dc.description | From a sample of $2722 \pm 78$ $Λ_c^+$ decaying to the $pK^-π^+$ final state, we have observed, in the hadroproduction experiment E791 at Fermilab, $143 \pm 20$ $Σ_c^0$ and $122 \pm 18$ $Σ_c^{++}$ through their decays to $Λ_c^+ π^{\pm}$. The mass difference $M(Σ_c^0) - M(Λ_c^+$) is measured to be $(167.38\pm 0.29\pm 0.15) {MeV}$; for $M(Σ_c^{++}) - M(Λ_c^+)$, we find $(167.76\pm 0.29\pm0.15) {MeV}$. The rate of $Λ_c^+$ production from decays of the $Σ_c$ triplet is $(22\pm 2\pm 3) {%}$ of the total $Λ_c^+$ production assuming equal rate of production from all three, as measured for $Σ_c^0$ and $Σ_c^{++}$. We do not observe a statistically significant $Σ_c$ baryon-antibaryon production asymmetry. The $x_F$ and $p_t^2$ spectra of $Λ_c^+$ from $Σ_c$ decays are observed to be similar to those for all $Λ_c^+$'s produced. | |
| dc.description | 15 pages, uuencoded postscript 3 figures uuencoded, tar-compressed file | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9604007 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9604007 | |
| dc.identifier | Phys.Lett.B379:292-298,1996 | |
| dc.identifier | doi:10.1016/0370-2693(96)00471-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202322 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Mass Splitting and Production of $Σ_c^0$ and $Σ_c^{++}$ Measured in $500 {GeV}$ $π^- -$N Interactions | |
| dc.type | text |