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Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c
In the pi /sup +/ pi /sup -/ pi /sup +or-/ systems of the reactions pp to KKm pi (m=4,5) two narrow peaks are observed at the positions of the delta and A/sub 1/ mesons. The measured masses and widths are: M= (956+or-7)MeV, Gamma =(46+or-22)MeV for the delta and M=(1076+or-5)Me V, Gamma =(36/sup +20...
| Autores principales: | , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1973
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(73)90281-5 http://cds.cern.ch/record/880789 |
| _version_ | 1780908194928787456 |
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| author | Atherton, Henry W Franek, B J French, Bernard R Ghidini, B Hilpert, H G Kinson, J B Mandelli, L Moebes, J P Myklebost, K Nellen, B Quercigh, Emanuele Simák, V |
| author_facet | Atherton, Henry W Franek, B J French, Bernard R Ghidini, B Hilpert, H G Kinson, J B Mandelli, L Moebes, J P Myklebost, K Nellen, B Quercigh, Emanuele Simák, V |
| author_sort | Atherton, Henry W |
| collection | CERN |
| description | In the pi /sup +/ pi /sup -/ pi /sup +or-/ systems of the reactions pp to KKm pi (m=4,5) two narrow peaks are observed at the positions of the delta and A/sub 1/ mesons. The measured masses and widths are: M= (956+or-7)MeV, Gamma =(46+or-22)MeV for the delta and M=(1076+or-5)Me V, Gamma =(36/sup +20//sub -15/)MeV, for the A/sub 1/. Their decay modes and spin-parities are shown to be mainly 3 pi , J/sup P/=0/sup - / and rho pi , J/sup P/=1/sup +/(D-wave) respectively. (8 refs). |
| id | cern-880789 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1973 |
| record_format | invenio |
| spelling | cern-8807892019-09-30T06:29:59Zdoi:10.1016/0370-2693(73)90281-5http://cds.cern.ch/record/880789engAtherton, Henry WFranek, B JFrench, Bernard RGhidini, BHilpert, H GKinson, J BMandelli, LMoebes, J PMyklebost, KNellen, BQuercigh, EmanueleSimák, VObservation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/cParticle Physics - PhenomenologyIn the pi /sup +/ pi /sup -/ pi /sup +or-/ systems of the reactions pp to KKm pi (m=4,5) two narrow peaks are observed at the positions of the delta and A/sub 1/ mesons. The measured masses and widths are: M= (956+or-7)MeV, Gamma =(46+or-22)MeV for the delta and M=(1076+or-5)Me V, Gamma =(36/sup +20//sub -15/)MeV, for the A/sub 1/. Their decay modes and spin-parities are shown to be mainly 3 pi , J/sup P/=0/sup - / and rho pi , J/sup P/=1/sup +/(D-wave) respectively. (8 refs).oai:cds.cern.ch:8807891973 |
| spellingShingle | Particle Physics - Phenomenology Atherton, Henry W Franek, B J French, Bernard R Ghidini, B Hilpert, H G Kinson, J B Mandelli, L Moebes, J P Myklebost, K Nellen, B Quercigh, Emanuele Simák, V Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c |
| title | Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c |
| title_full | Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c |
| title_fullStr | Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c |
| title_full_unstemmed | Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c |
| title_short | Observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and A$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 GeV/c |
| title_sort | observation of narrow (3$\pi$)$\pm$ peaks in the $\delta$ and a$\_{1}$ regions in $\overline{p}p$ annihilations at 5.7 gev/c |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1016/0370-2693(73)90281-5 http://cds.cern.ch/record/880789 |
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