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High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson
A sample of 318000 events of the reaction pi /sup -/p to pi /sup -/ pi /sup +/n at 17.2 GeV/c with 94000 events in the mass interval of the rho meson (0.71<M( pi /sup +/ pi /sup -/)<0.83 GeV/c/sup 2/) has been measured in a spark-chamber experiment. For these latter events the pi /sup +/ pi /s...
| Autores principales: | , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1972
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/880015 |
| _version_ | 1780908102545047552 |
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| author | Grayer, G Blum, W Dietl, H Hyams, Bernard David Jones, C Koch, W Lorenz, E Lütjens, G Männer, W Meissburger, J Ochs, W Schlein, P E Stierlin, U Weilhammer, P |
| author_facet | Grayer, G Blum, W Dietl, H Hyams, Bernard David Jones, C Koch, W Lorenz, E Lütjens, G Männer, W Meissburger, J Ochs, W Schlein, P E Stierlin, U Weilhammer, P |
| author_sort | Grayer, G |
| collection | CERN |
| description | A sample of 318000 events of the reaction pi /sup -/p to pi /sup -/ pi /sup +/n at 17.2 GeV/c with 94000 events in the mass interval of the rho meson (0.71<M( pi /sup +/ pi /sup -/)<0.83 GeV/c/sup 2/) has been measured in a spark-chamber experiment. For these latter events the pi /sup +/ pi /sup -/ decay angular distribution parametrized in spherical harmonic moments has been studied as a function of t, the four-momentum transfer squared between p and n. At high mod t mod the rho is produced in an almost pure t-channel helicity one state with around 80% natural parity exchange. A comparison of the data with the absolute predictions of the simple absorption model parametrization of Williams shows good agreement, but only in the range -t<0.06 (GeV)/sup 2/. (7 refs). |
| id | cern-880015 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1972 |
| record_format | invenio |
| spelling | cern-8800152019-09-30T06:29:59Zhttp://cds.cern.ch/record/880015engGrayer, GBlum, WDietl, HHyams, Bernard DavidJones, CKoch, WLorenz, ELütjens, GMänner, WMeissburger, JOchs, WSchlein, P EStierlin, UWeilhammer, PHigh statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ mesonParticle Physics - PhenomenologyA sample of 318000 events of the reaction pi /sup -/p to pi /sup -/ pi /sup +/n at 17.2 GeV/c with 94000 events in the mass interval of the rho meson (0.71<M( pi /sup +/ pi /sup -/)<0.83 GeV/c/sup 2/) has been measured in a spark-chamber experiment. For these latter events the pi /sup +/ pi /sup -/ decay angular distribution parametrized in spherical harmonic moments has been studied as a function of t, the four-momentum transfer squared between p and n. At high mod t mod the rho is produced in an almost pure t-channel helicity one state with around 80% natural parity exchange. A comparison of the data with the absolute predictions of the simple absorption model parametrization of Williams shows good agreement, but only in the range -t<0.06 (GeV)/sup 2/. (7 refs).RHEL-72-001oai:cds.cern.ch:8800151972 |
| spellingShingle | Particle Physics - Phenomenology Grayer, G Blum, W Dietl, H Hyams, Bernard David Jones, C Koch, W Lorenz, E Lütjens, G Männer, W Meissburger, J Ochs, W Schlein, P E Stierlin, U Weilhammer, P High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| title | High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| title_full | High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| title_fullStr | High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| title_full_unstemmed | High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| title_short | High statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 GeV/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| title_sort | high statistics study of the reaction $\pi^{-}p \rightarrow \pi^{-} \pi^{+}n$ at 17 gev/c - the $(\pi^{+} \pi^{-})$ mass interval of the $\rho$ meson |
| topic | Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/880015 |
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