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An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction
The results of a search for a possible evidence of a pi /sup +/ pi /sup +/ resonant state in the np to pi /sup +/ pi /sup +/ pi /sup -/ annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of t...
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| Lenguaje: | eng |
| Publicado: |
2000
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0370-2693(00)01276-4 http://cds.cern.ch/record/504124 |
| _version_ | 1780897318338297856 |
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| author | Filippi, A Agnello, M Astrua, M Botta, E Bressani, Tullio Calvo, D Costa, S D'Isep, F Feliciello, A Iazzi, F Marcello, S Minetti, B Mirfakhraee, N Balestra, F Busso, L Denisov, O Yu Ferrero, L Garfagnini, R Grasso, A Maggiora, A Panzarasa, A Panzieri, D Tosello, F Bertin, A Bruschi, M Cannata, F Capponi, M De Castro, S Donà, R Galli, D Giacobbe, B Marconi, U Massa, I Piccinini, M Poli, M Cesari, N S Spighi, R Vagnoni, V M Vecchi, S Villa, M Vitale, A Zoccoli, A Bianconi, A Bonomi, G Bussa, M P Lodi-Rizzini, E Venturelli, L Zenoni, A Cicalò, C De Falco, A Masoni, A Puddu, G Serci, S Usai, G L Gorchakov, O E Prakhov, S N Rozhdestvensky, A M Tretyak, V I Gianotti, P Guaraldo, C Lanaro, A Lucherini, V Petrascu, C Filippini, V Fontana, A Montagna, P Rotondi, A Salvini, P Tessaro, S |
| author_facet | Filippi, A Agnello, M Astrua, M Botta, E Bressani, Tullio Calvo, D Costa, S D'Isep, F Feliciello, A Iazzi, F Marcello, S Minetti, B Mirfakhraee, N Balestra, F Busso, L Denisov, O Yu Ferrero, L Garfagnini, R Grasso, A Maggiora, A Panzarasa, A Panzieri, D Tosello, F Bertin, A Bruschi, M Cannata, F Capponi, M De Castro, S Donà, R Galli, D Giacobbe, B Marconi, U Massa, I Piccinini, M Poli, M Cesari, N S Spighi, R Vagnoni, V M Vecchi, S Villa, M Vitale, A Zoccoli, A Bianconi, A Bonomi, G Bussa, M P Lodi-Rizzini, E Venturelli, L Zenoni, A Cicalò, C De Falco, A Masoni, A Puddu, G Serci, S Usai, G L Gorchakov, O E Prakhov, S N Rozhdestvensky, A M Tretyak, V I Gianotti, P Guaraldo, C Lanaro, A Lucherini, V Petrascu, C Filippini, V Fontana, A Montagna, P Rotondi, A Salvini, P Tessaro, S |
| author_sort | Filippi, A |
| collection | CERN |
| description | The results of a search for a possible evidence of a pi /sup +/ pi /sup +/ resonant state in the np to pi /sup +/ pi /sup +/ pi /sup -/ annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of the isobar model. Production fractions for a possible pi /sup +/ pi /sup +/ resonance have been evaluated. The observed effects at the pi /sup +/ pi /sup +/ threshold may be described reasonably well by the contributions of f/sub 2/(1270), f /sub 0/(1500), f/sub 2/(1565) and rho (1450) states and their interferences, but a meaningful statistical indication for a pi /sup +/ pi /sup +/ scalar state at about 1400 MeV emerges from the analysis. (14 refs). |
| id | cern-504124 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2000 |
| record_format | invenio |
| spelling | cern-5041242019-09-30T06:29:59Zdoi:10.1016/S0370-2693(00)01276-4http://cds.cern.ch/record/504124engFilippi, AAgnello, MAstrua, MBotta, EBressani, TullioCalvo, DCosta, SD'Isep, FFeliciello, AIazzi, FMarcello, SMinetti, BMirfakhraee, NBalestra, FBusso, LDenisov, O YuFerrero, LGarfagnini, RGrasso, AMaggiora, APanzarasa, APanzieri, DTosello, FBertin, ABruschi, MCannata, FCapponi, MDe Castro, SDonà, RGalli, DGiacobbe, BMarconi, UMassa, IPiccinini, MPoli, MCesari, N SSpighi, RVagnoni, V MVecchi, SVilla, MVitale, AZoccoli, ABianconi, ABonomi, GBussa, M PLodi-Rizzini, EVenturelli, LZenoni, ACicalò, CDe Falco, AMasoni, APuddu, GSerci, SUsai, G LGorchakov, O EPrakhov, S NRozhdestvensky, A MTretyak, V IGianotti, PGuaraldo, CLanaro, ALucherini, VPetrascu, CFilippini, VFontana, AMontagna, PRotondi, ASalvini, PTessaro, SAn analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reactionParticle Physics - ExperimentThe results of a search for a possible evidence of a pi /sup +/ pi /sup +/ resonant state in the np to pi /sup +/ pi /sup +/ pi /sup -/ annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of the isobar model. Production fractions for a possible pi /sup +/ pi /sup +/ resonance have been evaluated. The observed effects at the pi /sup +/ pi /sup +/ threshold may be described reasonably well by the contributions of f/sub 2/(1270), f /sub 0/(1500), f/sub 2/(1565) and rho (1450) states and their interferences, but a meaningful statistical indication for a pi /sup +/ pi /sup +/ scalar state at about 1400 MeV emerges from the analysis. (14 refs).oai:cds.cern.ch:5041242000 |
| spellingShingle | Particle Physics - Experiment Filippi, A Agnello, M Astrua, M Botta, E Bressani, Tullio Calvo, D Costa, S D'Isep, F Feliciello, A Iazzi, F Marcello, S Minetti, B Mirfakhraee, N Balestra, F Busso, L Denisov, O Yu Ferrero, L Garfagnini, R Grasso, A Maggiora, A Panzarasa, A Panzieri, D Tosello, F Bertin, A Bruschi, M Cannata, F Capponi, M De Castro, S Donà, R Galli, D Giacobbe, B Marconi, U Massa, I Piccinini, M Poli, M Cesari, N S Spighi, R Vagnoni, V M Vecchi, S Villa, M Vitale, A Zoccoli, A Bianconi, A Bonomi, G Bussa, M P Lodi-Rizzini, E Venturelli, L Zenoni, A Cicalò, C De Falco, A Masoni, A Puddu, G Serci, S Usai, G L Gorchakov, O E Prakhov, S N Rozhdestvensky, A M Tretyak, V I Gianotti, P Guaraldo, C Lanaro, A Lucherini, V Petrascu, C Filippini, V Fontana, A Montagna, P Rotondi, A Salvini, P Tessaro, S An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| title | An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| title_full | An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| title_fullStr | An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| title_full_unstemmed | An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| title_short | An analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| title_sort | analysis of the contribution of isospin two $\pi \pi$ resonant states in the n.bar.p to $\pi^{+}\pi^{+}\pi^{-}$ annihilation reaction |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0370-2693(00)01276-4 http://cds.cern.ch/record/504124 |
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