| 主页 > Search for narrow p states in the reaction pi /sup -/p to p pi /sup - /pp at 16 GeV/c |
| Article | |
| Title | Search for narrow p states in the reaction pi /sup -/p to p pi /sup - /pp at 16 GeV/c |
| Author(s) | Chung, S U ; Bar-Yam, Z ; Bensinger, J ; Button-Shafer, J ; Dhar, S ; Dowd, J ; Etkin, A ; Fernow, R ; Foley, K ; Goldman, J H ; Kern, W ; Kirk, H ; Kopp, J ; Kramer, M A ; Lesnik, A ; Lichti, R ; Lindenbaum, S J ; Love, W ; Mallik, U ; Morris, T ; Morris, W ; Ozaki, S ; Platner, E ; Protopopescu, S D ; Saulys, A ; Weygand, D P ; Wheeler, C D ; Willen, E ; Winik, M |
| Affiliation | (Brookhaven Nat Lab, Upton, NY, USA) |
| Publication | 1981 |
| In: | AIP Conf. Proc. 67 (1981) 170-85 |
| In: | 6th International Conference on Experimental Meson Spectroscopy, Upton, NY, USA, 25 - 26 Apr 1980, pp.170-85 |
| DOI | 10.1063/1.32370 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | The authors have carried out a sensitive (>or approximately=5 events /nb) search for narrow pp states at the BNL Multiparticle Spectrometer. They found no evidence of narrow pp states at 2020 and 2200 MeV in the reaction pi /sup -/p to p pi /sup -/pp at 16 GeV/c. The authors quote 2 sigma upper limits of <or approximately=3 nb for these states in their data. Based on the cross sections of the CERN Omega experiment at 12 GeV/c and assuming baryon-exchange processes for the production, they should have seen >or approximately=5 sigma signals at 2020 and 2200 MeV. (5 refs). |