E-meson in the reaction pp → π+π−π+π−η
✍ Scribed by Jun-Suhk Suh
- Book ID
- 108441951
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 231 KB
- Volume
- 675
- Category
- Article
- ISSN
- 0375-9474
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Preliminary results are reported on the production of rpl~r-and wrpr-in the reaction 7r-p --+ p~r+Tr-~r-~r°y at 18 GeV/c where both ~r ° and t/ decay to 27. The data were obtained using the MultiParticle Spectrometer at Brookhaven National Laboratory. In the yy~r-channel, a strong a0(980) signal dec
Data on pp → ηπ + π -π + π -at rest show two resonant processes: (a) f 0 (1370)η, f 0 (1370) → σ σ and ρρ, (b) η( 1440)σ , η(1440) → ηπ + π -. The branching ratio BR[f 0 (1370) → ρρ]/ BR[f 0 (1370) → σ σ ] = 0.98 ± 0.25 in the mass range available here. Using data on pp → ηπ 0 π 0 , the ratio Γ 4π /