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| The experimental study of pp eta dynamics with WASA-at-COSY |
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| Content: |
In order to investigate the interaction of eta-meson with the nucleons, its production near the kinematical threshold has been studied in proton-proton collisions with the WASA detector at COSY storage ring in Juelich, Germany. The data have been taken at beam energy of 1400 MeV (corresponding to an excess energy Q = 56 MeV). The eta-meson was detected via 3pi0 decay in the almost 4pi central calorimeter while the two final-state protons were measured in forward direction. The determination of four vectors of both protons and the eta-meson in the final state allowed to derive complete kinematical information of the pp eta-system.The proton-proton elastic scattering was used to determine the luminosity for the experiment. This luminosity is than used to normalize the data. The analysis resulted in 97k eta->3pi0 events. The angular distribution of the eta-meson in the center of mass frame is anisotropic and the squared invariant mass distributions for proton-proton and proton-eta show deviations from phase space. |
| Id: |
50 |
| Place: |
Room: Main Auditorium |
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| Duration: |
00' |
| Primary Authors: |
Ms. SHAH, Neha (IIT Bombay) |
| Presenters: |
Ms. SHAH, Neha |
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Last modified: 21 April 2011 05:02