Inclusive π0 and η production in the all neutral mode from 100 GeV/cπ−p collisions |
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Authors: | AV Barnes GC Fox RG Kennett RL Walker OI Dahl RW Kenney A Ogawa M Pripstein |
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Institution: | 1. California Institute of Technology, Pasadena, California 91125, USA;2. Lawrence Berkeley Laboratory, Berkeley, California 94720, USA |
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Abstract: | Results are givenfor π0 and η production in 100 GeV/cπ?p collisions, summed over all final states with no charged particles present (the all neutral final states). The data are fitted for x?0.6 to a modification of triple Regge theory suggested by the multiperipheral model. We find good agreement between the values of the ? and A2 trajectories determined in the all neutral process, the full inclusive mode, π?p → (π0, η)X, and the exclusive reactions, π?p → (π0, η)n. The ? exchange residue function shows evidence for a dip at t ≈ ?0.5 (GeV/c)2 (the ? wrong signature nonsense zero), whereas the η data are quite smooth in this region. These successful predictions for both the trajectory and residue function are striking evidence for the validity of triple Regge theory. |
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