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A partial wave analysis of the (Kππ) system in the reaction π? p→(K +π?π0)Λ at 3.95 GeV/c |
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| Authors: | C Fernandez M Aguilar-Benitez M Cerrada J A Garzón J A Rubio José Salicio R Armenteros C Dionisi Ph Gavillet P F Loverre M Mazzucato L Dobrzynski D Pennino I Sjögren S Rodebäck S O Holmgren |
| Institution: | 1. Junta de Energia Nuclear, Madrid, Spain 2. CERN, European Organization for Nuclear Research, CH-1211, Geneva, Switzerland 5. Collège de France, F-75231, Paris, France 6. Department of Physics, University of Stockholm, S-11346, Stockholm, Sweden |
| Abstract: | Results from a partial wave analysis of theKππ system produced in the hypercharge exchange reaction π? p→(K +π?π0)Λ at 3.95 GeV/c are presented. SignificantQ 1 production is observed but no evidence is found forQ 2 production thus confirming the results obtained in a previous decay Dalitz plot analysis of the same reaction. The relative phase behaviour of the 1+(K?) partial waves obtained with the present analysis provides additional confirmation of the resonance interpretation of theQ 1 enhancement. Information is also obtained about its production properties and the role played by the Λ polarization in the hypercharge exchange reaction. This is compared with the results obtained in the reactionK ? p→(π+π?π0)Λ at 4 GeV/c. |
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