Measurement of the K-{pi}+ S-wave System in D+ {yields} K-{pi}+{pi}+ Decays from Fermilab E791
- University of Cincinnati, Cincinnati, OH, 45221 (United States)
A new approach to the analysis of three body decays is presented. Measurements of the S-wave K{pi} amplitude are made in independent ranges of invariant mass from threshold up to the upper kinematic limit in D+ {yields} K-{pi}+{pi}+ decays. These are compared with results obtained from a fit where the S-wave is assumed to have {kappa} and K{sub 0}*(1430) resonances. Results are also compared with measurements of K-{pi}+ elastic scattering. Contributions from I = (1/2) and I = (3/2) are not resolved in this study. If I = (1/2) dominates, however, the Watson theorem prediction, that the phase behaviour below K{eta}' threshold should match that in elastic scattering, is not well supported by these data. Production of K-{pi}+ from these D decays is also studied.
- OSTI ID:
- 20798155
- Journal Information:
- AIP Conference Proceedings, Vol. 814, Issue 1; Conference: 11. international conference on hadron spectroscopy, Rio de Janeiro (Brazil), 21-26 Aug 2005; Other Information: DOI: 10.1063/1.2176563; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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