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S-wave K- pi+ system in D+ ---> K- pi+ pi+ decays from Fermilab E791

Conference ·
OSTI ID:15020191
A new approach to the analysis of three body decays is presented. Model-independent results are obtained for the S-wave K{pi} amplitude as a function of K{pi} invariant mass. These are compared with results from K{sup -}{pi}{sup +} elastic scattering, and the prediction of the Watson theorem, that the phase behavior be the same below K{eta}' threshold, is tested. Contributions from I = 1/2 and I = 3/2 are not resolved in this study. If I = 1/2 dominates, however, the Watson theorem does not describe these data well.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76CH03000
OSTI ID:
15020191
Report Number(s):
FERMILAB-CONF-05-240-E; arXiv eprint number hep-ex/0506040
Country of Publication:
United States
Language:
English

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