skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of the K-{pi}+ S-wave System in D+ {yields} K-{pi}+{pi}+ Decays from Fermilab E791

Abstract

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.

Authors:
 [1]
  1. University of Cincinnati, Cincinnati, OH, 45221 (United States)
Publication Date:
OSTI Identifier:
20798155
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 814; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; D PLUS MESONS; ELASTIC SCATTERING; ETA PRIME-958 MESONS; FERMILAB; HADRONIC PARTICLE DECAY; K*-1410 MESONS; KAONS MINUS; PION-KAON INTERACTIONS; PION-PION INTERACTIONS; PIONS MINUS; PIONS PLUS; REST MASS; S WAVES; THREE-BODY PROBLEM

Citation Formats

Meadows, B. Measurement of the K-{pi}+ S-wave System in D+ {yields} K-{pi}+{pi}+ Decays from Fermilab E791. United States: N. p., 2006. Web. doi:10.1063/1.2176563.
Meadows, B. Measurement of the K-{pi}+ S-wave System in D+ {yields} K-{pi}+{pi}+ Decays from Fermilab E791. United States. doi:10.1063/1.2176563.
Meadows, B. Sat . "Measurement of the K-{pi}+ S-wave System in D+ {yields} K-{pi}+{pi}+ Decays from Fermilab E791". United States. doi:10.1063/1.2176563.
@article{osti_20798155,
title = {Measurement of the K-{pi}+ S-wave System in D+ {yields} K-{pi}+{pi}+ Decays from Fermilab E791},
author = {Meadows, B.},
abstractNote = {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.},
doi = {10.1063/1.2176563},
journal = {AIP Conference Proceedings},
number = 1,
volume = 814,
place = {United States},
year = {Sat Feb 11 00:00:00 EST 2006},
month = {Sat Feb 11 00:00:00 EST 2006}
}