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Spin and parity analysis of KK-bar. pi. system in the D and E/iota regions

Journal Article · · Phys. Rev. Lett.; (United States)
We have performed a high-statistics experiment on the reaction ..pi../sup -/p..-->..K/sup +/K/sup 0/..pi../sup -/n at 8.0 GeV/c. A Dalitz-plot analysis of the K/sup +/K/sup 0/..pi../sup -/ system finds that the D(1285) is a J/sup P/G = 1/sup + +/ state coupling predominantly to a delta..pi.. decay channel, while the E(1420) peak consists mostly of a J/sup P/G = 0/sup - +/ wave with a substantial delta..pi.. decay mode. There is little evidence of a 1/sup + +/ resonance at the E mass.
Research Organization:
Brookhaven National Laboratory, Upton, New York 11973
DOE Contract Number:
AS05-76ER03509; AC02-84ER40125
OSTI ID:
5372266
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 55:8; ISSN PRLTA
Country of Publication:
United States
Language:
English