Study ofπ−πscattering amplitudes in the reactionπ+p→Δ++π0π0at 8.0 GeV

delta../sup + +/..pi../sup 0/..pi../sup 0/ using the Argonne National Laboratory 1.5-m streamer chamber combined with a lead-glass hodoscope is described. The data were analyzed in terms of ..pi../sup +/..pi../sup -/..--> pi../sup 0/..pi../sup 0/ scattering, and the details of the extrapolation to the pole are discussed. An energy-independent amplitude analysis from threshold to 2.3 GeV is presented. In this analysis the f/sup 0/(1270), the h/sup 0/(2040), and a J/sup P/ = 2/sup +/ state at 1.8 GeV with a width of 0.280 GeV are observed. The amplitude ambiguity arising from analyses of ..pi../sup +/..pi../sup -/..--> pi../sup +/..pi../sup -/ data in the 1.6-GeV region is resolved. An energy-dependent phase-shift analysis from 1.0 to 1.5 GeV is presented. -->
ISSN: 0556-2821
DOI: 10.1103/physrevd.28.1586
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=doi_________::ac37b454272ecd22dc086896ce224182
https://doi.org/10.1103/physrevd.28.1586
Rights: CLOSED
Přírůstkové číslo: edsair.doi...........ac37b454272ecd22dc086896ce224182
Autor: N. M. Cason, W. D. Shephard, J. M. Bishop, P.E. Cannata, A.E. Baumbaugh, Loretta J. Dauwe, J. M. Watson, N. N. Biswas, V. P. Kenney, Randy Ruchti
Rok vydání: 1983
Předmět:
Zdroj: Physical Review D. 28:1586-1600
ISSN: 0556-2821
DOI: 10.1103/physrevd.28.1586
Popis: An experiment studying the reaction ..pi../sup +/p..--> delta../sup + +/..pi../sup 0/..pi../sup 0/ using the Argonne National Laboratory 1.5-m streamer chamber combined with a lead-glass hodoscope is described. The data were analyzed in terms of ..pi../sup +/..pi../sup -/..--> pi../sup 0/..pi../sup 0/ scattering, and the details of the extrapolation to the pole are discussed. An energy-independent amplitude analysis from threshold to 2.3 GeV is presented. In this analysis the f/sup 0/(1270), the h/sup 0/(2040), and a J/sup P/ = 2/sup +/ state at 1.8 GeV with a width of 0.280 GeV are observed. The amplitude ambiguity arising from analyses of ..pi../sup +/..pi../sup -/..--> pi../sup +/..pi../sup -/ data in the 1.6-GeV region is resolved. An energy-dependent phase-shift analysis from 1.0 to 1.5 GeV is presented.
Databáze: OpenAIRE
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