Partial-Wave Analysis of the ηπ + π − System Produced in the Reaction π − p → ηπ + π − n at 18 GeV/c
نویسندگان
چکیده
A partial-wave analysis of 9082 ηππn events produced in the reaction πp → ηππn at 18.3 GeV/c has been carried out using data from experiment 852 at Brookhaven National Laboratory. The data are dominated by J = 0 partial waves consistent with observation of the η(1295) and the η(1440). The mass and width of the η(1295) were determined to be 1282± 5 MeV and 66± 13 MeV respectively while the η(1440) was observed with a mass of 1404 ± 6 MeV and a width of 80 ± 21 MeV. Other partial waves of importance include the 1 and the 1 waves. Results of the partial wave analysis are combined with results of other experiments to estimate f1(1285) branching fractions. These values are considerably different from Present address: Department of Physics, University of Maryland, College Park, MD 20742, USA current values determined without the aid of amplitude analyses. Typeset using REVTEX
منابع مشابه
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