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    高師機構典藏 NKNUIR > 理學院 > 物理學系 > 期刊論文 >  Item 987654321/10644
    Please use this identifier to cite or link to this item: http://ir.nknu.edu.tw/ir/handle/987654321/10644

    題名: Measurements of the D(SJ) Resonance Properties
    Authors: 郭榮升
    K. Abe;Rurng-Sheng Kuo
    貢獻者: 物理系
    Date: 2004-01-06
    Issue Date: 2010-11-11 09:06:33 (UTC+8)
    Abstract: We report measurements of the properties of the D+sJ(2317) and D+sJ(2457) resonances produced in continuum e+e− annihilation near s√=10.6  GeV. The analysis is based on an 86.9  fb−1 data sample collected with the Belle detector at KEKB. We determine the masses to be M(D+sJ(2317))=2317.2±0.5(stat)±0.9(syst)  MeV/c2 and M(D+sJ(2457))=2456.5±1.3(stat)±1.3(syst)  MeV/c2. We observe the radiative decay mode D+sJ(2457)→D+sγ and the dipion decay mode D+sJ(2457)→D+sπ+π− and determine their branching fractions. No corresponding decays are observed for the DsJ(2317) state. These results are consistent with the spin-parity assignments of 0+ for the DsJ(2317) and 1+ for the DsJ(2457).
    關聯: Phys. Rev. Lett. / Vol. 92, Iss. 1 , 012002
    Appears in Collections:[物理學系] 期刊論文
    [物理系] 郭榮升

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