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Krupa, D.; Meshcheryakov, V.A.; Surovtsev, Yu. S.
Joint Inst. for Nuclear Research, Dubna (USSR). Lab. of Theoretical Physics1986
Joint Inst. for Nuclear Research, Dubna (USSR). Lab. of Theoretical Physics1986
AbstractAbstract
[en] In a two-channel unitarity approximation the use of analytic properties of s- wave ππ and KK-bar scattering amplitudes and certain assumptions on the KK-bar-scattering background allow one to describe the s- wave of the ππ → KK-bar process on the basis of ππ scattering data analysis. A 4-sheet structure of the Riemann surface of the considered amplitudes is taken into account by means of a proper model of this surface uniformizing these amplitudes. The coupling constants of S*(980)-meson with ππ and KK-bar system are evaluated: gππS*/gKK-barS* ∼ 0.5
Original Title
ππ- i KK-bar-rasseyanie i skalyarnye mezony
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Source
1986; 12 p; 20 refs.; 4 fifs.
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Report
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AMPLITUDES, ANTIMATTER, ANTIMESONS, ANTIPARTICLES, BOSONS, ELEMENTARY PARTICLES, HADRON-HADRON INTERACTIONS, HADRONS, INTERACTIONS, KAONS, MATRICES, MATTER, MESON RESONANCES, MESON-MESON INTERACTIONS, MESONS, PARTIAL WAVES, PARTICLE INTERACTIONS, POSTULATED PARTICLES, PSEUDOSCALAR ANTIMESONS, PSEUDOSCALAR MESONS, RESONANCE PARTICLES, STRANGE PARTICLES
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