Quark-Model Baryon-Baryon Interaction Applied to Neutron-Deuteron Scattering. II : Polarization Observables of the Elastic Scattering(Nuclear Physics)
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概要
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The neutron-deuteron (nd) scattering is solved in the Faddeev formalism, employing the energy-independent version of the quark-model baryon-baryon interaction fss2. The differential cross sections and the spin polarization of the elastic scattering up to the neutron incident energy E_n=65MeV are well reproduced without reinforcing fss2 with the three-body force. The vector analyzing power of the neutron, A_y (θ), in the energy region E_n≤25MeV is largely improved in comparison with the predictions based on the meson-exchange potentials, thus yielding a partial solution of the long-standing A_y puzzle owing to the nonlocality of the short-range repulsion produced by the quark-model baryon-baryon interaction. The large Coulomb effect in the vector and tensor analyzing powers in E_n≤10MeV is also analyzed by the Vincent and Phatak method and on the basis of recent detailed studies by other authors.
- 2011-04-25
著者
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Fukukawa Kenji
Department Of Physics Kyoto University
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Fujiwara Yoshikazu
Department Of Clinical Gene Therapy Osaka University Graduate School Of Medicine
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