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Hyperon atom : Σ atom , Ξ, analysis of atomic data

Hyperon Atom and Y-N Interaction. Hyperon atom : Σ atom , Ξ, analysis of atomic data Level width : Determination of the coupling constants Σatom : Ξatom :

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Hyperon atom : Σ atom , Ξ, analysis of atomic data

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  1. Hyperon Atom and Y-N Interaction • Hyperon atom : Σ atom , Ξ, analysis of atomic data Level width : Determination of the coupling constants Σatom : Ξatom : Level Shift : Determination of the optical potential depth ストレンジネスとエキゾティクス・理論の課題 2007/3/1--3 三重・鳥羽　　　　　　 Akihiro Haga RCNP and Yataro Horikawa J.U.

  2. Hyperon 原子

  3. 強い相互作用による Level shifts と level widths 　　　　　　　　　　　　　　　　　　の微細構造に対する影響 Anomalous moment

  4. R. J. Powers et al., Phys. Rev .C 47, 1263(1993)

  5. Energies of the 10l to 9k transitions in Pb and W R.J. Powers et al. Phys. Rev. C47, 1263 (1993)

  6. Nuclear size effect Vacuum polarization of e--e+ field 　⇒　Solve the Dirac equation with the Coulomb field. Nuclear polarization Self-energy effect (Bethe log. + Anomalous moment) Vacuum polarization of μ--μ+ field Relativistic recoil effect Electron screening effect Experience in muonic atom

  7. 核分極補正 ダイアグラム 最低次の核分極補正 ＝ゲージ不変 真空偏極と結合した核分極補正ダイアグラム（単独でゲージ不変）

  8. Hydrogenlike atom 　　ー QEDの高精度検証 ー Theoretical value :

  9. Pure Coulomb energy of circular orbits (MeV)

  10. Hyperon atom and Relativistic EFT

  11. Spectra of Σ- Pb atom Binding energy (MeV) Quantum number κ of angular momentum Parameter set NLSH + Mares

  12. NLSH TM1 Binding due to the strong interaction becomes weak RHAT

  13. J. Mares and B. K. Jennings, Phys. Rev. C49, 2472 (1994) using NLSH for nucleon sector

  14. Transition energy of 10l to 9k in 208Pb; 505.321(48) keV One can reproduce this data by adjusting a parameter of σ-Σ coupling constant. Aｌmost same ratio ! Level shifts of 10l and 9k in 208Pb ; less than 1keV !!  repulsive unbound potential

  15. Potential necessary to reproduce energy shifts

  16. width の計算

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