QCD Sum Rules for ρ ω φ Meson-Nucleon Scattering Lengths and the Mass Shifts in Nuclear Medium : Nuclear Physics

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概要

• 論文の詳細を見る

• A new QCD sum rule analysis on the spin-isospin averaged ρ, ω and φ meson-nucleon scattering lengths is presented. By introducing the constraint relation on the low energy limit of the vector-current nucleon forward scattering amplitude (low energy theorem), we obtain a_ρ = -0.47 ± 0.05 fm, a_ω = -0.41 ± 0.05 fm and a_φ = -0.15 ± 0.02 fm, which suggests that these V-N interactions are attractive. It is also proved that previous studies on the mass shift of these vector mesons in the nuclear medium are essentially those obtained from these scattering lengths in the linear density approximation.

• 理論物理学刊行会の論文
• 1997-09-25

著者

• Koike Yuji

  Graduate School Of Science And Technology Niigata University

• Koike Y

  Niigata Univ. Niigata Jpn

• Hayashigaki A

  Kyoto Univ. Kyoto Jpn

• HAYASHIGAKI Arata

  Graduate School of Science and Technology,Niiqata University

• KOIKE Yuji

  Department of Physics, Niigata University

• KOIKE Yuji

  Graduate School of Science and Technology,Niiqata University

関連論文

• Quark Cluster Model and Confinement
• Q^2-Evolution of Nucleon's Chiral-Odd Twist-3 Spin-Structure Function : h_L(x,Q^2)
• QCD Sum Rules for ρ ω φ Meson-Nucleon Scattering Lengths and the Mass Shifts in Nuclear Medium : Nuclear Physics
• Q^2 evolution of chiral-odd twist-3 distributions h_L(x,Q^2) and e(x,Q^2) in large N_C-QCD(Recent Developments in QCD and Hadron Physics)

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