A perturbative renormalization group approach to light-front Hamiltonian

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タイトル別名
  • perturbative renormalization group appr

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A perturbative renormalization group (RG) scheme for light-front Hamiltonian is formulated on the basis of the Bloch-Horowitz effective Hamiltonian, and applied to the simplest φ^4 model with spontaneous breaking of the Z_2 symmetry. RG equations are derived at one-loop order for both symmetric and broken phases. The equations are consistent with those derived with the covariant perturbation theory. The regularized light-front Hamiltonians are different between the two phases.

収録刊行物

  • 素粒子論研究

    素粒子論研究 94 (6), F41-F45, 1997

    素粒子論グループ 素粒子論研究 編集部

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