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    題名: Triviality of monomial Higgs potentials
    作者: 曹慶堂;Cho, Hing-tong;Milton, Kimball A.;Cline, James;Pinsky, Stephen S.;Simmons, L. M. Jr.
    貢獻者: 淡江大學物理學系
    日期: 1990-01-15
    上傳時間: 2009-12-31 10:38:30 (UTC+8)
    出版者: Elsevier
    摘要: The δ expansion method is used to study all scalar field theories with symmetric monomial self-interactions of the form (φ2)p in four dimensions. With a momentum cut-off Λ it is shown that these theories are all distinct, admit spontaneous symmetry breaking, and have a nonperturbative structure in the coupling constant λ. In the limit that the momentum cut-off is taken to infinity, it is shown that the δ expansion of all these theories degenerates to the renormalized expansion of a single theory independent of p. That expansion is the renormalized weak-coupling expansion of λφ4. It is argued that all theories of this class are the same in the limit Λ → ∞. This universal behavior of all monomial interactions with the discrete symmetry φ → −φ is interpreted as a strong indication that all such theories are free, as λφ4 is believed to be.
    關聯: Nuclear physics B 329(3), pp.574-582
    DOI: 10.1016/0550-3213(90)90071-K
    顯示於類別:[物理學系暨研究所] 期刊論文

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