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1964 (1)
1Author    G. Heber, H. J. KaiserRequires cookie*
 Title    Functional Solution Scheme for Relativistic Strong Coupling Theory I  
 Abstract    The vacuum expectation value of the S-matrix is represented, following HORI, as a functional integral and separated according to 5Vac = exp(— i W) f D (p exp(—i / dxLw). Now, the functional integral involves only the part Lw of the Lagrangian without derivatives and can be easily cal-culated in lattice space. We propose a graphical scheme which formalizes the action of the operator r = / dx dy <5(x — y) (ö/do(y)) Qj(^/«5o(x)) . The scheme is worked out in some detail for the calculation of the two-point-function of neutral BOSE fields with the self-interaction / (p M for even M. A method is proposed which under certain convergence assumptions should yield in a finite number of steps the lowest mass eigenvalues and the related matrix elements. The method exhibits characteristic differences between renormalizable and nonrenormalizable theories. 
  Reference    (Z. Naturforschg. 19a, 828—834 [1964]; eingegangen am 29. Januar 1964) 
  Published    1964 
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 TEI-XML for    default:Reihe_A/19/ZNA-1964-19a-0828.pdf 
 Identifier    ZNA-1964-19a-0828 
 Volume    19