Pauli-Villars Regularization and One-Loop Finiteness of Type-I Superstring Theory : Particles and Fields

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概要

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• In a previous paper we reanalyzed the issue of one-loop finiteness of the light-cone 4-point amplitude of the type-I SO(N) superstring theory in terms of the Pauli-Villars regularization. The same analysis is applied, in this paper, to the 5-point amplitude in the light-cone formalism as well as to the parity-conserving covariant M-point amplitude and the generality of the previous results is confirmed. Namely, the assignment of the regulator masses to the planar and nonorientable diagrams is essentially arbitrary in the present scheme. However, once a particular mass assignment is fixed, by one way or another, it is firmly established that the one-loop finiteness condition picks up the same N for an arbitrary number M of external lines. In particular, the assignment 2m_P=m_N renders all the one-loop amplitude finite for N=32.

• 理論物理学刊行会の論文
• 1987-01-25

著者

• NAKAZAWA Nobuya

  Department of Physics,Kogakuin University

• YAMAMOTO Hisashi

  Research Institute for Theoretical Physics Hiroshima University

• Yamamoto H

  Department Of Management Engineering Faculty Of Science And Technology Teikyo University Of Science

• NAKAZAWA Naohito

  Department of Physics, Shimane University

• NAKAZAWA Naohito

  Research Institute for Theoretical Physics Hiroshima University

• YAMAMOTO Hiroaki

  Department of Physics, University of Tokyo

• YAMAMOTO Hikaru

  Depart of Physics, Kyoto University

• NAKAZAWA Nobuya

  The Physics Laboratories, Harvard University

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