Singularity Analysis in A_n Affine Toda Theories : Particles and Fields

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概要

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• The leading and the subleading Landau singularities in affine Toda field theories are examined in some detail. Formulae describing the subleading simple pole structure of box diagrams are given explicitly. This leads to a new and nontrivial test of the conjectured exact S-matrices for these theories. We show that to the one-loop level the conjectured S-matrices of the A_n Toda family reproduce the correct singularity structure, leading as well as subleading, of the field theoretical amplitudes. The present test has the merit of being independent of the details of the renormalisations.

• 理論物理学刊行会の論文
• 1992-12-25

著者

• SASAKI Ryu

  Yukawa Institute for Theoretical Physics, Kyoto University

• Sasaki R

  Kyoto Univ. Kyoto Jpn

• Braden H

  Univ. Edinburgh Edinburgh

• BRADEN H.W.

  Department of Mathematics, University of Edinburgh

• CHO H.S.

  Physics Department, Korea Advanced Institute of Science and Technology

• KIM J.D.

  Physics Department, Korea Advanced Institute of Science and Technology

• KOH I.G.

  Physics Department, Korea Advanced Institute of Science and Technology

• SASAKI R.

  Uji Research Center, Yukawa Institute for Theoretical Physics Kyoto University

• Kim J.d.

  Physics Department Korea Advanced Institute Of Science And Technology

• Cho H.s.

  Physics Department Korea Advanced Institute Of Science And Technology

• Koh I.g.

  Physics Department Korea Advanced Institute Of Science And Technology

• Sasaki Ryu

  Max-planck-institute Fur Physik Und Astrophysik

• SASAKI Ryu

  Uji Research Center, Yukawa Institute for Theoretical Physics Kyoto University:Department of Mathematical Sciences, University of Durham

• Braden H.W.

  Department of Mathematics and Statistics, University of Edinburgh

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