Sommerfeld-Watson representation for double-spectral functions |
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| Authors: | D. Atkinson M. Kaekebeke J. S. Frederiksen P. W. Johnson |
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| Affiliation: | (1) Institute for Theoretical Physics, Groningen, The Netherlands;(2) Department of Theoretical Physics, Australian National University, Canberra, Australia;(3) Illinois Institute of Technology, USA Chicago, Illinois |
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| Abstract: | We demonstrate the existence of a solution of the nonlinear pion-pion equations that incorporate crossing symmetry, unitarity andl-plane meromorphy. In particular, we show how to guarantee the boundedness of the partial waves ass  , even when some Regge trajectories rise beyond unity. |
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