2003/08/15 by V. N. Maiorov, Maiorov, V. N., O. O. Patarakin +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0308162
8 pages, 4 postscript figures, LaTeX; typos corrected, references updated and expanded, added more material in Sect.3
arxiv created 2003/10/08 · arxiv updated 2009/12/01
It is shown that the linear correlation relates the S-wave phase shifts from the threshold up to dipion mass 900 MeV. By using this correlation at the solution of the Roy equations, the accuracy of determination of S-wave lengths is considerably improved. The obtained result unambiguously witnesses in favor of the standard ChPT version with large quark condensate.