Further Analysis of Scattering Dispersion Relations
نویسندگان
چکیده
منابع مشابه
Further remarks on ππ scattering dispersion relations
The naive use of higher order perturbation theory leads the left–hand cut integrals in ππ dispersion relations [1, 2] divergent. This problem is discussed and solved. Also we point out that the Adler zero condition imposes three constraints on the dispersion relations. The σ pole position is determined using the improved method, Mσ = 483 ± 13MeV,Γσ = 705 ± 50MeV. The scattering length parameter...
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ژورنال
عنوان ژورنال: Chinese Physics Letters
سال: 2003
ISSN: 0256-307X
DOI: 10.1088/0256-307x/20/3/308