Effects of the Pion-Pion Resonance and the Three-Pion Resonance or Bound State on Neutral-Pion Decay
نویسندگان
چکیده
منابع مشابه
Electromagnetic Pion Form Factor and Neutral Pion Decay Width
The electromagnetic pion form factor, Fπ(q 2), is calculated for spacelike-q2 in impulse approximation using a confining quark propagator, S, and a dressed quarkphoton vertex, Γμ, obtained from realistic, nonperturbative Dyson-Schwinger equation studies. Good agreement with the available data is obtained for Fπ(q 2) and other pion observables, including the decay π0 → γ γ. This calculation sugg...
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It is well known that if there is no inelasticity, the scattering amplitude must be zero. However, there is no quantitative estimate of the amount of inelasticity required. This is what we try to do. There are various proofs of the fact that the scattering amplitude must be zero if there is no inelasticity. A very appealing attempt has been made by Cheung and Toll [1]. Their idea is to repeated...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1961
ISSN: 0031-899X
DOI: 10.1103/physrev.121.289