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<em>η'</em> Decay to π<sup>+</sup>π<sup>-</sup>π<sup>+</sup>π<sup>−</sup>

With the use of chiral theory of mesons [1], [2] we evaluate the decay rate of η′ → π+π−π+π−. Our theoretical study of this problem is different from the previous theo- retical study [3] and our predicted result is in a good agreement with the experiment. In this chiral theory we evaluate Feynman diagrams up to one loop and the decay rate is calculated with the use of triangle and box diagrams. The ρ0 meson includes in both type of diagrams as a resonance state. Divergent integrals in the loop calculations are regularized with the use of n-dimensional ’t Hooft-Veltman regularization technique. At the last step to obtain the decay rate, the phase space integral has been calculated.

Identiferoai:union.ndltd.org:uky.edu/oai:uknowledge.uky.edu:physastron_etds-1060
Date01 January 2018
CreatorsJafari, Ehsan
PublisherUKnowledge
Source SetsUniversity of Kentucky
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceTheses and Dissertations--Physics and Astronomy

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