η' Decay to π⁺π^-π⁺π⁻

Author

Ehsan Jafari, University of KentuckyFollow

Date Available

12-7-2018

Year of Publication

2018

Document Type

Doctoral Dissertation

Degree Name

Doctor of Philosophy (PhD)

College

Arts and Sciences

Department/School/Program

Physics and Astronomy

Advisor

Dr. Bing An Li

Abstract

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.

Digital Object Identifier (DOI)

https://doi.org/10.13023/etd.2018.496

Recommended Citation

Jafari, Ehsan, "η' Decay to π⁺π^-π⁺π⁻" (2018). Theses and Dissertations--Physics and Astronomy. 61.
https://uknowledge.uky.edu/physastron_etds/61