• Spin polarizability of hyperons

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      https://www.ias.ac.in/article/fulltext/pram/083/05/0783-0798

    • Keywords

       

      Compton scattering; polarizabilities; heavy baryon chiral perturbation theory.

    • Abstract

       

      We review the recent progress of the theoretical understanding of spin polarizabilities of the hyperon in the framework of $SU$(3) heavy baryon chiral perturbation theory (HBChPT). We present the results of a systematic leading-order calculation of hyperon Compton scattering and extract the forward spin polarizability (𝛾0) of hyperons. The results obtained for $\gamma_0$ in the case of nucleons agree with the known results of $SU$(2) HBChPT when kaon loops are not considered.

    • Author Affiliations

       

      K B Vijaya Kumar1

      1. Department of Physics, Mangalore University, Mangalagangothri 574 199, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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