• Fine-hyperfine structures of$$c\bar c$$ and$$b\bar b$$ systems in a non-relativistic Hulthen plus linear potentialsystems in a non-relativistic Hulthen plus linear potential

• # Fulltext

https://www.ias.ac.in/article/fulltext/pram/032/01/0001-0011

• # Keywords

Quarkonium; static potential; fine-hyperfine; flavour-independent; decay width; Fermi-Breit Hamiltonian

• # Abstract

The heavy mesons of the charmonium and upsilon family are described in an alternative static potential model chosen in a combination of Hulthen and linear potential. We find that the quark-confining potential in the form of an equal admixture of vector and scalar parts successfully explains the fine-hyperfine structures of$$c\bar c$$ and$$b\bar b$$ systems in a flavour-independent manner. The leptonic decay widths of the vector mesons ofψ and γ families are calculated taking into account the Poggio-Schnitzer correction. We obtain some of the bound states of the yet-to-be observed$$t\bar t$$ system for thet-quark mass ranging from 50 to 200 GeV.

• # Author Affiliations

1. Department of Physics, Regional Engineering College, Rourkela - 769 008, India
2. Department of Physics, Berhampur University, Bhanja Vihar, Berhampur - 760 007, India

• # Pramana – Journal of Physics

Volume 96, 2022
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019