Arrangement for $K_2^{\ast }$ meson family

Abstract

Two observed structures with $M=1868\pm 8_{-57}^{+40}$ MeV and $M=2073\pm 94_{-240}^{+245}$ MeV are the same states ($K_2^{\ast }(1980)$) in PDG.The analysis of the mass spectrum and the calculation of the strong decay of $K_2^{\ast }$ mesons support the low mass state of $K_2^{\ast }(1980)$ as $2^3{P}_2$ and the high mass state of $K_2^{\ast }(1980)$ as $1^3{F}_2$ in this letter. This analysis brings us very important criterion for the assignment of the observed $K_2^{\ast }(1980)$ and experimental findings for this assignment is suggested. Additionally, prediction of some partial decay widths are made on the high excitations of $K_2^{\ast }$ family. This study is crucial to establishing and searching for their higher excitations in the future.

Comments: 9 pages, 6 figures. arXiv admin note: text overlap with arXiv:1810.02694