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arXiv · 1712.10180

Strong decays of the higher isovector scalar mesons

Guan-Ying Wang·Shi-Chen Xue·Guan-Nan Li·En Wang·De-Min Li
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Abstract

Under the assignment of $a_0(1450)$ as the ground isovector scalar meson, the strong decays of $a_0(1950)$ and $a_0(2020)$ are evaluated in the $^3P_0$ model. Our calculations suggest that $a_0(1950)$ and $a_0(2020)$ can be regarded as the same resonance referring to $a_0(3^3P_0)$. The masses and strong decays of $a_0(2^3P_0)$ and $a_0(4^3P_0)$ are also predicted, which can be useful in the search for radially excited scalar mesons in the future.

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Guan-Ying Wang, Shi-Chen Xue, Guan-Nan Li, En Wang, De-Min Li. 2017-12-29. Strong decays of the higher isovector scalar mesons. https://doi.org/10.1103/physrevd.97.034030

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