Spectroscopy of $a_1$ mesons from lattice QCD with the truncated overlap fermions
arxiv(2019)
摘要
We study the ground state and next radial excitation of the $a_1$ mesons from a quenched lattice QCD simulation with the truncated overlap fermions formalism based on domain wall fermions. Our results are consistent with the experimental values for $a_1$(1260) and $a_1$(1640).
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