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arXiv · 1401.1134

Light axial-vector tetraquark state candidate: $a_1(1420)$

Zhi-Gang Wang
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Abstract

In this article, we study the axial-vector tetraquark state and two-quark-tetraquark mixed state consist of light quarks using the QCD sum rules. The present predictions disfavor assigning the $a_1(1420)$ as the axial-vector tetraquark state with $J^{PC}=1^{++}$, while support assigning the $a_1(1420)$ as the axial-vector two-quark-tetraquark mixed state.

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Zhi-Gang Wang. 2014-01-03. Light axial-vector tetraquark state candidate: $a_1(1420)$. https://arxiv.org/abs/1401.1134

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