晶格QCD中低洼标量介子扇区中的四夸克算子

arXiv: High Energy Physics - Lattice Pub Date : 2019-09-17 DOI:10.1063/5.0008966

D. Darvish, R. Brett, J. Bulava, Jacob Fallica, Andrew D. Hanlon, Ben Horz, C. Morningstar

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引用次数: 2

摘要

晶格QCD允许我们使用单强子和多强子插值算子的基础来探测有限体积的低洼强子谱。本文研究了在含有$m_\pi \approx 230$ MeV的$N_f = 2 + 1$ QCD中含有$K_0^*(700)$ ($\kappa$)和$a_0(980)$的标量介子扇区中包含四夸克算符对谱的影响。给出了利用四夸克算符发现的附加有限体积态的初步结果，并讨论了这些态的可能含义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Including tetraquark operators in the low-lying scalar meson sectors in lattice QCD

Lattice QCD allows us to probe the low-lying hadron spectrum in finite-volume using a basis of single- and multi-hadron interpolating operators. Here we examine the effect of including tetraquark operators on the spectrum in the scalar meson sectors containing the $K_0^*(700)$ ($\kappa$) and the $a_0(980)$ in $N_f = 2 + 1$ QCD, with $m_\pi \approx 230$ MeV. Preliminary results of additional finite-volume states found using tetraquark operators are shown, and possible implications of these states are discussed.

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arXiv: High Energy Physics - Lattice

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