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arXiv 2203.03007hep-ph
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用额外夸克拟合奇异强子谱

Fitting the exotic hadron spectrum with an additional quark

Institute for Quantum Studies, Chapman University(查普曼大学量子研究所)

Scott Chapman

AI总结:

假设存在第七种夸克,可解释奇异强子谱的结构,该夸克质量约2.9GeV,电荷-1/3,且轻标量玻色子模型能复现其产生和衰变模式。

摘要:

过去20年中发现的大多数奇异隐含底子强子可以很好地拟合到夸克模型中的正常meson和baryon中,如果假设存在第七种夸克。为了使该夸克能复现奇异强子的谱(质量、自旋、宇称),其质量必须约为2.9GeV,电荷为-1/3。这些强子的观测产生和衰变模式可以通过包含轻标量玻色子的模型来复现。

英文摘要:

Most of the exotic hidden-charm hadrons discovered over the last 20 years fit neatly into the quark model as normal mesons and baryons if the existence of a seventh flavor of quark is hypothesized. For the quark to reproduce the spectrum (mass, spin, parity) of exotic hadrons, it would have to have a mass of $\sim$2.9 GeV and a charge of $-\tfrac{1}{3}$. The observed production and decay modes of these hadrons can be reproduced by a model that also includes light scalar bosons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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