琴属植物和外来植物的格子研究

The 7th International Workshop on Charm Physics (CHARM 2015), May 18 – 22, 2015, Detroit, MI Pub Date : 2015-05-01 DOI:10.2172/1970445

S. Prelovsek

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引用次数: 10

摘要

综述了查莫尼亚态和奇异类查莫尼亚态的晶格QCD模拟。我报告了第一个探索性模拟谐波共振超过开放粲数阈值，其中考虑了强衰减。讨论了与第一激发标量谐和有关的难题。X(3872)的证据连同对其Fock分量的调查一起被提出。$Z_c^+(3900)$似乎是从HALQCD方法中出现的，这是耦合通道效应$J/\psi \pi -D\bar D^*$的结果。给出了五夸克束缚态$\eta_c N$的指示。

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Lattice studies of charmonia and exotics

The lattice QCD simulations of charmonia and exotic charmonium-like states are reviewed. I report on the first exploratory simulation of charmonium resonances above open charm threshold which takes into account the strong decay. The puzzles related to the first-excited scalar charmonia are discussed. Evidence for X(3872) is presented along with investigation of its Fock components. The $Z_c^+(3900)$ seems to emerge from the HALQCD approach as a result of the coupled channel effect $J/\psi \pi -D\bar D^*$. The indication for the pentaquark bound state $\eta_c N$ is presented.

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来源期刊

The 7th International Workshop on Charm Physics (CHARM 2015), May 18 – 22, 2015, Detroit, MI

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