Possible existence of charmonium–nucleus bound states
Possible existence of charmonium–nucleus bound states
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可能存在粲素核束缚态
DOI：
10.1093/ptep/ptt087
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Emiko Hiyama and Makoto Oka
中科院分区：
文献类型：
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作者：
Akira Yokota;Emiko Hiyama and Makoto Oka
研究了-核束缚态的可能存在。对于-N和J/ψ-N相互作用，我们采用高斯势。给出了-N作用的散射长度与-NN、J/ψ-NN和He的结合能之间的关系。结果表明，建立-NN态和J/≤ −-NN束缚态需要散射长度为0.95 FM，而对于≤ −0.24 FM，可能存在束缚态。
The possible existence of–nucleus bound states is examined. We adopt Gaussian potentials for the–NandJ/ψ–Ninteractions. The relations between the scattering lengthsaof–Ninteractions and the binding energies of–NN,J/ψ–NN, andHe are given. The results show that scattering lengthsa≤ −0.95 fm are needed to make–NNandJ/ψ–NNbound states, while fora≤ −0.24 fm there may exist aHe bound state.