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首页> 外文期刊>The European Physical Journal, A. Hadrons and Nuclei >Predictions for charmed nuclei based on Y_cN forces inferred from lattice QCD simulations
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Predictions for charmed nuclei based on Y_cN forces inferred from lattice QCD simulations

机译：基于晶格QCD模拟推断的Y_CN力的迷人核预测

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摘要

Charmed nuclei are investigated utilizing Λ_cN and Σ_cN interactions that have been extrapolated from lattice QCD simulations at unphysical masses of m_π = 410–570 MeVto the physical point using chiral effective field theory as guideline. Calculations of the energies of Λ_c single-particle bound states for various charmed nuclei from _(Λ_c)~5Li to _(Λ_c)~(209)Bi are performed using a perturbative many-body approach. This approach allows one to determine the finite nuclei Λ_c self-energy from which the energies of the different bound states can be obtained. Though the Λ_cN interaction inferred from the lattice results is only moderately attractive, it supports the existence of charmed nuclei. Already the lightest nucleus considered is found to be bound. The spin-orbit splitting of the p- and d-wave states turns out to be small, as in the case of single Λ hypernuclei. Additional calculations based on the Faddeev-Yakubovsky equations suggest that also A = 4 systems involving a Λ_c baryon are likely to be bound, but exclude a bound _(Λ_c)~3He state.
机译：利用∧_cN和∑_cN相互作用研究了有魅力的原子核，这些相互作用是在m_π=410–570 MeV的非物理质量下，以手征有效场理论为指导，从晶格QCD模拟外推到物理点的。用微扰多体方法计算了从∧∧c）~5Li到∧c）~（209）Bi的各种魅力核的∧c单粒子束缚态的能量。这种方法可以确定有限核∧c自能，从中可以得到不同束缚态的能量。尽管从晶格结果推断出的∧_-cN相互作用仅具有中等吸引力，但它支持有魅力核的存在。已经发现被认为是最轻的原子核是束缚的。p波和d波态的自旋轨道分裂很小，就像单个∧超核的情况一样。基于Faddeev-Yakubovsky方程的额外计算表明，涉及∧c重子的A=4系统也可能被束缚，但不包括束缚c（∧c）~3He态。

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  • 作者

    Johann Haidenbauer; Andreas Nogga; Isaac Vida?a;

  • 作者单位

    Institute for Advanced Simulation Institut für Kernphysik (Theorie) and Jülich Center for Hadron Physics Forschungszentrum Jülich 52425 Jülich Germany;

    Institute for Advanced Simulation Institut für Kernphysik (Theorie) and Jülich Center for Hadron Physics Forschungszentrum Jülich 52425 Jülich Germany;

    Istituto Nazionale di Fisica Nucleare Sezione di Catania Dipartimento di Fisica "Ettore Majorana" Università di Catania Via Santa Sofia 64 95123 Catania Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 原子核物理学;
  • 关键词

    Predictions; charmed; nuclei;

    机译：预测;迷人的;核;

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