Nucleon-nucleon scattering from distillation

Nucleon-nucleon scattering from distillation
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蒸馏产生的核子-核子散射

DOI：
10.22323/1.430.0200
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发表时间：
2022
期刊：
Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022)
影响因子：
--
通讯作者：
H. Wittig
H. Wittig
中科院分区：
--
文献类型：
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作者：
J. Green;Andrew D. Hanlon;P. Junnarkar;H. Wittig

文献摘要

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我们报告了一个基于有限体积光谱学的核子-核子散射的持续分析。的计算是使用蒸馏法在SU（3）对称点上的八个晶格系综与？? = ? ? 420 MeV产生的CLS，涵盖了一系列的晶格间距和体积，以前用于研究？双重子我们获得非零信号？, ? , ?，还有呢？波以及自旋1？然后呢？波为什么？波，晶格伪影是重要的，往往会加强重子-重子相互作用。在氘核和双中子中？波，我们发现虚拟的束缚态。
We report an ongoing analysis of nucleon-nucleon scattering based on finite-volume spectroscopy. The calculation is performed using the distillation method on eight lattice ensembles at the SU(3)-symmetric point with ? ? = ? ? ≈ 420 MeV generated by CLS, covering a range of lattice spacings and volumes and previously used to study the ? dibaryon. We obtain nonzero signals for ? , ? , ? , and ? waves as well as the mixing between spin-1 ? and ? waves. For ? waves, lattice artifacts are significant and tend to strengthen baryon-baryon interactions. In the deuteron and dineutron ? waves, we find virtual bound states.