手性驱动\(\pi \varSigma -{\bar{K}}N\)有限体积模型

IF 2.6 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2025-03-07 DOI:10.1140/epja/s10050-025-01519-3

Peter C. Bruns, Aleš Cieplý

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引用次数: 0

摘要

我们将手性激发\(\pi \varSigma -{\bar{K}}N\)耦合通道模型推广到立方有限体积，并利用它计算了与基于BaSc协作的晶格QCD模拟中得到的谱相吻合的平稳能谱。我们还与BaSc的结果进行了一些比较，特别是将它们的介子-重子散射矩阵的极点位置与我们的手性模型在无限体积中生成的\(\varLambda (1405)\)的两极图联系起来。

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Chirally motivated \(\pi \varSigma -{\bar{K}}N\) model in a finite volume

We generalize the chirally motivated \(\pi \varSigma -{\bar{K}}N\) coupled channels model to the cubic finite volume and use it to calculate the stationary energy spectrum that appears in a nice agreement with the spectrum obtained in the lattice QCD simulations by the BaSc collaboration. Several other comparisons with the BaSc results are made, in particular relating their pole positions of the meson–baryon scattering matrix to the two-pole picture of \(\varLambda (1405)\) generated by our chiral model in the infinite volume.

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来源期刊

The European Physical Journal A 物理-物理：核物理

CiteScore

5.00

自引率

18.50%

发文量

216

审稿时长

3-8 weeks

期刊介绍： Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.