来自 QCD 的 3、4 和 5 种颜色的等时空-2 先驱散射长度的曲线坍缩

arXiv - PHYS - High Energy Physics - Lattice Pub Date : 2024-09-03 DOI:arxiv-2409.02242

Thomas DeGrand

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摘要

我展示了通过模拟具有 $N_c=3$、4 和 5 色以及 $N_f=2$ 种变质质量费米子的 QCD，在等时空-双通道中对先驱-先驱散射长度的比较。散射长度随 1/N_c$ 变化，正如大 N_c$ 计数参数所预期的那样。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Curve collapse for the isospin-2 pion scattering length from QCD with 3, 4, and 5 colors

I show comparisons of the pion - pion scattering length in the isospin - two channel from simulations of of QCD with $N_c = 3$, 4 and 5 colors and $N_f = 2$ flavors of degenerate mass fermions. The scattering length varies as $1/N_c$, as expected from large $N_c$ counting arguments.

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arXiv - PHYS - High Energy Physics - Lattice

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