中文

夸克多体效应对异构哈达尔的影响

高能物理 - 唯象学 2024-05-28 v1

摘要

我们研究由两只轻粒子和两只重反粒子组成的异构哈达尔,(qQˉ)(q\bar Q)-(qQˉ)(q\bar Q)。已知,夸克之间的自旋依赖项会在异种-0 ucˉdcˉu\bar c d\bar c 系统中,TccT_{cc},为udud自旋-0分量提供吸引。然而,该分量也会因部分Pauli-blocking而受到排斥。通过简化的夸克模型进行动力学计算,我们讨论了这两种效应的竞争导致TccT_{cc}形成浅束缚态,这符合实验偏好,同时TbbT_{bb}形成深束缚态。

关键词

引用

@article{arxiv.2405.11552,
  title  = {The impact of quark many-body effects on exotic hadrons},
  author = {Sachiko Takeuchi and Makoto Takizawa and Yasuhiro Yamaguchi and Atsushi Hosaka},
  journal= {arXiv preprint arXiv:2405.11552},
  year   = {2024}
}

备注

11 pages, 2 figures; 25th European Few-Body Conference (Mainz, Germany, from July 30th to August 4th, 2023). This preprint has not undergone peer review (when applicable) or any post-submission improvements or corrections. The Version of Record of this article is published in Few Body Systems, and is available online at https://doi.org/10.1007/s00601-024-01932-2