arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2312.07528hep-latnucl-th
收藏

连续极限外推的高阶重子涨落

Continuum extrapolated high order baryon fluctuations

Szabolcs Borsányi, Zoltán Fodor, Jana N. Guenther, Sándor D. Katz, Paolo Parotto, Attila Pásztor, Dávid Pesznyák, Kálmán K. Szabó, Chik Him Wong

AI总结:

本文首次给出六阶和八阶重子涨落的连续极限结果,证明低温区有限体积效应可控,并发现与有限格距下的既有结果显著不同。

摘要:

涨落在QCD相的研究中起着关键作用。格点QCD是计算涨落的重要工具,但推进到高阶极具挑战性。截至第四阶,连续极限结果自2015年起已有报道。我们首次给出温度范围在$T=130 - 200$ MeV之间的六阶重子涨落的连续极限结果,以及在固定体积下$T=145$ MeV处的八阶结果。我们表明,对于$T \leq 145$ MeV这一与临界性搜索相关的温区,有限体积效应已得到控制。我们的结果与文献中在有限格距下获得的众所周知的结果形成鲜明对比。

英文摘要:

Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuum results are available since 2015. We present the first continuum results for sixth order baryon fluctuations for temperatures between $T=130 - 200$ MeV, and eighth order at $T=145$ MeV in a fixed volume. We show that for $T \leq 145$ MeV, relevant for criticality search, finite volume effects are under control. Our results are in sharp contrast with well known results in the literature obtained at finite lattice spacing.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑