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arXiv · 2401.00400

Critical point in heavy-quark region of QCD on fine lattices

Masakiyo Kitazawa·Ryo Ashikawa·Shinji Ejiri·Kazuyuki Kanaya·Hiroto Sugawara
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Abstract

We perform a finite-size scaling analysis of the critical point in the heavy-quark region of QCD at nonzero temperature. Our previous analysis on the Binder cumulant at $N_t=4$ is extended to finer lattices with $N_t=6$ and $8$. The aspect ratio is also extended up to $15$ to suppress the non-singular contribution. High-precision analysis of the Binder cumulant is realized by an efficient Monte-Carlo simulation with the hopping-parameter expansion (HPE). Effects of higher-order terms in the HPE are incorporated by the reweighting method.

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Masakiyo Kitazawa, Ryo Ashikawa, Shinji Ejiri, Kazuyuki Kanaya, Hiroto Sugawara. 2023-12-31. Critical point in heavy-quark region of QCD on fine lattices. https://arxiv.org/abs/2401.00400

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