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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.20336 |
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| _version_ | 1866915697680973824 |
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| author | Guo, Ranran Wu, Jin Xu, Mingmei Chen, Xiaosong Li, Zhiming Yin, Zhengning Wu, Yuanfang |
| author_facet | Guo, Ranran Wu, Jin Xu, Mingmei Chen, Xiaosong Li, Zhiming Yin, Zhengning Wu, Yuanfang |
| contents | We develop the eigen-microstate framework as a new approach to identify criticality in relativistic heavy-ion collisions. We construct the original microstate, defined as the final-state particle fluctuations of a single event. By examining ensembles of such original microstates with and without critical signals, we demonstrate that the corresponding eigen-microstate can extract and reveal the dominant critical mode, with the largest eigenvalue serving as a robust order parameter. This framework avoids equilibrium assumptions and is insensitive to non-critical background, and the approach is directly applicable to RHIC Beam Energy Scan data, offering a powerful new tool in the search for the QCD critical point. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_20336 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Eigen-microstate Signatures of Criticality in Relativistic Heavy-Ion Collisions Guo, Ranran Wu, Jin Xu, Mingmei Chen, Xiaosong Li, Zhiming Yin, Zhengning Wu, Yuanfang High Energy Physics - Phenomenology We develop the eigen-microstate framework as a new approach to identify criticality in relativistic heavy-ion collisions. We construct the original microstate, defined as the final-state particle fluctuations of a single event. By examining ensembles of such original microstates with and without critical signals, we demonstrate that the corresponding eigen-microstate can extract and reveal the dominant critical mode, with the largest eigenvalue serving as a robust order parameter. This framework avoids equilibrium assumptions and is insensitive to non-critical background, and the approach is directly applicable to RHIC Beam Energy Scan data, offering a powerful new tool in the search for the QCD critical point. |
| title | Eigen-microstate Signatures of Criticality in Relativistic Heavy-Ion Collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.20336 |