Unmasking short-range correlations via initial-state fluctuations in relativistic heavy-ion collisions
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912736131153920 |
|---|---|
| author | Li, Pei Sun, Kai-Jia Zhou, Bo Ma, Guo-Liang |
| author_facet | Li, Pei Sun, Kai-Jia Zhou, Bo Ma, Guo-Liang |
| contents | Although relativistic heavy-ion collisions have emerged as a powerful probe for studying nuclear structure, the potential influence of nucleon-nucleon short-range correlations (NN-SRCs) on the initial state has remained an open question. By incorporating NN-SRCs into the initial conditions, we demonstrate that higher-order fluctuations of the initial transverse size, $n$-particle $c_{E/S}\{n\}$, which can be directly mapped to final-state mean transverse momentum fluctuations, exhibit remarkable sensitivity to NN-SRCs. Quantitatively, $c_{E/S}\{3\}$ and $c_{E/S}\{4\}$ differ by more than 10\% between systems with and without NN correlations. Moreover, we report a universal scaling of these quantities with $A^{-1/3}$ and the average nuclear density, mirroring the connection between the SRC effect and the EMC effect in electron scatterings. This work establishes relativistic heavy-ion collisions as a new tool for probing nuclear structure and constraining two-body or many-body NN interactions across different energy scales and system sizes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_23293 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Unmasking short-range correlations via initial-state fluctuations in relativistic heavy-ion collisions Li, Pei Sun, Kai-Jia Zhou, Bo Ma, Guo-Liang Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment Although relativistic heavy-ion collisions have emerged as a powerful probe for studying nuclear structure, the potential influence of nucleon-nucleon short-range correlations (NN-SRCs) on the initial state has remained an open question. By incorporating NN-SRCs into the initial conditions, we demonstrate that higher-order fluctuations of the initial transverse size, $n$-particle $c_{E/S}\{n\}$, which can be directly mapped to final-state mean transverse momentum fluctuations, exhibit remarkable sensitivity to NN-SRCs. Quantitatively, $c_{E/S}\{3\}$ and $c_{E/S}\{4\}$ differ by more than 10\% between systems with and without NN correlations. Moreover, we report a universal scaling of these quantities with $A^{-1/3}$ and the average nuclear density, mirroring the connection between the SRC effect and the EMC effect in electron scatterings. This work establishes relativistic heavy-ion collisions as a new tool for probing nuclear structure and constraining two-body or many-body NN interactions across different energy scales and system sizes. |
| title | Unmasking short-range correlations via initial-state fluctuations in relativistic heavy-ion collisions |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2511.23293 |