Baryon electric charge correlation as a magnetometer of QCD
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913351931527168 |
|---|---|
| author | Ding, Heng-Tong Gu, Jin-Biao Kumar, Arpith Li, Sheng-Tai Liu, Jun-Hong |
| author_facet | Ding, Heng-Tong Gu, Jin-Biao Kumar, Arpith Li, Sheng-Tai Liu, Jun-Hong |
| contents | The correlation between net baryon number and electric charge, $χ_{11}^{\rm BQ}$, can serve as a magnetometer of QCD. This is demonstrated by lattice QCD computations using the highly improved staggered quarks with physical pion mass of $M_π=135~$MeV on $N_τ=8$ and 12 lattices. We find that $χ_{11}^{\rm BQ}$ along the transition line starts to increase rapidly with magnetic field strength $eB\gtrsim 2M_π^2$ and by a factor 2 at $eB\simeq 8M_π^2$. Furthermore, the ratio of electric charge chemical potential to baryon chemical potential, $μ_{\rm Q}/μ_{\rm B}$, shows significant dependence on the magnetic field strength and varies from the ratio of electric charge to baryon number in the colliding nuclei in heavy ion collisions. These results can provide baselines for effective theory and model studies, and both $χ_{11}^{\rm BQ}$ and $μ_{\rm Q}/μ_{\rm B}$ could be useful probes for the detection of magnetic fields in relativistic heavy ion collision experiments as compared with corresponding results from the hadron resonance gas model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_08860 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Baryon electric charge correlation as a magnetometer of QCD Ding, Heng-Tong Gu, Jin-Biao Kumar, Arpith Li, Sheng-Tai Liu, Jun-Hong High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory The correlation between net baryon number and electric charge, $χ_{11}^{\rm BQ}$, can serve as a magnetometer of QCD. This is demonstrated by lattice QCD computations using the highly improved staggered quarks with physical pion mass of $M_π=135~$MeV on $N_τ=8$ and 12 lattices. We find that $χ_{11}^{\rm BQ}$ along the transition line starts to increase rapidly with magnetic field strength $eB\gtrsim 2M_π^2$ and by a factor 2 at $eB\simeq 8M_π^2$. Furthermore, the ratio of electric charge chemical potential to baryon chemical potential, $μ_{\rm Q}/μ_{\rm B}$, shows significant dependence on the magnetic field strength and varies from the ratio of electric charge to baryon number in the colliding nuclei in heavy ion collisions. These results can provide baselines for effective theory and model studies, and both $χ_{11}^{\rm BQ}$ and $μ_{\rm Q}/μ_{\rm B}$ could be useful probes for the detection of magnetic fields in relativistic heavy ion collision experiments as compared with corresponding results from the hadron resonance gas model. |
| title | Baryon electric charge correlation as a magnetometer of QCD |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2312.08860 |