A direct probe of $Λ$ potential in nuclear medium
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866910418086133760 |
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| author | Yong, Gao-Chan |
| author_facet | Yong, Gao-Chan |
| contents | Using the Liège intranuclear-cascade model together with the ablation model ABLA, an investigation is conducted into the effects of $Λ$ potential in $Λ$-nucleus and $Λ$-hypernucleus-nucleus collisions across various beam energies. The findings show that the angle and transverse-momentum distributions of scattered $Λ$ hyperon, the scattering cross section of the $Λ$ hyperon in $Λ$-nucleus collisions as well as the rapidity distribution of $Λ$ hyperon in $Λ$-hypernucleus-nucleus collisions are significantly influenced by the strength of the $Λ$ potential in these scattering reactions across various beam energies. These demonstrations, unhindered by the uncertainties of $Λ$ and hypernuclei productions in nuclear medium, allow for a direct investigation of the $Λ$ potential, especially its momentum dependence. The criticality of probing the $Λ$ potential is closely associated with the resolution of the "hyperon puzzle" in neutron stars. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_18831 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A direct probe of $Λ$ potential in nuclear medium Yong, Gao-Chan Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment Using the Liège intranuclear-cascade model together with the ablation model ABLA, an investigation is conducted into the effects of $Λ$ potential in $Λ$-nucleus and $Λ$-hypernucleus-nucleus collisions across various beam energies. The findings show that the angle and transverse-momentum distributions of scattered $Λ$ hyperon, the scattering cross section of the $Λ$ hyperon in $Λ$-nucleus collisions as well as the rapidity distribution of $Λ$ hyperon in $Λ$-hypernucleus-nucleus collisions are significantly influenced by the strength of the $Λ$ potential in these scattering reactions across various beam energies. These demonstrations, unhindered by the uncertainties of $Λ$ and hypernuclei productions in nuclear medium, allow for a direct investigation of the $Λ$ potential, especially its momentum dependence. The criticality of probing the $Λ$ potential is closely associated with the resolution of the "hyperon puzzle" in neutron stars. |
| title | A direct probe of $Λ$ potential in nuclear medium |
| topic | Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2402.18831 |