Baryon stopping and charge deposition in heavy-ion collisions due to gluon saturation
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916618646323200 |
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| author | Garcia-Montero, Oscar Schlichting, Sören |
| author_facet | Garcia-Montero, Oscar Schlichting, Sören |
| contents | We compute baryon and electric charge deposition in high-energy heavy-ion collisions using the Color Glass Condensate (CGC) Effective Field Theory, where at leading order charge is deposited through multiple scatterings of valence quarks with a saturated gluon target. A simplified phenomenological formula is derived to describe charge deposition, from which the parametrical dependence with collisional energy and geometry can be extracted. We present an approximate analytical prediction of the so-called baryon stopping parameter $α_B$, which shows excellent agreement with the state-of-the art extractions of $α_B$ from experimental data. These results are further validated using the McDIPPER framework, by computing charge deposition at midrapidity across a range of collision energies ($\sqrt{s_{\rm NN}}= 62.4 - 5020$ GeV). |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2409_06788 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Baryon stopping and charge deposition in heavy-ion collisions due to gluon saturation Garcia-Montero, Oscar Schlichting, Sören High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory We compute baryon and electric charge deposition in high-energy heavy-ion collisions using the Color Glass Condensate (CGC) Effective Field Theory, where at leading order charge is deposited through multiple scatterings of valence quarks with a saturated gluon target. A simplified phenomenological formula is derived to describe charge deposition, from which the parametrical dependence with collisional energy and geometry can be extracted. We present an approximate analytical prediction of the so-called baryon stopping parameter $α_B$, which shows excellent agreement with the state-of-the art extractions of $α_B$ from experimental data. These results are further validated using the McDIPPER framework, by computing charge deposition at midrapidity across a range of collision energies ($\sqrt{s_{\rm NN}}= 62.4 - 5020$ GeV). |
| title | Baryon stopping and charge deposition in heavy-ion collisions due to gluon saturation |
| topic | High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2409.06788 |