Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model
Quantum Chromodynamics permits the formation of charge conjugation parity violating domains inside the medium produced in heavy-ion collisions, resulting in an imbalanced quark chirality. With the presence of a strong magnetic field (as strong as 1015 T) produced by the spectator protons in offcentr...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/18/epjconf_confxv2022_02005.pdf |
| _version_ | 1797951164241674240 |
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| author | Qiu Shi |
| author_facet | Qiu Shi |
| author_sort | Qiu Shi |
| collection | DOAJ |
| description | Quantum Chromodynamics permits the formation of charge conjugation parity violating domains inside the medium produced in heavy-ion collisions, resulting in an imbalanced quark chirality. With the presence of a strong magnetic field (as strong as 1015 T) produced by the spectator protons in offcentral heavy-ion collisions, this would lead to an electric-charge separation along the direction of the magnetic field, known as the Chiral Magnetic Effect (CME). Experimental searches commonly utilise strategies involving charge-dependent correlators to measure the charge separation. These correlators are, however, dominated by a large background proportional to the elliptic flow v2. This article presents a systematic study of the correlators used experimentally to probe the CME by using the Anomalous Viscous Fluid Dynamics (AVFD) model in Pb-Pb and Xe-Xe collisions at √sNN = 5.02 TeV and √sNN = 5.44 TeV, respectively. The results from AVFD suggest that Xe-Xe collisions are consistent with a background-only scenario and a significant non-zero value of axial current density (imbalanced quark chirality) is required to describe the measurements in Pb-Pb collisions. |
| first_indexed | 2024-04-10T22:26:20Z |
| format | Article |
| id | doaj.art-8769ef1b28c14b12a7d945fc9c3cff88 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-10T22:26:20Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-8769ef1b28c14b12a7d945fc9c3cff882023-01-17T09:14:26ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012740200510.1051/epjconf/202227402005epjconf_confxv2022_02005Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD modelQiu Shi0NikhefQuantum Chromodynamics permits the formation of charge conjugation parity violating domains inside the medium produced in heavy-ion collisions, resulting in an imbalanced quark chirality. With the presence of a strong magnetic field (as strong as 1015 T) produced by the spectator protons in offcentral heavy-ion collisions, this would lead to an electric-charge separation along the direction of the magnetic field, known as the Chiral Magnetic Effect (CME). Experimental searches commonly utilise strategies involving charge-dependent correlators to measure the charge separation. These correlators are, however, dominated by a large background proportional to the elliptic flow v2. This article presents a systematic study of the correlators used experimentally to probe the CME by using the Anomalous Viscous Fluid Dynamics (AVFD) model in Pb-Pb and Xe-Xe collisions at √sNN = 5.02 TeV and √sNN = 5.44 TeV, respectively. The results from AVFD suggest that Xe-Xe collisions are consistent with a background-only scenario and a significant non-zero value of axial current density (imbalanced quark chirality) is required to describe the measurements in Pb-Pb collisions.https://www.epj-conferences.org/articles/epjconf/pdf/2022/18/epjconf_confxv2022_02005.pdf |
| spellingShingle | Qiu Shi Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model EPJ Web of Conferences |
| title | Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model |
| title_full | Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model |
| title_fullStr | Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model |
| title_full_unstemmed | Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model |
| title_short | Studying the Chiral Magnetic Effect in Pb-Pb and Xe-Xe collisions using the AVFD model |
| title_sort | studying the chiral magnetic effect in pb pb and xe xe collisions using the avfd model |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/18/epjconf_confxv2022_02005.pdf |
| work_keys_str_mv | AT qiushi studyingthechiralmagneticeffectinpbpbandxexecollisionsusingtheavfdmodel |