Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector
The interplay of the chiral anomaly and the strong magnetic field (∼1015 T) created in heavy-ion collisions could give rise to a collective excitation in the quark–gluon plasma called the Chiral Magnetic Wave (CMW). This effect can be experimentally sought by the charge asymmetry (Ach) dependence of...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/02/epjconf_sqm2022_01001.pdf |
| _version_ | 1811157411350708224 |
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| author | Wu Wenya |
| author_facet | Wu Wenya |
| author_sort | Wu Wenya |
| collection | DOAJ |
| description | The interplay of the chiral anomaly and the strong magnetic field (∼1015 T) created in heavy-ion collisions could give rise to a collective excitation in the quark–gluon plasma called the Chiral Magnetic Wave (CMW). This effect can be experimentally sought by the charge asymmetry (Ach) dependence of elliptic flow v2. However, non-CMW mechanisms such as local charge conservation (LCC) coupled with collective flow can also lead to a similar dependence of v2 on Ach. The triangular flow (v3) measurement serves as a reference as it is not expected to be affected by the CMW. The v2 and v3 of charged hadrons as a function of Ach measured in Pb–Pb collisions at √SNN=2.76sNN=2.76 and 5.02 TeV are presented. In addition, the event-shape engineering (ESE) technique is adopted for the first time to quantitatively disentangle the CMW signal and the LCC background. The results indicate that the background effects dominate the CMW measurements. |
| first_indexed | 2024-04-10T05:07:04Z |
| format | Article |
| id | doaj.art-4ca779e550e54543ab0fe2fd07094ef8 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-10T05:07:04Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-4ca779e550e54543ab0fe2fd07094ef82023-03-09T12:03:02ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012760100110.1051/epjconf/202327601001epjconf_sqm2022_01001Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detectorWu Wenya0Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan UniversityThe interplay of the chiral anomaly and the strong magnetic field (∼1015 T) created in heavy-ion collisions could give rise to a collective excitation in the quark–gluon plasma called the Chiral Magnetic Wave (CMW). This effect can be experimentally sought by the charge asymmetry (Ach) dependence of elliptic flow v2. However, non-CMW mechanisms such as local charge conservation (LCC) coupled with collective flow can also lead to a similar dependence of v2 on Ach. The triangular flow (v3) measurement serves as a reference as it is not expected to be affected by the CMW. The v2 and v3 of charged hadrons as a function of Ach measured in Pb–Pb collisions at √SNN=2.76sNN=2.76 and 5.02 TeV are presented. In addition, the event-shape engineering (ESE) technique is adopted for the first time to quantitatively disentangle the CMW signal and the LCC background. The results indicate that the background effects dominate the CMW measurements.https://www.epj-conferences.org/articles/epjconf/pdf/2023/02/epjconf_sqm2022_01001.pdf |
| spellingShingle | Wu Wenya Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector EPJ Web of Conferences |
| title | Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector |
| title_full | Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector |
| title_fullStr | Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector |
| title_full_unstemmed | Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector |
| title_short | Search for the Chiral Magnetic Wave in Pb–Pb collisions using the ALICE detector |
| title_sort | search for the chiral magnetic wave in pb pb collisions using the alice detector |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/02/epjconf_sqm2022_01001.pdf |
| work_keys_str_mv | AT wuwenya searchforthechiralmagneticwaveinpbpbcollisionsusingthealicedetector |