Measurement of charge-dependent directed flow in STAR Beam Energy Scan (BES-II) Au+Au and U+U collisions
We presented the rapidity dependence of directed flow (v1) and its slope (dv1/dy) for π±, K± and P(P¯) in Au+Au collisions at √sNN = 7.7 − 19.6 GeV from the Beam Energy Scan Phase-II, as well as in U+U collisions at √sNN = 193 GeV measured by the STAR experiment. The v1 values are reported as a func...
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06008.pdf |
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| Summary: | We presented the rapidity dependence of directed flow (v1) and its slope (dv1/dy) for π±, K± and P(P¯) in Au+Au collisions at √sNN = 7.7 − 19.6 GeV from the Beam Energy Scan Phase-II, as well as in U+U collisions at √sNN = 193 GeV measured by the STAR experiment. The v1 values are reported as a function of rapidity and centrality. Additionally, the dv1/dy and the charge dependent difference, △(dv1/dy), of the three identified particles in U+U collisions is compared to those in Au+Au and isobar (Ru+Ru and Zr+Zr) collisions. These findings offer insights into the initial electromagnetic field as well as baryon transport at various system sizes and beam energies. |
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| ISSN: | 2100-014X |