Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR
The STAR collaboration observed a significant global spin alignment (ρ00) signal for ϕ-mesons in Au+Au collisions using the data from the BES-I [1] which cannot be explained by conventional mechanisms, but may be attributable to the influence of a ϕ-meson force field [2–6]. In this talk, we present...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
|
| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06014.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832098388130136064 |
|---|---|
| author | Wilks Gavin |
| author_facet | Wilks Gavin |
| author_sort | Wilks Gavin |
| collection | DOAJ |
| description | The STAR collaboration observed a significant global spin alignment (ρ00) signal for ϕ-mesons in Au+Au collisions using the data from the BES-I [1] which cannot be explained by conventional mechanisms, but may be attributable to the influence of a ϕ-meson force field [2–6]. In this talk, we present differential measurements of ϕ-meson global spin alignment using the STAR detector in Au+Au collisions at √sNN = 14.6 and 19.6 GeV from the second phase of the Beam Energy Scan at RHIC (BES-II). The first rapidity (y) dependent ρ00 results for ϕ-mesons will be shown, alongside new centrality and transverse momentum (pT) dependent measurements. The results presented in these proceedings will help understand the potential link of global spin alignment to vector meson fields and their roles in the evolution of nuclear matter. |
| format | Article |
| id | doaj-art-1c54be3c03be41b28ef9795743dc3470 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-1c54be3c03be41b28ef9795743dc34702025-02-05T10:53:02ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160601410.1051/epjconf/202531606014epjconf_sqm2024_06014Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STARWilks Gavin0University of Illinois at ChicagoThe STAR collaboration observed a significant global spin alignment (ρ00) signal for ϕ-mesons in Au+Au collisions using the data from the BES-I [1] which cannot be explained by conventional mechanisms, but may be attributable to the influence of a ϕ-meson force field [2–6]. In this talk, we present differential measurements of ϕ-meson global spin alignment using the STAR detector in Au+Au collisions at √sNN = 14.6 and 19.6 GeV from the second phase of the Beam Energy Scan at RHIC (BES-II). The first rapidity (y) dependent ρ00 results for ϕ-mesons will be shown, alongside new centrality and transverse momentum (pT) dependent measurements. The results presented in these proceedings will help understand the potential link of global spin alignment to vector meson fields and their roles in the evolution of nuclear matter.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06014.pdf |
| spellingShingle | Wilks Gavin Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR EPJ Web of Conferences |
| title | Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR |
| title_full | Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR |
| title_fullStr | Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR |
| title_full_unstemmed | Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR |
| title_short | Differential measurements of ϕ-meson global spin alignment in Au+Au collisions at STAR |
| title_sort | differential measurements of ϕ meson global spin alignment in au au collisions at star |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06014.pdf |
| work_keys_str_mv | AT wilksgavin differentialmeasurementsofphmesonglobalspinalignmentinauaucollisionsatstar |