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hep-ph2025
Precision Imaging of the Pion Emission Source in Heavy-Ion Collisions via a Global Rest Frame Analysis
Qi-Chun Feng, Yi-Bo Hao, Yue-Kai Zhou +5
Conventional imaging of pion emission sources, conducted in the center-of-mass frame of individual pion pairs (CMFP), suffers from frame-dependent kinematic distortions that bias t…
nucl-ex2025
Practical Considerations for Measuring Global Spin Density Matrix Elements of Vector Mesons in Heavy-Ion Collisions
Gavin Wilks, Xu Sun, Zhenyu Ye
The STAR Collaboration has reported a significant -meson global spin alignment () signal in Au+Au collisions at GeV by measuring the polar angle di…