3 papers
hep-ex2025
Energy Independence of the Collins Asymmetry in Collisions
STAR Collaboration, B. E. Aboona, J. Adam +367
The STAR experiment reports new, high-precision measurements of the transverse single-spin asymmetries for within jets, namely the Collins asymmetries, from transversely…
nucl-ex2025
Observation of coherent (1020) meson photoproduction in ultraperipheral PbPb collisions at = 5.36 TeV
CMS Collaboration
The first observation of coherent (1020) meson photoproduction off heavy nuclei is presented using ultraperipheral lead-lead collisions at a center-of-mass energy per nucleon pa…
nucl-ex2025
Probing gluon fluctuations in nuclei with the first energy-dependent measurement of incoherent J/ photoproduction in ultraperipheral PbPb collisions
CMS Collaboration
Incoherent J/ photoproduction in heavy ion ultraperipheral collisions (UPCs) provides a sensitive probe of localized, fluctuating gluonic structures within heavy nuclei. This st…