Z. Zhang

collaborators

3 papers

nucl-ex2026

Evidence of Spin-Interference Effects in Exclusive $J / I ¨ \to e^{+} e^{-}$ Photoproduction in Ultraperipheral Heavy-Ion Collisions

The STAR Collaboration

We report the first evidence of spin interference in exclusive $J / I ¨ \to e^{+} e^{-}$ photoproduction in ultraperipheral heavy-ion collisions at STAR at $s_{N N} = 200$ ~GeV. In Au+…

nucl-ex2024

Tracking the baryon number with nuclear collisions

STAR Collaboration

Baryon quantum number is believed to be conserved since baryogenesis in the early Universe. While fractionally charged valence quarks are understood conventionally to each carry a…

nucl-ex2024

Observation of strong nuclear suppression in exclusive $J / I ¨ $ photoproduction in Au $+$ Au ultra-peripheral collisions at RHIC

STAR Collaboration

We report a measurement of exclusive $J / I ¨ $ photoproduction in Au $+$ Au ultra-peripheral collisions at $s_{_{NN}} = 200$ GeV using the STAR detector. For the first time,…

Evidence of Spin-Interference Effects in Exclusive J/I¨→e+e− Photoproduction in Ultraperipheral Heavy-Ion Collisions

Tracking the baryon number with nuclear collisions

Observation of strong nuclear suppression in exclusive J/I¨ photoproduction in Au+Au ultra-peripheral collisions at RHIC

Evidence of Spin-Interference Effects in Exclusive $J / I ¨ \to e^{+} e^{-}$ Photoproduction in Ultraperipheral Heavy-Ion Collisions

Observation of strong nuclear suppression in exclusive $J / I ¨ $ photoproduction in Au $+$ Au ultra-peripheral collisions at RHIC