8 papers
Evidence of Spin-Interference Effects in Exclusive Photoproduction in Ultraperipheral Heavy-Ion Collisions
The STAR Collaboration
We report the first evidence of spin interference in exclusive photoproduction in ultraperipheral heavy-ion collisions at STAR at ~GeV. In Au+…
Study of Central Exclusive Production of , and Pairs in Proton-Proton Collisions at GeV with the STAR Detector at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +385
We report on the first measurement of the Central Exclusive Production process in proton-proton collisions: (where ) at the center-of-…
First measurement of massive virtual photon emission from N* baryon resonances
R. Abou Yassine, J. Adamczewski-Musch, O. Arnold +127
First information on the time-like electromagnetic structure of baryons in the second resonance region has been obtained from measurements of dielectron (e+ e-) invariant-mass and…
Measuring spin correlation between quarks during QCD confinement
The STAR Collaboration
The vacuum is now understood to possess a rich and complex structure, characterized by fluctuating energy fields and a condensate of virtual quark-antiquark pairs. The spontaneous…
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…
Formation and lifetime measurements of light hypernuclei in Ag+Ag collisions at = 2.55 GeV
R. Abou Yassine, J. Adamczewski-Musch, C. Asal +111
We present the first observation of and in Ag+Ag collisions at = 2.55 GeV, emitted around mid-rapidity. The hypernu…