Upsilon measurements in the STAR experiment
Find in your Library
arXiv preprint arXiv:1005.4100.
The Υ(1S+2S+3S)→e+e− cross section is measured at mid-rapidity (y) in p+p collisions and in d+Au collisions at center-of-mass energy s√ = 200 GeV with the STAR detector at RHIC. In p+p, the measured cross section is found to be consistent with the world data trend as a function of s√, in agreement with the Color Evaportaion Model (CEM), and underestimated by the Color Singlet Model (CSM) up to the Next-to-Leading-Order Quantum Chromodynamics (NLO QCD) calculations. In d+Au, the measured cross section is in agreement with the CEM prediction with anti-shadowing effects, and the nuclear modification factor indicates that Υ(1S+2S+3S) production follows binary scaling within the current uncertainties. These measurements provide a benchmark for the future measurements of Υ production in Au+Au collisions.
(2015). Upsilon measurements in the STAR experiment. arXiv preprint arXiv:1005.4100., 1–4.
"Upsilon measurements in the STAR experiment." arXiv preprint arXiv:1005.4100., 2015, pp. 1–4.