Abstract
Cronin effect — nuclear enhancement — on pion production in pA and dAu collisions is investigated in close-to-midrapidity regions, |η|≦1.5. Using a perturbative QCD improved parton model we analyze pion production in pBe and pCu collisions at energies E lab=500, 530 and 800 GeV in fix target FNAL-E706 experiment. Next we perform calculations at RHIC collider energy, √s NN =200 GeV, and the obtained nuclear modification factor for pions, R dAuπ is compared to experimental data by PHOBOS. Our description contains conventional nuclear shadowing and multiscattering. Magnitudes and tendencies of the measured data are reproduced properly at the above energies.
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Barnaföldi, G.G., Lévai, P., Papp, G. et al. Cronin effect in close-to-midrapidity regions at FNAL and RHIC energies. Acta Phys. Hung. A 22, 325–334 (2005). https://doi.org/10.1556/APH.22.2005.3-4.19
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DOI: https://doi.org/10.1556/APH.22.2005.3-4.19