Abstract
The three states, , are measured in and collisions at GeV and rapidities by the PHENIX experiment at the Relativistic Heavy Ion Collider. Cross sections for the inclusive production are obtained. The inclusive yields per binary collision for collisions relative to those in collisions () are found to be in the gold-going direction and in the deuteron-going direction. The measured results are compared to a nuclear-shadowing model, EPS09 [Eskola et al., J. High Energy Phys. 04 (2009) 065], combined with a final-state breakup cross section, , and compared to lower energy results. We also compare the results to the PHENIX results [Adare et al., Phys. Rev. Lett. 107, 142301 (2011)]. The rapidity dependence of the observed suppression is consistent with lower energy measurements.
2 More- Received 19 November 2012
DOI:https://doi.org/10.1103/PhysRevC.87.044909
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