Abstract
The fraction of mesons which come from -meson decay, , is measured for rapidity and in and Cu+Au collisions at = 200 GeV with the PHENIX detector. The extracted fraction is (stat) 0.010(syst) for collisions. For Cu+Au collisions, is 0.094 0.028(stat) 0.037(syst) in the Au-going direction () and 0.089 0.026(stat) 0.040(syst) in the Cu-going direction (). The nuclear modification factor, , of mesons in Cu+Au collisions is consistent with binary scaling of measured yields in at both forward and backward rapidity.
8 More- Received 13 February 2017
DOI:https://doi.org/10.1103/PhysRevC.96.064901
©2017 American Physical Society