Parton coalescence and the antiproton/pion anomaly at RHIC.

@article{Greco2003PartonCA,
  title={Parton coalescence and the antiproton/pion anomaly at RHIC.},
  author={Vincenzo Greco and Che Ming Ko and P{\'e}ter L{\'e}vai},
  journal={Physical review letters},
  year={2003},
  volume={90 20},
  pages={
          202302
        }
}
Coalescence of minijet partons with partons from the quark-gluon plasma formed in relativistic heavy ion collisions is suggested as the mechanism for production of hadrons with intermediate transverse momentum. The resulting enhanced antiproton and pion yields at intermediate transverse momenta give a plausible explanation for the observed large antiproton to pion ratio. With further increasing momentum, the ratio is predicted to decrease and approach the small value given by independent… 

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