English

Forward Physics at STAR: Status of analysis on forward and mid rapidity correlation measurements in p+p and d+Au

Nuclear Experiment 2019-08-15 v1 High Energy Physics - Experiment

Abstract

Measurements of the production of high energy pi0 mesons at large pseudorapidity, coincident with charged hadrons at mid-rapidity, for proton+proton and deuteron+gold collisions at sqrt(s)_NN=200 GeV are reported. The p+p cross section for inclusive pi0 production follows expectations from next-to-leading order perturbative QCD. Both the inclusive cross section and the di-hadron azimuthal correlations are consistent with a model where parton showers supplement leading-order pQCD. A suppression of the back-to-back azimuthal correlations was observed in d+Au, qualitatively consistent with the gluon saturation picture.

Keywords

Cite

@article{arxiv.nucl-ex/0408004,
  title  = {Forward Physics at STAR: Status of analysis on forward and mid rapidity correlation measurements in p+p and d+Au},
  author = {A. Ogawa},
  journal= {arXiv preprint arXiv:nucl-ex/0408004},
  year   = {2019}
}

Comments

6 pages; 4 eps figures; uses dis04.cls; Submitted talk presented at the "XII International Workshop on Deep Inelastic Scattering" (DIS2004) 14-18 Apr 2004, Strbske Pleso, Slovakia. To be published in proceedings