English

Recent Longitudinal Spin Asymmetry Measurements for Inclusive Jet Production at STAR

High Energy Physics - Experiment 2019-08-13 v1

Abstract

We present measurements of the longitudinal spin asymmetry, ALLA_{LL}, for the inclusive jet signal at STAR. The data presented here are mid-rapidity jets in the transverse momentum range of 5<pT<355<pT<35 GeV/c and come from polarized proton-proton collisions at center of mass energies of s=200\sqrt{s}=200 GeV. We compare our measured ALLA_{LL} values to predictions derived from various parameterizations of the polarized gluon distribution function. The results are shown to provide significant constraints for allowable gluon parameterizations within the measurement's kinematic Bjorken-x range of 0.03<x<0.30.03<x<0.3.

Keywords

Cite

@article{arxiv.0902.1345,
  title  = {Recent Longitudinal Spin Asymmetry Measurements for Inclusive Jet Production at STAR},
  author = {David Staszak},
  journal= {arXiv preprint arXiv:0902.1345},
  year   = {2019}
}

Comments

3 pages, 4 figures, to appear in PANIC 2008 Proceedings, Nuclear Physics A special issue