Gluon polarization measurements with inclusive jets at STAR

Pibero Djawotho

Gluon polarization measurements with inclusive jets at STAR

Nuclear Experiment 2019-08-13 v1

Authors: Pibero Djawotho

Abstract

At RHIC kinematics, polarized jet hadroproduction is dominated by $gg$ and $qg$ scattering, making the jet double longitudinal spin asymmetry, $A_{LL}$ , sensitive to gluon polarization in the nucleon. I will present STAR results of $A_{LL}$ from inclusive jet measurements for the RHIC 2006 run at center-of-mass energy 200 GeV. I will also discuss the current status of the analysis of data from the 2009 run, also at center-of-mass energy 200 GeV. The results are compared with theoretical calculations of $A_{LL}$ based on various models of the gluon density in the nucleon. The STAR data place significant constraints on allowed theoretical models.

Keywords

gluon polarization inclusive jets double longitudinal spin asymmetry RHIC STAR

Cite

@article{arxiv.1106.5769,
  title  = {Gluon polarization measurements with inclusive jets at STAR},
  author = {Pibero Djawotho},
  journal= {arXiv preprint arXiv:1106.5769},
  year   = {2019}
}

Comments

4 pages, 5 figures, XIX International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2011)

Gluon polarization measurements with inclusive jets at STAR

Abstract

Keywords

Cite

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