Transverse Single-Spin Asymmetries of Midrapidity Direct Photons and Neutral Mesons at PHENIX

  title={Transverse Single-Spin Asymmetries of Midrapidity Direct Photons and Neutral Mesons at PHENIX},
  author={Nicole Lewis},
  journal={SciPost Physics Proceedings},
  • N. Lewis
  • Published 21 July 2021
  • Physics
  • SciPost Physics Proceedings
Results are presented for the transverse single-spin asymmetries of direct photons, neutral pions, and eta mesons for |\eta|<0.35|η|<0.35 from p^\uparrow + pp↑+p collisions with \sqrt{s} = 200s=200 GeV at PHENIX. As hadrons, \pi^0π0 and \etaη mesons are sensitive to both initial- and final-state effects and at midrapidity probe the dynamics of gluons along with a mix of quark flavors. Because direct photon production does not include hadronization, the direct photon TSSA is only sensitive to… 
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