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Transverse-single-spin asymmetries of charged pions at midrapidity in transversely polarized p+pp{+}p collisions at s=200\sqrt{s}=200  GeV

Collaboration
Dec 10, 2021
8 pages
Published in:
  • Phys.Rev.D 105 (2022) 3, 032003
  • Published: Feb 1, 2022
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Abstract: (APS)
In 2015, the PHENIX Collaboration has measured single-spin asymmetries for charged pions in transversely polarized p+p collisions at the center-of-mass energy of s=200  GeV. The pions were detected at central rapidities of |η|<0.35. The single-spin asymmetries are consistent with zero for each charge individually, as well as consistent with the previously published neutral-pion asymmetries in the same rapidity range. However, they show a slight indication of charge-dependent differences which may suggest a flavor dependence in the underlying mechanisms that create these asymmetries.
Note:
  • 311 authors from 68 institutions, 8 pages, 3 figures, 1 table. 2015 data. Submitted to Physical Review D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
  • p p: scattering
  • p p: colliding beams
  • p: polarized beam
  • polarization: transverse
  • pi: hadroproduction
  • flavor: dependence
  • spin: asymmetry
  • rapidity
  • PHENIX
  • charge dependence
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