SciPost Phys. Proc. 8, 012 (2022) ·
published 11 July 2022
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Transverse single spin asymmetries of particles produced in $p+p^{\uparrow}$
collisions provide insight on the partonic spin and momentum structure of
hadrons; heavy flavor electrons provide access to initial state spin-momentum
correlations of gluons in the proton, while charged pions provide access to
initial and final state transverse spin effects. Charged particles are measured
at midrapidity at PHENIX using the silicon vertex detector and central arm
spectrometer, made of an electromagnetic calorimeter, a ring-imaging Cherenkov
detector, and drift and pad chambers. Recent results for both electron and
charged pion measurements from the 2015 running period will be presented.
