Transverse Single Spin Asymmetries of Heavy Flavor Electrons and Charged Pions in 200 GeV p+p^\uparrow Collisions at Midrapidity

2021/07/30 by D. S. Fitzgerald, Fitzgerald, Dillon
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2108.00085

openalex publication_date 2021/07/30 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

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.

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