W Measurement at PHENIX
C. Kim* and On behalf of the PHENIX collaboration
September 20, 2018
November 23, 2018
The W measurement at RHIC (Relativistic Heavy Ion Collider) provides unique access to the sea quark polarization of the proton. By measuring decay leptons from parity-violating W bosons, which only coupled to left-handed quarks and right-handed antiquarks, a clean, fragmentation free measurement is possible in addition to natural flavor separation. In this talk, we present status and results of single longitudinal spin asymmetry ($A_L$) measurements at PHENIX with data collected in 2011-2013.
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