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Overview of Recent Spin Physics Results from STAR

Adam Gibson for the STAR Collaboration
Department of Physics and Astronomy, Valparaiso University, Valparaiso, IN 46383, USA

v3.0
As the world's only polarized proton collider, the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory plays an important role in understanding the spin structure of the proton.  The STAR detector, with its large acceptance for calorimetry and tracking, has been used to study polarized proton collisions for more than a decade with a range of jet, meson, and boson probes.  We will discuss jets, neutral pions, and W bosons as probes of the proton's helicity structure.  Here STAR measurements have a significant impact on global fits of sea quark polarizations and have provided the first firm evidence of non-zero gluon polarization within the proton.  We will also discuss W and Z bosons, jets, pions, and pion-jet correlations as probes of the transverse spin structure of the proton, shedding light on such aspects as transverse-momentum-dependent parton distributions and transversity.  We will discuss preliminary and recently published results as well as plans for the future.

v2.0
As the world's only polarized proton collider, the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory plays an important role in understanding the spin structure of the proton.  The STAR detector, with its large acceptance for calorimetry and tracking, has been used to study polarized proton collisions for more than a decade with a range of jet, meson, and boson probes.  We will discuss jets, neutral pions, and W bosons as probes of the proton's helicity structure.  Here STAR measurements have a significant impact on global fits of sea quark polarizations and have provided the first firm evidence of non-zero gluon polarization within the proton.  We will also discuss W and Z bosons, jets, pions, and pion-jet correlations as probes of the transverse spin structure of the proton, shedding light on such aspects as transverse-momentum-dependent parton distributions and transversity.  We will discuss existing published and preliminary results as well as plans for the future.

v1.0
As the world's only polarized proton collider, the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory plays an important role in understanding the spin structure of the proton.  The STAR detector, with its large acceptance for calorimetry and tracking, has been used to study polarized proton collisions for more than a decade with a range of jet, meson, and boson probes.  We will discuss jets, neutral pions, and W bosons as probes of the proton's helicity structure.  Here STAR measurements have a significant impact on global fits of sea quark polarizations and have provided the first firm evidence of non-zero gluon polarization within the proton.  We will discuss W and Z bosons, jets, pions, and pion-jet correlations as probes of the transverse spin structure of the proton, shedding light on the transverse spin structure of the proton.  We will discuss existing published and preliminary results as well as plans for the future.