Recent STAR results on W production and asymmetry in polarized [arrow over p] + [arrow over p] collisions at √r = 500 GeV
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11496_2014_Article_7394.pdf
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Author(s)
Corliss, Ross Cameron
Alternative Title
Recent STAR results on W production and asymmetry in polarized p→+p→ collisions at √r = 500 GeV
Date Issued
January 2014
Journal
Physics of Particles and Nuclei
Publisher
Springer US
Citation
STAR Collaboration, and Ross Corliss. “Recent STAR Results on W Production and Asymmetry in Polarized $$\vec P + \vec P$$ Collisions at √r = 500 GeV.” Physics of Particles and Nuclei 45.1 (2014): 70–72.
Version
Author's final manuscript
Abstract
The production of W± bosons in longitudinally polarized proton + proton collisions at RHIC is a unique way to study the flavor-dependent spin structure of the proton, since at leading order it couples directly and exclusively to specific quark flavor pairings: u + [bar over d] → W[superscript +] and [bar over u] + d → W[superscript -]. Measurement of the longitudinal single-spin asymmetry of the electron decay daughters in W production is sensitive to the polarizations of the quarks involved. Results from the first proton-proton collisions at √r = 500 GeV in 2009 are presented, along with a discussion of the forward-rapidity tracking upgrade.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1134/S1063779614010213
