Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00219314" target="_blank" >RIV/68407700:21340/14:00219314 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/14:00433600
Result on the web
<a href="http://arxiv.org/pdf/1404.6880.pdf" target="_blank" >http://arxiv.org/pdf/1404.6880.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.113.072301" target="_blank" >10.1103/PhysRevLett.113.072301</a>

Result language
angličtina
Original language name
Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC
Original language description
We report measurements of single- and double- spin asymmetries for W? and Z/?* boson production in longitudinally polarized p+p collisions at sroot =510 GeV by the STAR experiment at RHIC. The asymmetries for W? were measured as a function of the decay lepton pseudorapidity, which provides a theoretically clean probe of the proton's polarized quark distributions at the scale of the W mass. The results are compared to theoretical predictions, constrained by recent polarized deep inelastic scattering measurements, and show a preference for a sizable, positive up antiquark polarization in the range $0.05
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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