Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at root s=510 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00504071" target="_blank" >RIV/61389005:_____/19:00504071 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/19:00333319
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.99.051102" target="_blank" >https://doi.org/10.1103/PhysRevD.99.051102</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.99.051102" target="_blank" >10.1103/PhysRevD.99.051102</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at root s=510 GeV
Original language description
We report new STAR measurements of the single-spin asymmetries A(L) for W+ and W- bosons produced in polarized proton-proton collisions at root s = 510 GeV as a function of the decay-positron and decay-electron pseudorapidity. The data were obtained in 2013 and correspond to an integrated luminosity of 250 pb(-1). The results are combined with previous results obtained with 86 pb(-1). A comparison with theoretical expectations based on polarized lepton-nucleon deep-inelastic scattering and prior polarized proton-proton data suggests a difference between the (u) over bar and (b) over bar quark helicity distributions for 0.05 < x < 0.25. In addition, we report new results for the double-spin asymmetries A(LL) for W-+/-, as well as A(L) for Z/gamma* production and subsequent decay into electron-positron pairs.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
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Volume of the periodical
99
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
051102
UT code for WoS article
000461906000001
EID of the result in the Scopus database
2-s2.0-85064414031