{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.73441.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1292792"}},{"@id":"https://doi.org/10.1103/PhysRevLett.113.072301","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2016","description":"BNL-RHIC.  We report measurements of single- and double- spin asymmetries for $W^{\\pm}$ and $Z/\\gamma^*$ boson production in longitudinally polarized $p+p$ collisions at $\\sqrt{s} = 510$ GeV by the STAR experiment at RHIC. The asymmetries for $W^{\\pm}$ 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 $0.05<x<0.2$.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t1","@type":"Dataset","description":"$E_T^e$ distribution of $W^{\\pm}$ candidate events, background contributions, and sum of backgrounds and W -> ev MC signal. This plot...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t2","@type":"Dataset","description":"$E_T^e$ distribution of $W^{\\pm}$ candidate events, background contributions, and sum of backgrounds and W -> ev MC signal. This plot...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t3","@type":"Dataset","description":"$E_T^e$ distribution of $W^{\\pm}$ candidate events, background contributions, and sum of backgrounds and W -> ev MC signal. This plot...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t4","@type":"Dataset","description":"$E_T^e$ distribution of $W^{\\pm}$ candidate events, background contributions, and sum of backgrounds and W -> ev MC signal. This plot...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t5","@type":"Dataset","description":"Signed $P_T$-balance distribution for e+/e- candidates reconstructed in the EEMC.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t6","@type":"Dataset","description":"Distribution of the product of the TPC reconstructed charge sign and $E_T/p_T$.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t7","@type":"Dataset","description":"Distribution of the invariant mass of Z/$\\gamma^*$ -> e+ e- candidate events, with MC for comparison.","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t8","@type":"Dataset","description":"Longitudinal single-spin asymmetry $A_L$ for W+ production as a function of lepton pseudorapidity.","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t9","@type":"Dataset","description":"Longitudinal single-spin asymmetry $A_L$ for W- production as a function of lepton pseudorapidity.","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t10","@type":"Dataset","description":"Longitudinal single-spin asymmetry $A_L$ for W+ production as a function of lepton pseudorapidity.","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t11","@type":"Dataset","description":"Longitudinal double-spin asymmetry $A_{LL}$ for W+ production as a function of lepton pseudorapidity.","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t12","@type":"Dataset","description":"Longitudinal double-spin asymmetry $A_{LL}$ for W- production as a function of lepton pseudorapidity.","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.73441.v1/t13","@type":"Dataset","description":"Longitudinal double-spin asymmetry $A_{LL}$ for theory $W^{+/-}$ production as a function of lepton pseudorapidity.","name":"Table 13"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1292792?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/73441"}],"inLanguage":"en","name":"Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1292792?version=1","version":1}