{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.169069.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/3094371"}},{"@id":"https://doi.org/10.1103/fdrg-gw3s","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"FNAL E906/SeaQuest Collaboration"},"creator":{"@type":"Organization","name":"FNAL E906/SeaQuest Collaboration"},"datePublished":"2026","description":"The Fermilab E906/SeaQuest collaboration performed measurements of the Drell-Yan process using 120 GeV proton beams bombarding liquid hydrogen and liquid deuterium targets. A combined analysis of all collected data was performed to obtain the final results for the $\u03c3_{pd}/2\u03c3_{pp}$ Drell-Yan cross section ratio covering the kinematic region of $0.13 < x < 0.45$. The $x$-dependencies of $\\bar{d}\\left(x\\right) / \\bar{u}\\left(x\\right)$ and $\\bar{d}\\left(x\\right) - \\bar{u}\\left(x\\right)$ are extracted from these cross section ratios. It is found that $\\bar{d}\\left(x\\right)$ is greater than $\\bar{u}\\left(x\\right)$ over the entire measured $x$ range, with improved statistical accuracy compared to previous measurements. The new results on $\\bar{d}\\left(x\\right) / \\bar{u}\\left(x\\right)$ and $\\bar{d}\\left(x\\right) - \\bar{u}\\left(x\\right)$ are compared to various parton distribution functions and theoretical calculations.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.169069.v1/t1","@type":"Dataset","description":"The measured $\\sigma_{pd}/2\\sigma_{pp}$ cross section ratio as well as the extracted $\\bar{d}/\\bar{u}$ and $\\bar{d}-\\bar{u}$ for each $x_{2}$ bin.","name":"table 1"},{"@id":"https://doi.org/10.17182/hepdata.169069.v1/t2","@type":"Dataset","description":"The measured $\\sigma_{pd}/2\\sigma_{pp}$ cross section ratio as functions of $x_1$","name":"table 3 x1"},{"@id":"https://doi.org/10.17182/hepdata.169069.v1/t3","@type":"Dataset","description":"The measured $\\sigma_{pd}/2\\sigma_{pp}$ cross section ratio as functions of $x_F$","name":"table 3 xF"},{"@id":"https://doi.org/10.17182/hepdata.169069.v1/t4","@type":"Dataset","description":"The acceptance of the spectrometer for different $x_1$ and $x_2$ bins.","name":"table 4"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins3094371?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/169069"}],"inLanguage":"en","name":"Final SeaQuest results on the flavor asymmetry of the proton light-quark sea with proton-induced Drell-Yan process","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins3094371?version=1","version":1}