{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.77581.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1481225"}},{"@id":"https://doi.org/10.1103/PhysRevLett.118.012301","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2017","description":"We present the first measurement of charge-dependent directed flow in Cu+Au collisions at $\\sqrt{s_{_{NN}}}$ = 200 GeV. The results are presented as a function of the particle transverse momentum and pseudorapidity for different centralities. A finite difference between the directed flow of positive and negative charged particles is observed that qualitatively agrees with the expectations from the effects of the initial strong electric field between two colliding ions with different nuclear charges. The measured difference in directed flow is much smaller than that obtained from the parton-hadron-string-dynamics (PHSD) model, which suggests that most of the electric charges, i.e. quarks and antiquarks, have not yet been created during the lifetime of the strong electric field, which is of the order of, or less than, 1fm/$c$.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t1","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 10-20%.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t2","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 20-30%.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t3","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 30-40%.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t4","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 40-50%.","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t5","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 50-60%.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t6","@type":"Dataset","description":"$p_{\\rm T}$ dependence of Delta v1 in centrality 10-20%.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t7","@type":"Dataset","description":"$p_{\\rm T}$ dependence of Delta v1 in centrality 20-30%.","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t8","@type":"Dataset","description":"$p_{\\rm T}$ dependence of Delta v1 in centrality 30-40%.","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t9","@type":"Dataset","description":"$p_{\\rm T}$ dependence of Delta v1 in centrality 40-50%.","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t10","@type":"Dataset","description":"$p_{\\rm T}$ dependence of Delta v1 in centrality 50-60%.","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t11","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 10-40%.","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t12","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 10-40%.","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t13","@type":"Dataset","description":"$p_{\\rm T}$ dependence of Delat v1 in centrality 10-40%.","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t14","@type":"Dataset","description":"$p_{\\rm T}$ dependence of directed flow in centrality 10-40%.","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t15","@type":"Dataset","description":"eta dependence of directed flow in centrality 10-40%.","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.77581.v1/t16","@type":"Dataset","description":"eta dependence of Delta v1 in centrality 10-40%.","name":"Table 16"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1481225?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/77581"}],"inLanguage":"en","name":"Charge-dependent directed flow in Cu+Au collisions at $\\sqrt{s_{_{NN}}}$ = 200 GeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1481225?version=1","version":1}