{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.93879.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1819820"}},{"@id":"https://doi.org/10.1016/j.physletb.2021.136253","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2021","description":"The strong Coulomb field created in ultrarelativistic heavy ion collisions is expected to produce a rapidity-dependent difference ($\\Delta v_2$) in the second Fourier coefficient of the azimuthal distribution (elliptic flow, $v_2$) between $D^0$ ($\\overline{u}c$) and $\\overline{D}^0$ ($u\\overline{c}$) mesons. Motivated by the search for evidence of this field, the CMS detector at the LHC is used to perform the first measurement of $\\Delta v_2$. The rapidity-averaged value is found to be $<\\Delta v_2>=0.001\\pm0.001(stat)\\pm0.003(syst)$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$. In addition, the influence of the collision geometry is explored by measuring the $D^0$ and $\\overline{D}^0$ mesons $v_2$ and triangular flow coefficient ($v_3$) as functions of rapidity, transverse momentum ($p_T$), and event centrality (a measure of the overlap of the two Pb nuclei). A clear centrality dependence of prompt $D^0$ meson $v_2$ values is observed, while the $v_3$ is largely independent of centrality. These trends are consistent with expectations of flow driven by the initial-state geometry.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t1","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 2a"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t2","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 2b"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t3","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 2c"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t4","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 2d"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t5","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 2e"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t6","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 2f"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t7","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 3a"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t8","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 3b"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t9","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 3c"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t10","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 3d"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t11","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 3e"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t12","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of $p_T$ in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 3f"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t13","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of centrality in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 4a"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t14","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of centrality in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 4b"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t15","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of centrality in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 4c"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t16","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of centrality in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 4d"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t17","@type":"Dataset","description":"Prompt $D^0$ meson $v_2$ as a function of rapidity in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 4e"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t18","@type":"Dataset","description":"Prompt $D^0$ meson $v_3$ as a function of rapidity in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 4f"},{"@id":"https://doi.org/10.17182/hepdata.93879.v1/t19","@type":"Dataset","description":"Prompt $D^0$ meson $\\Delta v_2$ as a function of rapidity in PbPb collisions at $\\sqrt{s_{NN}}=5.02~TeV$.","name":"Figure 5"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1819820?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/93879"}],"inLanguage":"en","name":"Search for strong electric fields in PbPb collisions at $\\sqrt{s_\\mathrm{NN}} =$ 5.02 TeV using azimuthal anisotropy of prompt $\\mathrm{D}^0$ and $\\overline{\\mathrm{D}}^0$ mesons","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1819820?version=1","version":1}