{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.153894.v2","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2694685"}},{"@id":"https://doi.org/10.1103/PhysRevLett.131.102301","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"LHCb Collaboration"},"creator":{"@type":"Organization","name":"LHCb Collaboration"},"datePublished":"2025","description":"The production of prompt $D^0$ mesons in proton-lead collisions in the forward and backward configurations at a center-of-mass energy per nucleon pair of $\\sqrt{s_\\mathrm{NN}} = 8.16~\\mathrm{TeV}$ is measured by the LHCb experiment. The nuclear modification factor of prompt $D^0$ mesons is determined as a function of the transverse momentum $p_\\mathrm{T}$, and rapidity in the nucleon-nucleon center-of-mass frame $y^*$. In the forward rapidity region, significantly suppressed production with respect to $pp$ collisions is measured, which provides significant constraints of nuclear parton distributions and hadron production down to the very low Bjorken-$x$ region of $\\sim 10^{-5}$. In the backward rapidity region, a suppression with a significance of 2.0 - 3.8 standard deviations compared to nPDF expectations is found in the kinematic region of $p_\\mathrm{T}>6~\\mathrm{GeV}/c$ and $-3.25<y^*<-2.5$, corresponding to $x\\sim 0.01$.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.153894.v2/t1","@type":"Dataset","description":"Double-differential cross-sections for prompt $D^0$ mesons in intervals of $p_\\mathrm{T}$ and $y^\\ast$ in forward rapidity regions.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.153894.v2/t2","@type":"Dataset","description":"Double-differential cross-sections for prompt $D^0$ mesons in intervals of $p_\\mathrm{T}$ and $y^\\ast$ in backward rapidity regions.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.153894.v2/t3","@type":"Dataset","description":"Nuclear modification factor $R_{p\\mathrm{Pb}}$ for prompt $D^0$ mesons in intervals of $p_\\mathrm{T}$ and $y^\\ast$ for $p_\\mathrm{T} &lt; 10\\,\\mathrm{GeV}/c$ in forward...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.153894.v2/t4","@type":"Dataset","description":"Nuclear modification factor $R_{p\\mathrm{Pb}}$ for prompt $D^0$ mesons in intervals of $p_\\mathrm{T}$ and $y^\\ast$ for $p_\\mathrm{T} &lt; 10\\,\\mathrm{GeV}/c$ in backward...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.153894.v2/t5","@type":"Dataset","description":"Forward-backward production ratio $R_\\mathrm{FB}$ for prompt $D^0$ mesons as a function of $p_\\mathrm{T}$, integrated over $2.5 &lt; |y^\\ast| &lt; 4.0$.","name":"Table 6"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2694685?version=2"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/153894"}],"inLanguage":"en","name":"Measurement of the prompt $D^0$ nuclear modification factor in $p$Pb collisions at $\\sqrt{s_\\mathrm{NN}} = 8.16$ TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2694685?version=2","version":2}