{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.69240.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1386475"}},{"@id":"https://doi.org/10.1140/epjc/s10052-016-4002-3","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2015","description":"CERN-LHC. The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 $\\mu$b$^{-1}$ of proton-lead collisions at a nucleon-nucleon centre-of-mass energy of $\\sqrt{s_{_{\\text{NN}}}}=5.02$ TeV using the ATLAS detector at the Large Hadron Collider. Charged particles with absolute pseudorapidity less than 2.7 are reconstructed using the ATLAS pixel detector. The $p$+Pb collision centrality is characterised by the total transverse energy measured in the Pb-going direction of the forward calorimeter. %over the pseudorapidity interval $-4.9 <\\eta <-3.1$. The charged-particle pseudorapidity distributions are found to vary strongly with centrality, with an increasing asymmetry between the proton-going and Pb-going directions as the collisions become more central. Three different estimations of the number of nucleons participating in the $p$+Pb collision have been carried out using the Glauber model as well as two Glauber-Gribov inspired extensions to the Glauber model. Charged-particle multiplicities per participant pair are found to vary differently for these three models, highlighting the importance of including colour fluctuations in nucleon-nucleon collisions in the modelling of the initial state of $p$+Pb collisions.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.69240.v1/t1","@type":"Dataset","description":"The $\\langle N_{\\mathrm{part}} \\rangle$ values and their uncertainties for centrality intervals used in this analysis together with asymmetric systematic uncertainties...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.69240.v1/t2","@type":"Dataset","description":"Centrality dependence of the charged particle pseudorapidity distribution measured in several centrality intervals for charged particles with $p_{T} > 0.1$...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.69240.v1/t3","@type":"Dataset","description":"Centrality dependence of the charged particle pseudorapidity distribution measured in several centrality intervals for charged particles with $p_{T} > 0$...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.69240.v1/t4","@type":"Dataset","description":"Ratios of $dN_{ch}/d\\eta$ distributions measured in different centrality intervals to that in the peripheral (60\u00e2\u20ac\u201c90%) centrality interval. The first uncertainty...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.69240.v1/t5","@type":"Dataset","description":"Charged-particle pseudorapidity distribution $dN_{ch}/d\\eta$ as a function of centrality (related to the $\\langle N_{\\mathrm{part}} \\rangle$ by Table 3) for several...","name":"Table 5"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1386475?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/69240"}],"inLanguage":"en","name":"Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton--lead collisions at $\\sqrt{s_{_{\\rm{NN}}}} = 5.02$ TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1386475?version=1","version":1}