{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.89877.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2074094"}},{"@id":"https://doi.org/10.1016/j.physletb.2023.137905","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2022","description":"The first measurements of the Fourier coefficients ($V_{n\\Delta}$) of the azimuthal distributions of charged hadrons emitted from photon-proton ($\\gamma$p) interactions at the LHC are presented. The data are extracted from 68.8 nb$^{-1}$ of ultra-peripheral proton-lead (pPb) collisions at $\\sqrt{s_\\mathrm{NN}}$ = 8.16 TeV using the CMS detector. The high energy lead ions produce a flux of photons that can interact with the oncoming proton. This $\\gamma$p system provides a set of unique initial conditions with multiplicity lower than in photon-lead collisions but comparable to recent electron-positron and electron-proton data. The $V_{n\\Delta}$ coefficients are presented in ranges of event multiplicity and transverse momentum ($p_\\mathrm{T}$) and are compared to corresponding hadronic minimum bias pPb results. For a given multiplicity range, the mean $p_\\mathrm{T}$ of charged particles is smaller in $\\gamma$p than in pPb collisions. For both the $\\gamma$p and pPb samples, $V_{1\\Delta}$ is negative, $V_{2\\Delta}$ is positive, and $V_{3\\Delta}$ consistent with 0. For each multiplicity and $p_\\mathrm{T}$ range, $V_{2\\Delta}$ is larger for $\\gamma$p events. The $\\gamma$p data are consistent with model predictions that have no collective effects.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t1","@type":"Dataset","description":"$V_{n\\Delta}$ coefficients for $\\gamma$p events as a function of N$_{\\text{trk}}$ for $ 0.3 < p_\\mathrm{T} < 3.0 GeV$ in pPb...","name":"Figure 3 left ($\\gamma$p)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t2","@type":"Dataset","description":"$V_{n\\Delta}$ coefficients for minimum bias events as a function of N$_{\\text{trk}}$ for $ 0.3 < p_\\mathrm{T} < 3.0 GeV$ in...","name":"Figure 3 left (MB pPb)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t3","@type":"Dataset","description":"$V_{n\\Delta}$ coefficients for $\\gamma$p events as a function of N$_{\\text{trk}}$ for $ 1.0 < p_\\mathrm{T} < 3.0 GeV$ in pPb...","name":"Figure 3 right ($\\gamma$p)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t4","@type":"Dataset","description":"$V_{n\\Delta}$ coefficients for minimum bias events as a function of N$_{\\text{trk}}$ for $ 1.0 < p_\\mathrm{T} < 3.0 GeV$ in...","name":"Figure 3 right (MB pPb)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t5","@type":"Dataset","description":"Single-particle azimuthal anisotropy $v_2$ for $\\gamma$p events as a function of N$_{\\text{trk}}$ for $0.3 < p_\\mathrm{T} < 3.0 GeV$ in...","name":"Figure 4 left ($\\gamma$p)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t6","@type":"Dataset","description":"Single-particle azimuthal anisotropy $v_2$ for minimum bias events as a function of N$_{\\text{trk}}$ for $0.3 < p_\\mathrm{T} < 3.0 GeV$...","name":"Figure 4 left (MB pPb)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t7","@type":"Dataset","description":"Single-particle azimuthal anisotropy $v_2$ for $\\gamma$p events as a function of N$_{\\text{trk}}$ for $1.0 < p_\\mathrm{T} < 3.0 GeV$ in...","name":"Figure 4 right ($\\gamma$p)"},{"@id":"https://doi.org/10.17182/hepdata.89877.v1/t8","@type":"Dataset","description":"Single-particle azimuthal anisotropy $v_2$ for minimum bias events as a function of N$_{\\text{trk}}$ for $1.0 < p_\\mathrm{T} < 3.0 GeV$...","name":"Figure 4 right (MB pPb)"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2074094?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/89877"}],"inLanguage":"en","name":"Two-particle azimuthal correlations in $\\gamma$p interactions using pPb 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/ins2074094?version=1","version":1}