{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.165429.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2972386"}},{"@id":"https://doi.org/10.1007/JHEP03(2026)148","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"LHCb Collaboration"},"creator":{"@type":"Organization","name":"LHCb Collaboration"},"datePublished":"2025","description":"The $pp \\to W^{\\pm}(\\to \\mu^{\\pm}\\nu_{\\mu})X$ cross-sections are measured at a\nproton-proton centre-of-mass energy $\\sqrt{s} = 5.02$ TeV using a dataset\ncorresponding to an integrated luminosity of $100\\,\\mathrm{pb}^{-1}$ recorded\nby the LHCb experiment.\n\nConsidering muons in the pseudorapidity range $2.2 < \\eta < 4.4$, the\ncross-sections are measured differentially in twelve intervals of muon\ntransverse momentum between $28 < p_{T} < 52$ GeV. Integrated over $p_{T}$,\nthe measured cross-sections are\n\n$$\n  \\sigma(W^+ \\to \\mu^+\\nu_{\\mu}) = 300.9 \\pm 2.4 \\,(\\mathrm{stat})\n  \\pm 3.8 \\,(\\mathrm{syst}) \\pm 6.0 \\,(\\mathrm{lumi})\\,\\mathrm{pb},\n$$\n\n$$\n  \\sigma(W^- \\to \\mu^-\\nu_{\\mu}) = 236.9 \\pm 2.1 \\,(\\mathrm{stat})\n  \\pm 2.7 \\,(\\mathrm{syst}) \\pm 4.7 \\,(\\mathrm{lumi})\\,\\mathrm{pb}.\n$$\n\nThese integrated results are consistent with theoretical predictions.\nThis analysis introduces a new method to determine the $W$ boson mass using the\nmeasured differential cross-sections corrected for detector effects. The\nmeasurement is performed on this statistically limited dataset as a proof of\nprinciple and yields\n\n$$\n  m_W = 80369 \\pm 130 \\,(\\mathrm{exp}) \\pm 33 \\,(\\mathrm{theo})\\,\\mathrm{MeV}.\n$$","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.165429.v1/t1","@type":"Dataset","description":"The measured differential cross sections ($d\\sigma/dp_T$) for $W^+$. The first systematic uncertainty is statistical and the second is systematic.","name":"$W^+ \\to \\mu^+ \\nu_{\\mu}$ $d\\sigma/dp_T$"},{"@id":"https://doi.org/10.17182/hepdata.165429.v1/t2","@type":"Dataset","description":"The measured differential cross sections ($d\\sigma/dp_T$) for $W^-$. The first systematic uncertainty is statistical and the second is systematic.","name":"$W^- \\to \\mu^- \\nu_{\\mu}$ $d\\sigma/dp_T$"},{"@id":"https://doi.org/10.17182/hepdata.165429.v1/t3","@type":"Dataset","description":"The correlation matrix corresponding to the statistical uncertainties on the differential cross-section ($d\\sigma/dp_T$) fit results for $W^+$. To combine with...","name":"Statistical correlation matrix for $W^+$"},{"@id":"https://doi.org/10.17182/hepdata.165429.v1/t4","@type":"Dataset","description":"The correlation matrix corresponding to the statistical uncertainties on the differential cross-section ($d\\sigma/dp_T$) fit results for $W^-$. To combine with...","name":"Statistical correlation matrix for $W^-$"},{"@id":"https://doi.org/10.17182/hepdata.165429.v1/t5","@type":"Dataset","description":"The correlation matrix corresponding to all of the systematic uncertainties on the differential cross-section ($d\\sigma/dp_T$) fit results for $W^+$ and...","name":"Systematic correlation matrix for $W^{\\pm}$ (combined)"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2972386?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/165429"}],"inLanguage":"en","name":"Measurement of the $W \\to \u03bc\u03bd_\u03bc$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2972386?version=1","version":1}