{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.156758.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2950741"}},{"@id":"https://doi.org/10.1007/JHEP05(2026)176","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2025","description":"We present a measurement of the angular structure of jets containing a prompt D$^0$ meson and of inclusive jets in proton-proton (pp) collisions at the LHC at a center-of-mass energy of 5.02 TeV. The measurement uses collision data collected by the CMS experiment in 2017, corresponding to an integrated luminosity of 301 pb$^{-1}$. Two jet grooming algorithms, late-$k_\\mathrm{T}$ and soft drop, are used to study the intrajet radiation pattern of these jets using iterative Cambridge--Aachen declustering. The splitting-angle distributions obtained with these two algorithms show that there is a shift of the distribution for jets containing a prompt D$^0$ meson with respect to inclusive jets for jet transverse momentum of $100< p_\\mathrm{T}^\\text{jet}<120$ GeV. The shift observed in the late-$k_\\mathrm{T}$ grooming approach is consistent with the dead-cone effect, whereas the shift for splittings selected with the soft-drop algorithm appears to be dominated by gluon splitting to charm quark-antiquark pairs. The measured distributions are corrected to the particle level and can be used to provide constraints on the substructure of high-$p_\\mathrm{T}$ charm quark jets.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.156758.v1/t1","@type":"Dataset","description":"The unfolded late-$k_{T}$ angular distribution for prompt $D^{0}$ jets.","name":"Figure 4a"},{"@id":"https://doi.org/10.17182/hepdata.156758.v1/t2","@type":"Dataset","description":"The unfolded late-$k_{T}$ angular distribution for inclusive jets.","name":"Figure 4b"},{"@id":"https://doi.org/10.17182/hepdata.156758.v1/t3","@type":"Dataset","description":"The unfolded SD angular distribution for prompt $D^{0}$ jets.","name":"Figure 5a"},{"@id":"https://doi.org/10.17182/hepdata.156758.v1/t4","@type":"Dataset","description":"The unfolded SD angular distribution for inclusive jets.","name":"Figure 5b"},{"@id":"https://doi.org/10.17182/hepdata.156758.v1/t5","@type":"Dataset","description":"The ratio of late-$k_{T}$ angular distribution for prompt $D^{0}$ jets to inclusive jets","name":"Figure 7a"},{"@id":"https://doi.org/10.17182/hepdata.156758.v1/t6","@type":"Dataset","description":"The ratio of SD angular distribution for prompt $D^{0}$ jets to inclusive jets","name":"Figure 7b"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2950741?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/156758"}],"inLanguage":"en","name":"Exploring small-angle emissions in charm quark jets in proton-proton collisions at $\\sqrt{s}$ = 5.02 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2950741?version=1","version":1}