{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.159893.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2922449"}},{"@id":"https://doi.org/10.1016/j.physletb.2025.139854","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"LHCb Collaboration"},"creator":{"@type":"Organization","name":"LHCb Collaboration"},"datePublished":"2025","description":"The LHCb collaboration presents a novel suite of heavy-flavour jet substructure measurements at forward rapidity in proton-proton collisions at a centre-of-mass energy of $\\sqrt{s} = 13$ TeV. The jet mass is a perturbatively calculable probe of the virtuality of hard-scattered quarks and gluons, connecting small-distance quantum chromodynamics (QCD) with long-distance experimental measurement. It becomes dominated by nonperturbative corrections at small values, presenting an excellent test of QCD across a broad range of energies. Measuring heavy-flavour jet mass with a theoretically unambiguous flavour definition for the first time probes the gluon splitting mechanism for heavy-flavour production and pushes tests of perturbative QCD to unprecedented theoretical precision. Utilising the soft drop jet-grooming technique to access the perturbative jet core further enhances constraints on first-principles theory. Measurements of the jet mass for jets containing fully reconstructed $B^\\pm$ hadrons are reported with and without grooming. These results offer unparalleled tests of quark flavour and mass dependence in QCD and provide a baseline for future studies of heavy-flavour jet quenching in heavy-ion collisions.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t1","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 0"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t2","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t3","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t4","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t5","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t6","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t7","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t8","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t9","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t10","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t11","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t12","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t13","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t14","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t15","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t16","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t17","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 16"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t18","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data, without any WTA flavour requirement. Normalization is...","name":"Table 17"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t19","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 18"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t20","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 19"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t21","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 20"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t22","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 21"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t23","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 22"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t24","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 23"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t25","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 24"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t26","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 25"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t27","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 26"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t28","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 27"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t29","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 28"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t30","@type":"Dataset","description":"Groomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet,gr}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 29"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t31","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 30"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t32","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 31"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t33","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 32"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t34","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 33"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t35","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 34"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t36","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 35"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t37","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 36"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t38","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 37"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t39","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 38"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t40","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 39"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t41","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 40"},{"@id":"https://doi.org/10.17182/hepdata.159893.v1/t42","@type":"Dataset","description":"Ungroomed $B^\\pm$-tagged jet invariant mass $m_{\\textrm{jet}}/p_{\\textrm{T,jet}}$ for $R=0.5$ jets reconstructed in pp data tagged with WTA flavour. Normalization is set...","name":"Table 41"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2922449?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/159893"}],"inLanguage":"en","name":"First measurement of $b$-jet mass with and without grooming","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2922449?version=1","version":1}