{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.77544.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1499471"}},{"@id":"https://doi.org/10.1140/epjc/s10052-017-5140-y","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2018","description":"CERN-LHC.  Measurements of the associated production of a Z boson with at least one jet originating from a b quark in proton-proton collisions at s= 8 TeV are presented. Differential cross sections are measured with data collected by the CMS experiment corresponding to an integrated luminosity of 19.8 fb**1. Z bosons are reconstructed through their decays to electrons and muons. Cross sections are measured as a function of observables characterizing the kinematics of the b jet and the Z boson. Ratios of differential cross sections for the associated production with at least one b jet to the associated production with any jet are also presented. The production of a Z boson with two b jets is investigated, and differential cross sections are measured for the dijet system. Results are compared to theoretical predictions, testing two different flavour schemes for the choice of initial-state partons.\n\nThe fiducial region is defined as:\n- 2e or 2mu\n- ptLepton > 20 GeV\n- |etaLepton| < 2.4\n- mll must be between 71 and 111 GeV\n- at least one jet anti-kt(DR=0.5) with ptJet > 30 GeV and |etaJet| < 2.4\n- DeltaR(l,jet) > 0.5\n- for Z+>=1b (indicated as Z(1b)): at least one selected jet b-tagged; for Z+>=2b (indicated as Z(2b)): at least two selected jets b-tagged","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t1","@type":"Dataset","description":"Differential fiducial cross section for Z(1b) production as a function of the leading b jet pT","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t2","@type":"Dataset","description":"Cross section ratio for Z(1b) and Z+jets production as a function of the leading b/inclusive (j) jet pT","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t3","@type":"Dataset","description":"Differential fiducial cross section for Z(1b) production as a function of the leading b jet |eta|","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t4","@type":"Dataset","description":"cross section ratio for Z(1b) and Z+jets production as a function of the leading b/inclusive (j) jet |eta|","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t5","@type":"Dataset","description":"Differential fiducial cross section for Z(1b) production as a function of the Z boson pT","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t6","@type":"Dataset","description":"cross section ratio for Z(1b) and Z+jets production as a function of the Z boson pT","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t7","@type":"Dataset","description":"Differential fiducial cross section for Z(1b) production as a function of HT","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t8","@type":"Dataset","description":"cross section ratio for Z(1b) and Z+jets production as a function of HT","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t9","@type":"Dataset","description":"Differential fiducial cross section for Z(1b) production as a function of DeltaPhi(Zb)","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t10","@type":"Dataset","description":"cross section ratio for Z(1b) and Z+jets production as a function of DeltaPhi(Zb)","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t11","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of the leading b jet pT","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t12","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of the subleading b jet pT","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t13","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of the Z boson pT","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t14","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of the invari- ant mass of the b jet pair,...","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t15","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of the invari- ant mass of the Zbb system, MZbb","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t16","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of DeltaPhi(bb)","name":"Table 16"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t17","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of DeltaR(bb)","name":"Table 17"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t18","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of minimum DeltaR(Zb)","name":"Table 18"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t19","@type":"Dataset","description":"Differential fiducial cross section for Z(2b) production as a function of AZbb","name":"Table 19"},{"@id":"https://doi.org/10.17182/hepdata.77544.v1/t20","@type":"Dataset","description":"fiducial cross section, for a single lepton type, for the production of Z(1b) and Z(2b) events","name":"Table 20"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1499471?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/77544"}],"inLanguage":"en","name":"Measurements of the associated production of a Z boson and b jets in pp collisions at sqrt(s) = 8 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1499471?version=1","version":1}