{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.69868.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1376027"}},{"@id":"https://doi.org/10.1007/JHEP09(2015)170","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2015","description":"CERN-LHC.  We report the measurement of a new observable of jet quenching in central Pb-Pb collisions at $\\sqrt{s_{\\rm NN}} = 2.76$ TeV, based on the semi-inclusive rate of charged jets recoiling from a high transverse momentum (high-$p_{\\rm T}$) charged hadron trigger. Jets are measured using collinear-safe jet reconstruction with infrared cutoff for jet constituents of 0.15 GeV/$c$, for jet resolution parameters $R = 0.2$, 0.4 and 0.5. Underlying event background is corrected at the event-ensemble level, without imposing bias on the jet population. Recoil jet spectra are reported in the range $20 &lt; p_\\mathrm{T,jet}^\\mathrm{ch} &lt; 100$ GeV/$c$. Reference distributions for pp collisions at $\\sqrt{s} = 2.76$ TeV are calculated using Monte Carlo and NLO pQCD methods, which are validated by comparing with measurements in pp collisions at $\\sqrt{s} = 7$ TeV. The recoil jet yield in central Pb-Pb collisions is found to be suppressed relative to that in pp collisions. No significant medium-induced broadening of the intra-jet energy profile is observed within 0.5 radians relative to the recoil jet axis. The angular distribution of the recoil jet yield relative to the trigger axis is found to be similar in central Pb-Pb and pp collisions, with no significant medium-induced acoplanarity observed. Large-angle jet deflection, which may provide a direct probe of the nature of the quasi-particles in hot QCD matter, is explored.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t1","@type":"Dataset","description":"Raw per trigger normalized yields of charged jets in the recoil region associated to a trigger hadron with pT (8,9)...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t2","@type":"Dataset","description":"Raw per trigger normalized yields of charged jets in the recoil region associated to a trigger hadron with pT (20,50)...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t3","@type":"Dataset","description":"Per trigger normalized yields of charged jets in the recoil region associated to a trigger hadron with pT (8,9) GeV/c...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t4","@type":"Dataset","description":"Per trigger normalized yields of charged jets in the recoil region associated to a trigger hadron with pT (20,50) GeV/c...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t5","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {8,9} GeV. The recoil jet yield is measured...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t6","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {20,50} GeV. The recoil jet yield is measured...","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t7","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {8,9} GeV. The recoil jet yield is measured...","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t8","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {20,50} GeV. The recoil jet yield is measured...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t9","@type":"Dataset","description":"Raw ratio of the per trigger normalized recoil jet yield in hadron trigger bin of {20,50} relative to the same...","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t10","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {8,9} GeV. The recoil jet yield is measured...","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t11","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {20,50} GeV. The recoil jet yield is measured...","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t12","@type":"Dataset","description":"Raw ratio of the per trigger normalized recoil jet yield in hadron trigger bin of {20,50} relative to the same...","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t13","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of {20,50} GeV. The recoil jet yield is measured...","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t14","@type":"Dataset","description":"Per trigger normalized raw recoil jet yield in hadron trigger bin of [20,50] GeV. The recoil jet yield is measured...","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t15","@type":"Dataset","description":"Raw ratio of the per trigger normalized recoil jet yield in hadron trigger bin of {20,50} relative to the same...","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t16","@type":"Dataset","description":"Raw difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9}...","name":"Table 16"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t17","@type":"Dataset","description":"Raw difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9}...","name":"Table 17"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t18","@type":"Dataset","description":"Raw difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9}...","name":"Table 18"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t19","@type":"Dataset","description":"Raw difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9}...","name":"Table 19"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t20","@type":"Dataset","description":"Raw difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9}...","name":"Table 20"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t21","@type":"Dataset","description":"Raw difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9}...","name":"Table 21"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t22","@type":"Dataset","description":"Azimuthal correlation between a trigger hadron (TT[8,9]) and recoil jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60 GeV/$c$) in...","name":"Table 22"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t23","@type":"Dataset","description":"Azimuthal correlation between a trigger hadron (TT[20,50]) and recoil jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60 GeV/$c$) in...","name":"Table 23"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t24","@type":"Dataset","description":"Difference of azimuthal correlations between a trigger hadron (TT[20,50]-[8,9]) and recoil jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60...","name":"Table 24"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t25","@type":"Dataset","description":"Integrated yield for jets ($R$ = 0.4, 40 &lt; $p_{T,jet}}^{reco,ch}$ &lt; 60 GeV/$c$) recoiling from a trigger hadron (TT[8,9]) above...","name":"Table 25"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t26","@type":"Dataset","description":"Integrated yield for jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60 GeV/$c$) recoiling from a trigger hadron (TT[20,50]) above...","name":"Table 26"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t27","@type":"Dataset","description":"Difference of the integrated yield for jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60 GeV/$c$) recoiling from a trigger...","name":"Table 27"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t28","@type":"Dataset","description":"Difference of per trigger normalized yields of charged jets in the recoil region associated to a trigger hadron with pT...","name":"Table 28"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t29","@type":"Dataset","description":"Ratio of Delta_{recoil} distributions corresponding to recoil jets with R=0.2 and R=0.5.","name":"Table 29"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t30","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV....","name":"Table 30"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t31","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV....","name":"Table 31"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t32","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV...","name":"Table 32"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t33","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV...","name":"Table 33"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t34","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV...","name":"Table 34"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t35","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV...","name":"Table 35"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t36","@type":"Dataset","description":"Difference of the per trigger normalized recoil jet yield in two exclusive hadron trigger bins of {20,50} and {8,9} GeV...","name":"Table 36"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t37","@type":"Dataset","description":"Difference of azimuthal correlations between a trigger hadron (TT[20,50]-[8,9]) and recoil jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60...","name":"Table 37"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t38","@type":"Dataset","description":"Ratio of the difference of the integrated yield for jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60 GeV/$c$) recoiling...","name":"Table 38"},{"@id":"https://doi.org/10.17182/hepdata.69868.v1/t39","@type":"Dataset","description":"Ratio of the difference of the integrated yield for jets ($R$ = 0.4, 40 &lt; $p_{T,jet}^{reco,ch}$ &lt; 60 GeV/$c$) recoiling...","name":"Table 39"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1376027?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/69868"}],"inLanguage":"en","name":"Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb-Pb collisions at ${\\sqrt{\\bf{s}_{\\mathrm {\\bf{NN}}}}}$ = 2.76 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1376027?version=1","version":1}
