{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.158541.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2831271"}},{"@id":"https://doi.org/10.1103/PhysRevLett.135.031901","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2025","description":"The ALICE Collaboration reports measurements of the large relative transverse momentum ($k_{\\text{T}}$) component of jet substructure in pp and in central and semicentral Pb$-$Pb collisions at center-of-mass energy per nucleon pair $\\sqrt{s_{\\text{NN}}}=5.02$ TeV.  Enhancement in the yield of such large-$k_{\\text{T}}$ emissions in central Pb$-$Pb collisions is predicted to arise from partonic scattering with quasi-particles of the quark--gluon plasma.  The analysis utilizes charged-particle jets reconstructed by the anti-$k_{\\text{T}}$ algorithm with resolution parameter $R=0.2$ in the transverse-momentum interval $60 < p_{\\text{T,ch jet}} < 80$\\:$\\text{GeV}/c$.  The soft drop and dynamical grooming algorithms are used to identify high transverse momentum splittings in the jet shower.  Comparison of measurements in Pb$-$Pb and pp collisions shows medium-induced narrowing, corresponding to yield suppression of high-$k_{\\text{T}}$ splittings, in contrast to the expectation of yield enhancement due to quasi-particle scattering.  The measurements are compared to theoretical model calculations incorporating jet quenching, both with and without quasi-particle scattering effects.  These measurements provide new insight into the underlying mechanisms and theoretical modeling of jet quenching.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t1","@type":"Dataset","description":"Groomed relative transverse momentum, $k_{\\text{T,g}}$, spectra measured in pp collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Dynamical grooming $a =...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t2","@type":"Dataset","description":"Groomed relative transverse momentum, $k_{\\text{T,g}}$, spectra measured in 30--50% Pb-Pb collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Dynamical grooming $a...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t3","@type":"Dataset","description":"Groomed relative transverse momentum, $k_{\\text{T,g}}$, spectra measured in 0--10% Pb-Pb collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Dynamical grooming $a...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t4","@type":"Dataset","description":"Groomed relative transverse momentum, $k_{\\text{T,g}}$, spectra measured in pp collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Soft drop $z_{\\text{cut}} =...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t5","@type":"Dataset","description":"Groomed relative transverse momentum, $k_{\\text{T,g}}$, spectra measured in 30--50% Pb-Pb collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Soft drop $z_{\\text{cut}}...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t6","@type":"Dataset","description":"Groomed relative transverse momentum, $k_{\\text{T,g}}$, spectra measured in 0--10% Pb-Pb collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Soft drop $z_{\\text{cut}}...","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t7","@type":"Dataset","description":"Groomed $k_{\\text{T,g}}$ ratio of 30--50% Pb-Pb to pp collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Dynamical grooming $a = 1.0$...","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t8","@type":"Dataset","description":"Groomed $k_{\\text{T,g}}$ ratio of 0--10% Pb-Pb to pp collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Dynamical grooming $a = 1.0$...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t9","@type":"Dataset","description":"Groomed $k_{\\text{T,g}}$ ratio of 30--50% Pb-Pb to pp collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Soft drop $z_{\\text{cut}} = 0.2$,...","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.158541.v1/t10","@type":"Dataset","description":"Groomed $k_{\\text{T,g}}$ ratio of 0--10% Pb-Pb to pp collisions. $60 < p_{\\text{T,ch jet}}^{\\text{}} < 80\\:\\text{GeV}/c$, Soft drop $z_{\\text{cut}} = 0.2$,...","name":"Table 10"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2831271?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/158541"}],"inLanguage":"en","name":"Search for quasi-particle scattering in the quark-gluon plasma with jet splittings in pp and Pb$-$Pb collisions at $\\sqrt{s_{\\rm NN}}$ = 5.02 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2831271?version=1","version":1}