Medium-induced modification of groomed and ungroomed jet mass and angularities in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV
- Acharya, Shreyasi et al
- arXiv:2411.03106CERN-EP-2024-283
| ALICE measurements of ungroomed \mjet{} (left) and groomed \mjetsd (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of \PbPb{} distributions to \pp{}, which quantifies the substructure modifications from quenching. |
| ALICE measurements of ungroomed \mjet{} (left) and groomed \mjetsd (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of \PbPb{} distributions to \pp{}, which quantifies the substructure modifications from quenching. |
| ALICE measurements of ungroomed \ang{} for $\alpha=1$ (`girth,' left), $\alpha=2$ (`thrust,' center), and $\alpha=3$ (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of \PbPb{} distributions to \pp{}, which quantifies the substructure modifications from quenching. |
| ALICE measurements of ungroomed \ang{} for $\alpha=1$ (`girth,' left), $\alpha=2$ (`thrust,' center), and $\alpha=3$ (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of \PbPb{} distributions to \pp{}, which quantifies the substructure modifications from quenching. |
| ALICE measurements of ungroomed \ang{} for $\alpha=1$ (`girth,' left), $\alpha=2$ (`thrust,' center), and $\alpha=3$ (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of \PbPb{} distributions to \pp{}, which quantifies the substructure modifications from quenching. |
| ALICE measurements of groomed \angsd{} for $\alpha=1$ (`girth,' left), $\alpha=2$ (`thrust,' center), and $\alpha=3$ (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of Pb–Pb distributions to pp, which quantifies the substructure modifications from quenching. These ratios are visibly enhanced as compared to the ungroomed distributions shown in Fig.~\ref{fig:ungroomed_jet_ang}, signifying a strongly quenched jet core. |
| ALICE measurements of groomed \angsd{} for $\alpha=1$ (`girth,' left), $\alpha=2$ (`thrust,' center), and $\alpha=3$ (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of Pb–Pb distributions to pp, which quantifies the substructure modifications from quenching. These ratios are visibly enhanced as compared to the ungroomed distributions shown in Fig.~\ref{fig:ungroomed_jet_ang}, signifying a strongly quenched jet core. |
| ALICE measurements of groomed \angsd{} for $\alpha=1$ (`girth,' left), $\alpha=2$ (`thrust,' center), and $\alpha=3$ (right) using $R=0.2$ charged-particle jets with $40 < \pTchjet{} < 60$ \GeVc{} in \pp{} and \PbPb{} collisions at $\snn{} = 5.02$ \TeV{} compared to models. The bottom panel shows the ratio of Pb–Pb distributions to pp, which quantifies the substructure modifications from quenching. These ratios are visibly enhanced as compared to the ungroomed distributions shown in Fig.~\ref{fig:ungroomed_jet_ang}, signifying a strongly quenched jet core. |