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Jet shapes of isolated photon-tagged jets in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV

The CMS collaboration
Phys.Rev.Lett., 2018

Abstract
We report the first measurement of jet shapes for jets tagged with an isolated photon in pp and heavy-ion collisions. Jet shapes give crucial information on the evolution of parton shower in the plane transverse to parton's propagation. Photons constrain the associated parton's flavor and, not interacting with the QCD matter, provide precise information about the parton's momentum before traversing the medium. With this experimental control, available only with samples delivered by the LHC, jet shapes are observed to be strongly modified in the hot QCD medium, the results impose unprecedented constraints on theories for parton-medium interactions.

  • Table 1

    Data from top panel of Fig. 1

    10.17182/hepdata.85627.v1/t1

    The differential jet shape, $\rho(r)$, for jets associated with an isolated photon in pp collisions.

  • Table 2

    Data from top panel of Fig. 1

    10.17182/hepdata.85627.v1/t2

    The differential jet shape, $\rho(r)$, for jets associated with an isolated photon in 50-100% centrality PbPb collisions.

  • Table 3

    Data from top panel of Fig. 1

    10.17182/hepdata.85627.v1/t3

    The differential jet shape, $\rho(r)$, for jets associated with an isolated photon in 30-50% centrality PbPb collisions.

  • Table 4

    Data from top panel of Fig. 1

    10.17182/hepdata.85627.v1/t4

    The differential jet shape, $\rho(r)$, for jets associated with an isolated photon in 10-30% centrality PbPb collisions.

  • Table 5

    Data from top panel of Fig. 1

    10.17182/hepdata.85627.v1/t5

    The differential jet shape, $\rho(r)$, for jets associated with an isolated photon in 0-10% centrality PbPb collisions.

  • Table 6

    Data from bottom panel of Fig. 1

    10.17182/hepdata.85627.v1/t6

    PbPb / pp ratio of $\rho(r)$ for 50-100% centrality PbPb collisions.

  • Table 7

    Data from bottom panel of Fig. 1

    10.17182/hepdata.85627.v1/t7

    PbPb / pp ratio of $\rho(r)$ for 30-50% centrality PbPb collisions.

  • Table 8

    Data from bottom panel of Fig. 1

    10.17182/hepdata.85627.v1/t8

    PbPb / pp ratio of $\rho(r)$ for 10-30% centrality PbPb collisions.

  • Table 9

    Data from bottom panel of Fig. 1

    10.17182/hepdata.85627.v1/t9

    PbPb / pp ratio of $\rho(r)$ for 0-10% centrality PbPb collisions.

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