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Evidence of b-Jet Quenching in PbPb Collisions at $\sqrt{s_{NN}}=2.76$  TeV

The CMS collaboration
Phys.Rev.Lett. 113 (2014) 132301, 2014

Abstract (data abstract)
CERN-LHC. The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (pT) range of 80-250 GeV, and within pseudorapidity abs(eta) < 2. The nuclear modification factor (R[AA]) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of pT studied, and is centrality dependent. The R[AA] is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet pt range studied. The statistical errors submitted to HepData take into account an erratum presented in Phys.Rev.Lett. 115 (2015) 2, 029903.

  • Table 1

    Data from Figure 2

    10.17182/hepdata.68931.v1/t1

    The b-jet yield as a function of pT is for the 0-100% centrality class of PbPb collisions. The yields are...

  • Table 2

    Data from Figure 2

    10.17182/hepdata.68931.v1/t2

    The b-jet yield as a function of pT is for the 0-10% centrality class of PbPb collisions. The yields are...

  • Table 3

    Data from Figure 2

    10.17182/hepdata.68931.v1/t3

    The b-jet yield as a function of pT is for the 10-30% centrality class of PbPb collisions. The yields are...

  • Table 4

    Data from Figure 2

    10.17182/hepdata.68931.v1/t4

    The b-jet yield as a function of pT is for the 30-50% centrality class of PbPb collisions. The yields are...

  • Table 5

    Data from Figure 2

    10.17182/hepdata.68931.v1/t5

    The b-jet yield as a function of pT is for the 50-100% centrality class of PbPb collisions. The yields are...

  • Table 6

    Data from Figure 2

    10.17182/hepdata.68931.v1/t6

    The b-jet cross section as a function of pT in pp collisions.

  • Table 7

    Data from Figure 3

    10.17182/hepdata.68931.v1/t7

    The b-jet nuclear modification factor as a function of the pT for the centrality class 0-100%.

  • Table 8

    Data from Figure 4

    10.17182/hepdata.68931.v1/t8

    The b-jet nuclear modification factor as a function of centrality for 80 < jet pT < 90 GeV/c.

  • Table 9

    Data from Figure 4

    10.17182/hepdata.68931.v1/t9

    The b-jet nuclear modification factor as a function centrality for 80 < jet pT < 90 GeV/c.

  • Table 10

    Data from Additional data

    10.17182/hepdata.68931.v1/t10

    The b-jet nuclear modification factor as a function of the pT for the centrality class 0-10%.

  • Table 11

    Data from Additional data

    10.17182/hepdata.68931.v1/t11

    The b-jet nuclear modification factor as a function of the pT for the centrality class 10-30%.

  • Table 12

    Data from Additional data

    10.17182/hepdata.68931.v1/t12

    The b-jet nuclear modification factor as a function of the pT for the centrality class 30-50%.

  • Table 13

    Data from Additional data

    10.17182/hepdata.68931.v1/t13

    The b-jet nuclear modification factor as a function of the pT for the centrality class 50-100%.

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