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Centrality dependence of charm production from single electrons measurement in Au + Au collisions at s(NN)**(1/2) = 200-GeV

The PHENIX collaboration
Phys.Rev.Lett. 94 (2005) 082301, 2005

Abstract (data abstract)
Measurement of the centrality dependance of the open charm production, from single electrons measurement, at the PHENIX experience, in Au+Au collisons at center-of-mass energy of200 GeV. The transverse momentum spectra (0.4<PT<4.0 GeV/c) of single electrons are presented, as a function of centrality The measurements are made at mid-rapidity (-0.35<y<0.35). The contribution to the raw specra from photon conversions and Dalitz decays are measured with a thin converter, which multiplies the photonic contribution by acertain factor. The photonic contribution can therefore be estimated and statistically removed.After that, the great majority of electrons forming the invariant mass spectra are supposed to come from heavy flavor decays The bottom production, even if included in the calculations, is considered to have almost no influence on the data, in the range of PT observed in this paper. The minimum bias trigger used in this study corresponds to (92.2 +2.5,-3.0)% of the 6.8 +- 0.5 barn Au+Au inelastic cross section.

  • Table 1

    Data from P4

    10.17182/hepdata.57254.v1/t1

    Value of the Alpha power as used in a fit of dN/dy versus Ncoll of the form A*Ncoll^Alpha, where N...

  • Table 2

    Data from P4

    10.17182/hepdata.57254.v1/t2

    Value of the Alpha power as used in a fit of dN/dy versus Ncoll, of the form A*Ncoll^Alpha, where N...

  • Table 3

    Data from F2 P5

    10.17182/hepdata.57254.v1/t3

    Spectrum in transverse momentum of electrons created in open heavy flavor decays, for minimum bias events.

  • Table 4

    Data from F2 P5

    10.17182/hepdata.57254.v1/t4

    Spectrum in transverse momentum of electrons created in open heavy flavor decays, for 0-10% centrality.

  • Table 5

    Data from F2 P5

    10.17182/hepdata.57254.v1/t5

    Spectrum in transverse momentum of electrons created in open heavy flavor decays, for 10-20% centrality.

  • Table 6

    Data from F2 P5

    10.17182/hepdata.57254.v1/t6

    Spectrum in transverse momentum of electrons created in open heavy flavor decays, for 20-40% centrality.

  • Table 7

    Data from F2 P5

    10.17182/hepdata.57254.v1/t7

    Spectrum in transverse momentum of electrons created in open heavy flavor decays, for 40-60% centrality.

  • Table 8

    Data from F2 P5

    10.17182/hepdata.57254.v1/t8

    Spectra in transverse momentum of electrons created in open heavy flavor decays, for 60-92% centrality.

  • Table 9

    Data from F3 P5

    10.17182/hepdata.57254.v1/t9

    Non photonic electrons differential yield scaled by the number of collisions, as a function of centrality. PT belongs to 0.8-4.0...

  • Table 10

    Data from F3 P5

    10.17182/hepdata.57254.v1/t10

    Non photonic electrons differential yield scaled by the number of collisions, for minimum bias collisions. PT belongs to 0.8-4.0 GeV/c.

  • Table 11

    Data from T1 P5

    10.17182/hepdata.57254.v1/t11

    Number of collisions as a fonction of centrality There are only systematic errors due to the calculation of Ncoll.

  • Table 12

    Data from T1 P5

    10.17182/hepdata.57254.v1/t12

    Number of collisions for minimum bias events There are only systematic errors due to the calculation of Ncoll.

  • Table 13

    Data from T1 P5

    10.17182/hepdata.57254.v1/t13

    Nuclear overlap function TAA as a function of centrality The axis is labelled with 1/SIG, because the unit of the...

  • Table 14

    Data from T1 P5

    10.17182/hepdata.57254.v1/t14

    Nuclear overlap function TAA for minimum bias events The axis is labelled with 1/SIG, as the unit of the nuclear...

  • Table 15

    Data from T1 P5

    10.17182/hepdata.57254.v1/t15

    Differential charm cross section scaled by the number of collisions, at mid rapidity, as a function of centrality The differential...

  • Table 16

    Data from T1 P5

    10.17182/hepdata.57254.v1/t16

    Differential charm cross section scaled by the number of collisions, at mid rapidity, for minimum bias events The differential cross...

  • Table 17

    Data from T1 P5

    10.17182/hepdata.57254.v1/t17

    Total charm cross section scaled by the number of collisions, as a function of centrality The total cross section per...

  • Table 18

    Data from T1 P5

    10.17182/hepdata.57254.v1/t18

    Total charm cross section scaled by the number of collisions, for minimum bias events The total cross section per number...

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