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Nuclear modification of electron spectra and implications for heavy quark energy loss in Au+Au collisions at s(NN)**(1/2) - 200-GeV

The PHENIX collaboration
Phys.Rev.Lett. 96 (2006) 032301, 2006

Abstract (data abstract)
Measurement by the PHENIX experiment of the transverse momentum spectra (0.4<PT<5.0 GeV/c) of electrons as a function of centrality, in Au+Au collisons at center-of-mass energy of200 GeV. The resultant nuclear modification factor as a fonction of centrality is presented 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 removed with a "cocktail" substraction, where sources of electrons other than heavy flavordecay are calculatied from monte carlo simulation. After this subtraction, the remaining, non photonic, electrons are primarily due to the semi leptonic decay of hadronscontaining heavy quarks. 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 F1 P4

    10.17182/hepdata.57257.v1/t1

    Inclusive and non photonic electrons invariant yield versus PT, for minimum bias reactions.

  • Table 2

    Data from F1 P4

    10.17182/hepdata.57257.v1/t2

    Non photonic electrons invariant yield versus PT for different ranges of centrality.

  • Table 3

    Data from F2 P5

    10.17182/hepdata.57257.v1/t3

    Nuclear modification factor as a function of PT, for 0-10% central reactions Note that the systematic error given is related...

  • Table 4

    Data from F2 P5

    10.17182/hepdata.57257.v1/t4

    Nuclear modification factor as a function of PT, for 10-20% central reactions Note that the systematic error given is related...

  • Table 5

    Data from F2 P5

    10.17182/hepdata.57257.v1/t5

    Nuclear modification factor as a function of PT, for 20-40% central reactions Note that the systematic error given is related...

  • Table 6

    Data from F2 P5

    10.17182/hepdata.57257.v1/t6

    Nuclear modification factor as a function of PT, for 40-60% central reactions Note that the systematic error given is related...

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