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Measurement of charm production at central rapidity in proton-proton collisions at $\sqrt{s}=2.76$ TeV

The ALICE collaboration
JHEP 07 (2012) 191, 2012.

Abstract (data abstract)
CERN LHC. Measurements of the PT-differential production cross sections of prompt charmed mesons (D0,D+ and D*+) frp, proton-proton interactions at a centre-of-mass energy of 2.76 TeV. The data, which covers the |rapidity| region < 0.5 and PT from 1-12 GeV/c, uses a data sample of integrated luminosity 1.1 nb-1 collected during in 2011 with a minimum-bias trigger. The total charm cross section is determined by extrapolating to full phase space the PT distributions from this data at 2.76 TeV and previous ALICE measurements at 7 TeV.

  • Table 1

    Data from T 3, F 3,4


    Production cross section in |y| < 0.5 for prompt D0, D+, and D*+ mesons in pp collisions at sqrt(s) =...

  • Table 2

    Data from T 4


    Visible production cross sections of prompt D mesons for |y|<0.5 in pp collisions at sqrts=2.76 and 7 TeV. The normalization...

  • Table 3

    Data from T 5


    Production cross sections dsig/dy of D mesons, integrated over all pt for |y|<0.5. The second (sys) error is the from...

  • Table 4

    Data from T 6


    Total production cross sections of D mesons, extrapolated to the full phase space. The second (sys) error is the from...

  • Table 5

    Data from P 12


    The ratio, Pv, of cdbar D mesons produced in a vector state to those produced in a vector or a...

  • Table 6

    Data from P 12


    The weighted average of the total charm production cross section. The second (sys) error is the from the branching-ratio uncertainties,...

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