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Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at $ \sqrt{s}=7 $ TeV

The ALICE collaboration
JHEP 1509 (2015) 148, 2015

Abstract (data abstract)
CERN-LHC. Prompt D meson and non-prompt JPSI yields are studied as a function of the multiplicity of charged particles produced in inelastic proton-proton collisions at a centre-of-mass energy of SQRT(S) = 7 TeV. The results are reported as a ratio between yields in a given multiplicity interval normalised to the multiplicity-integrated ones (relative yields). They are shown as a function of the multiplicity of charged particles normalised to the average value for inelastic collisions (relative charged-particle multiplicity). D$^{0}$, D$^{+}$ and D*$^{+}$ mesons are measured in five PT intervals from 1 GeV/c to 20 GeV/c and for |YRAP| < 0.5 via their hadronic decays. The D0-meson relative yield is also measured as a function of the relative multiplicity at forward pseudo-rapidity. The non-prompt JPSI i.e. the B hadron, contribution to the inclusive JPSI production is measured in the di-electron decay channel at central rapidity. It is evaluated for PT > 1.3 GeV/c and |YRAP| < 0.9, and extrapolated to PT > 0.

  • Table 1

    Data from Figure 4 and Table A.2

    10.17182/hepdata.69529.v1/t1

    Average of D$^{0}$, D$^{+}$ and D*$^{+}$ mesons relative yields for the sum of particle and antiparticle in several multiplicity and...

  • Table 2

    Data from AuxFig 4 and Table A.1

    10.17182/hepdata.69529.v1/t2

    Average of D$^{0}$, D$^{+}$ and D*$^{+}$ mesons relative yields for the sum of particle and antiparticle in several multiplicity and...

  • Table 3

    Data from Figure 5 and Table A.4

    10.17182/hepdata.69529.v1/t3

    D$^{0}$-meson relative yields for the sum of particle and antiparticle in several multiplicity and PT intervals for pp collisions at...

  • Table 4

    Data from AuxFig. 5 and Table A.3

    10.17182/hepdata.69529.v1/t4

    D$^{0}$-meson relative yields for the sum of particle and antiparticle in several multiplicity and PT intervals for pp collisions at...

  • Table 5

    Data from Figure 7 and Table A.5

    10.17182/hepdata.69529.v1/t5

    Fraction of non-prompt JPSI measured for PT > 1.3 GeV/c, $f_{\rm B}$(%), and extrapolated down to PT > 0, $f_{\rm...

  • Table 6

    Data from Figure 8 and Table A.6

    10.17182/hepdata.69529.v1/t6

    Prompt and non-prompt relative JPSI relative yields for PT > 0 in the in different multiplicity bins. The first and...

  • Table 7

    Data from AuxFig 8 and Table A.5

    10.17182/hepdata.69529.v1/t7

    Prompt and non-prompt relative JPSI relative yields for PT > 0 in the in different multiplicity bins. The first and...

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