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Centrality dependence of inclusive J/ψ production in p-Pb collisions at $ \sqrt{s_{\mathrm{NN}}}=5.02 $ TeV

The ALICE collaboration
JHEP 1511 (2015) 127, 2015

Abstract (data abstract)
CERN-LHC. We present a measurement of inclusive J/$\psi$ production in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, $p_{\rm T}$, in the backward ($-4.46 < y_{\rm cms} < -2.96$) and forward ($2.03 < y_{\rm cms} < 3.53$) rapidity intervals in the dimuon decay channel and in the mid-rapidity region ($-1.37 < y_{\rm cms} < 0.43$) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction, respectively. The $p_{\rm T}$-differential J/$\psi$ production cross section at backward and forward rapidity is measured for several centrality classes, together with the corresponding average $p_{\rm T}$ and $p^2_{\rm T}$ values. The nuclear modification factor, $Q_{\rm pPb}$, is presented as a function of centrality for the three rapidity intervals, and, additionally, at backward and forward rapidity, as a function of $p_{\rm T}$ for several centrality classes.

  • Table 1

    Data from Figure 3,left (results in -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t1

    Differential cross sections dsigma_JPsi/dydpt as function of pt at backward (-4.46<y_cms<-2.96) centre-of-mass rapidity. The first uncertainty is statistical, the second...

  • Table 2

    Data from Figure 3,right (results in 2.03<y_cms<3.53)

    10.17182/hepdata.69212.v1/t2

    Differential cross sections d^2sigma^cent_JPsi/dydpt as function of pt for six centrality classes at forward (2.03<y_cms<3.53) centre-of-mass rapidity. The first uncertainty...

  • Table 3

    Data from Table 3 (results in -1.37 <y_cms< 0.43)

    10.17182/hepdata.69212.v1/t3

    Differential cross sections dsigma^cent_JPsi/dy for four centrality classes at mid-rapidity (-1.37<y_cms<0.43). The first uncertainty is statistical, the second and third...

  • Table 4

    Data from Table 3 (results in 2.03<y_cms<3.53 and -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t4

    Differential cross sections dsigma^cent_JPsi/dy for six centrality classes at forward (2.03<y_cms<3.53) and backward (-4.46<y_cms<-2.96) centre-of-mass rapidity. The first uncertainty is...

  • Table 5

    Data from Figure 5 (results in 2.03<y_cms<3.53 and -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t5

    Nuclear modification factor Q_pA as function of centrality at forward (2.03<y_cms<3.53) and backward (-4.46<y_cms<-2.96) centre-of-mass rapidity. The first uncertainty is...

  • Table 6

    Data from Figure 5 (results in -1.37 <y_cms< 0.43)

    10.17182/hepdata.69212.v1/t6

    Nuclear modification factor Q_pA as function of centrality in the mid-rapidity range (-1.37 <y_cms< 0.43). The first uncertainty is statistical,...

  • Table 7

    Data from Table 4 (results in 2.03<y_cms<3.53 and -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t7

    Values of <pT> and <pT^2> for six centrality classes at forward (2.03<y_cms<3.53) and backward (-4.46<y_cms<-2.96) centre-of-mass rapidity. The first uncertainty...

  • Table 8

    Data from Table 4 (pp interpolated results in 2.03<y_cms<3.53 and -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t8

    Values of <pT> and <pT^2> at forward (2.03<y_cms<3.53) and backward (2.96<y_cms<4.46) centre-of-mass rapidity in pp collisions calculated based on an...

  • Table 9

    Data from Figure 4 (results in 2.03<y_cms<3.53 and -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t9

    Values of Delta<pT^2> as a function of centrality at forward (2.03<y_cms<3.53) and backward (-4.46<y_cms<-2.96) centre-of-mass rapidity. The first uncertainty is...

  • Table 10

    Data from Figure 6 (results in -4.46<y_cms<-2.96)

    10.17182/hepdata.69212.v1/t10

    Nuclear modification factor Q_pA as function of pT for six centrality classes at backward (-4.46<y_cms<-2.96) centre-of-mass rapidity. The first uncertainty...

  • Table 11

    Data from Figure 6 (results in 2.03<y_cms<3.53)

    10.17182/hepdata.69212.v1/t11

    Nuclear modification factor Q_pA as a function of pT for six centrality classes at forward (2.03<y_cms<3.53) centre-of-mass rapidity. The first...

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