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Inclusive $J/\psi$ production in $pp$ collisions at $\sqrt{s} = 2.76$ TeV

The collaboration
Phys.Lett. B718 (2012) 295-306, 2012

Abstract (data abstract)
CERN-LHC. The ALICE Collaboration has measured inclusive J/$\psi$ production in pp collisions at a center of mass energy $\sqrt{s}$=2.76 TeV at the LHC. The results presented in this Letter refer to the rapidity ranges |y|<0.9 and 2.5<y<4 and have been obtained by measuring the electron and muon pair decay channels, respectively. The integrated luminosities for the two channels are $L^e_{int}$=1.1 nb$^{-1}$ and L$^{\mu}_{int}$=19.9 nb$^{-1}$, and the corresponding signal statistics are $N_{J/\psi}^{e^{+}e^{-}}=59 \pm 14$ and $N_{J/\psi}^{\mu^{+}\mu^{-}}=1364 \pm 53$. We present d$\sigma_{J/\psi}$/dy for the two rapidity regions under study and, for the forward-y range, $d^{2}\sigma_{J/\psi}$/dydp$_{\rm T}$ in the transverse momentum domain 0<$p_{\rm T}$<8 GeV/c. The results are compared with previously published results at $\sqrt{s}$=7 TeV and with theoretical calculations.

• #### Table 1

Data from Figure 4

10.17182/hepdata.62231.v1/t1

Double differential J/$\psi$ production cross section at $\sqrt{s}=2.76$ TeV. The first uncertainty is statistical, the second one is $p_{\rm T}$-coorelated,...

• #### Table 2

Data from Figure 5

10.17182/hepdata.62231.v1/t2

The $\sqrt{s}$-dependence of $\langle p_{\rm T}\rangle$ for inclusive J/$\psi$ production (forward rapidity).

• #### Table 3

Data from Figure 5

10.17182/hepdata.62231.v1/t3

the $\sqrt{s}$-dependence of $\langle p_{\rm T}\rangle$ for inclusive J/$\psi$ production (forward rapidity).

• #### Table 4

Data from Figure 6

10.17182/hepdata.62231.v1/t4

Differential J/$\psi$ production cross section at $\sqrt{s}=2.76$ TeV. J/$\psi$ production cross section at $\sqrt{s}=2.76$ TeV. The first uncertainty is statistical,...