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Invariant mass distribution for events with exactly two oppositely charged muons satisfying the event selection described in the text.

noimgSummary of the contributions to the systematic uncertainty for the integrated \jpsi~cross section measurement. The error for the coherent signal extraction includes the systematic error in the fit of the invariant mass spectrum and the systematic errors on $f_D$ and $f_I$, as described in the text.

Dimuon \pt~distribution for events satisfying the event selection described in the text. The data points are fitted summing four different Monte Carlo templates: coherent \jpsi~production (dashed - blue), incoherent \jpsi~production (dotted - red), {\jpsi}s~from $\psi^{'}$ decay (dash-dotted - violet), and $\gamma \gamma \rightarrow \mu^+ \mu^-$ (dash-dotted - green). The solid histogram (black) is the sum.

Measured coherent differential cross section of \jpsi~photoproduction in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}} } = 2.76$ TeV. The error is the quadratic sum of the statistical and systematic errors. The theoretical calculations described in the text are also shown. The rapidity distributions are shown in a), b) shows the cross section integrated over -3.6 $< y <$ -2.6, and c) shows the ratio of the cross sections in the rapidity intervals -3.1 $< y <$ -2.6 and -3.6 $< y <$ -3.1. The dashed lines in the lower two plots indicate the three model categories discussed in the text.

Measured coherent differential cross section of \jpsi~photoproduction in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}} } = 2.76$ TeV. The error is the quadratic sum of the statistical and systematic errors. The theoretical calculations described in the text are also shown. The rapidity distributions are shown in a), b) shows the cross section integrated over -3.6 $< y <$ -2.6, and c) shows the ratio of the cross sections in the rapidity intervals -3.1 $< y <$ -2.6 and -3.6 $< y <$ -3.1. The dashed lines in the lower two plots indicate the three model categories discussed in the text.

Measured coherent differential cross section of \jpsi~photoproduction in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}} } = 2.76$ TeV. The error is the quadratic sum of the statistical and systematic errors. The theoretical calculations described in the text are also shown. The rapidity distributions are shown in a), b) shows the cross section integrated over -3.6 $< y <$ -2.6, and c) shows the ratio of the cross sections in the rapidity intervals -3.1 $< y <$ -2.6 and -3.6 $< y <$ -3.1. The dashed lines in the lower two plots indicate the three model categories discussed in the text.