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\@writefile{lof}{\contentsline {figure}{\numberline {3}{\ignorespaces Tagging efficiencies as functions of (a) $\ensuremath  {W_{\gamma p, rec}}\xspace  $ and (b) $\ensuremath  {-t_{rec}}\xspace  $ as obtained from the simulations of elastic and proton-dissociative $J/\psi $ production. Tagging fractions as functions of (c) $\ensuremath  {W_{\gamma p, rec}}\xspace  $ and (d) $\ensuremath  {-t_{rec}}\xspace  $, as obtained from the $e^+ e^-$ data set in the invariant mass window $m_{ee} = 2.3-3.3\tmspace  +\thinmuskip {.1667em}\unhbox \voidb@x \hbox {GeV}$. The data set contains elastic and proton-dissociative $J/\psi $ decays, as well as $e p \rightarrow e X \tmspace  +\medmuskip {.2222em} e^+ e^-$ events. It is compared to the simulation based on the event generators DIFFVM and GRAPE. The data (simulations) are shown by points (shaded bands). The vertical spread of the bands represents the uncertainty due to the tagging in the simulation. }}{25}}
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\@writefile{lof}{\contentsline {figure}{\numberline {10}{\ignorespaces  Compilation of elastic $\ensuremath  {{J/\psi }}\xspace  $ production cross section measurements including this measurement, previous HERA results\nobreakspace  {}\cite  {Aktas:2005xu, Chekanov:2002xi}, results from fixed target experiments\nobreakspace  {}\cite  {Binkley:1981kv, Denby:1983az} and from LHCb\nobreakspace  {}\cite  {Aaij:2013jxj}. Also presented is the fit to the H1 data only, indicated by the curve. The fit is extrapolated in $\ensuremath  {W_{\gamma p}}\xspace  $ from the range of the input data to higher values, as shown by the dashed curve. The shaded band indicates the uncertainty on the fit. }}{32}}
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