CERN Accelerating science

 
Total cross sections for top pair and single-top (sum of $t$-,$s$-channels plus $t\,W$ processes) production in \PbPb\, \pPb\ and \pp\ collisions as a function of c.m. energy. The dashed boxes indicate the nominal nucleon-nucleon c.m. energies, $\sqrtsnn$~=~5.5, 8.8, 39, 63~TeV, of the heavy-ion runs at the LHC and FCC.
Theoretical nuclear modification factor as a function of the (anti)top rapidity in $\ttbar$ production in \PbPb\ (left panels) and \pPb\ (right panels) at $\sqrtsnn$~=~5.5,8.8~TeV (LHC, top panels) and 39, 63~TeV (FCC, bottom panels), computed at NLO accuracy with \mcfm. The central curve indicates the result obtained with central EPS09 parametrization and the grey band the corresponding nPDF uncertainty.
Theoretical nuclear modification factor as a function of the (anti)top rapidity in $\ttbar$ production in \PbPb\ (left panels) and \pPb\ (right panels) at $\sqrtsnn$~=~5.5,8.8~TeV (LHC, top panels) and 39, 63~TeV (FCC, bottom panels), computed at NLO accuracy with \mcfm. The central curve indicates the result obtained with central EPS09 parametrization and the grey band the corresponding nPDF uncertainty.
Theoretical nuclear modification factor as a function of the (anti)top rapidity in $\ttbar$ production in \PbPb\ (left panels) and \pPb\ (right panels) at $\sqrtsnn$~=~5.5,8.8~TeV (LHC, top panels) and 39, 63~TeV (FCC, bottom panels), computed at NLO accuracy with \mcfm. The central curve indicates the result obtained with central EPS09 parametrization and the grey band the corresponding nPDF uncertainty.
Theoretical nuclear modification factor as a function of the (anti)top rapidity in $\ttbar$ production in \PbPb\ (left panels) and \pPb\ (right panels) at $\sqrtsnn$~=~5.5,8.8~TeV (LHC, top panels) and 39, 63~TeV (FCC, bottom panels), computed at NLO accuracy with \mcfm. The central curve indicates the result obtained with central EPS09 parametrization and the grey band the corresponding nPDF uncertainty.
Expected top-quark $\pt$ distributions in \PbPb\ (left panels) and \pPb\ (right panels) in the fully-leptonic decay modes at $\sqrtsnn$~=~5.5,\,8.8~TeV (LHC, top panels) and 39,\,63~TeV (FCC, bottom panels) after acceptance and efficiency cuts. The curves are a fit to the underlying \mcfm\ distribution. The markers indicate pseudodata corresponding to the luminosities listed in Table~\ref{tab:yields}.
Expected top-quark $\pt$ distributions in \PbPb\ (left panels) and \pPb\ (right panels) in the fully-leptonic decay modes at $\sqrtsnn$~=~5.5,\,8.8~TeV (LHC, top panels) and 39,\,63~TeV (FCC, bottom panels) after acceptance and efficiency cuts. The curves are a fit to the underlying \mcfm\ distribution. The markers indicate pseudodata corresponding to the luminosities listed in Table~\ref{tab:yields}.
Expected top-quark $\pt$ distributions in \PbPb\ (left panels) and \pPb\ (right panels) in the fully-leptonic decay modes at $\sqrtsnn$~=~5.5,\,8.8~TeV (LHC, top panels) and 39,\,63~TeV (FCC, bottom panels) after acceptance and efficiency cuts. The curves are a fit to the underlying \mcfm\ distribution. The markers indicate pseudodata corresponding to the luminosities listed in Table~\ref{tab:yields}.
Expected top-quark $\pt$ distributions in \PbPb\ (left panels) and \pPb\ (right panels) in the fully-leptonic decay modes at $\sqrtsnn$~=~5.5,\,8.8~TeV (LHC, top panels) and 39,\,63~TeV (FCC, bottom panels) after acceptance and efficiency cuts. The curves are a fit to the underlying \mcfm\ distribution. The markers indicate pseudodata corresponding to the luminosities listed in Table~\ref{tab:yields}.
Impact on the nuclear glue of $\ttbar$ (pseudo)data for the full LHC heavy-ion programme. Left: Nuclear modification factor for $\ttbar$ decay-leptons as a function of rapidity, R$_{_{\rm PbPb}}(y_{\ell})$, obtained for \PbPb\ at $\sqrtsnn$~=~5.5~TeV (top) and \pPb\ at $\sqrtsnn$~=~8.8~TeV (bottom) compared to predictions computed with EPS09: current nPDF set (region enclosed by the red dotted lines) and after pseudodata-reweighting (blue curve plus grey band). Right: Ratio of nuclear-over-proton gluon densities, R$_{_{\rm g}}^{^{\rm Pb}}$ evaluated at $Q^2=m_{\rm t}$, for the original EPS09 (band enclosed by red dotted lines) and for the reweighted EPS09 (blue curve with grey band) for \PbPb\ (top) and \pPb\ (bottom).
Impact on the nuclear glue of $\ttbar$ (pseudo)data for the full LHC heavy-ion programme. Left: Nuclear modification factor for $\ttbar$ decay-leptons as a function of rapidity, R$_{_{\rm PbPb}}(y_{\ell})$, obtained for \PbPb\ at $\sqrtsnn$~=~5.5~TeV (top) and \pPb\ at $\sqrtsnn$~=~8.8~TeV (bottom) compared to predictions computed with EPS09: current nPDF set (region enclosed by the red dotted lines) and after pseudodata-reweighting (blue curve plus grey band). Right: Ratio of nuclear-over-proton gluon densities, R$_{_{\rm g}}^{^{\rm Pb}}$ evaluated at $Q^2=m_{\rm t}$, for the original EPS09 (band enclosed by red dotted lines) and for the reweighted EPS09 (blue curve with grey band) for \PbPb\ (top) and \pPb\ (bottom).
Impact on the nuclear glue of $\ttbar$ (pseudo)data for the full LHC heavy-ion programme. Left: Nuclear modification factor for $\ttbar$ decay-leptons as a function of rapidity, R$_{_{\rm PbPb}}(y_{\ell})$, obtained for \PbPb\ at $\sqrtsnn$~=~5.5~TeV (top) and \pPb\ at $\sqrtsnn$~=~8.8~TeV (bottom) compared to predictions computed with EPS09: current nPDF set (region enclosed by the red dotted lines) and after pseudodata-reweighting (blue curve plus grey band). Right: Ratio of nuclear-over-proton gluon densities, R$_{_{\rm g}}^{^{\rm Pb}}$ evaluated at $Q^2=m_{\rm t}$, for the original EPS09 (band enclosed by red dotted lines) and for the reweighted EPS09 (blue curve with grey band) for \PbPb\ (top) and \pPb\ (bottom).
Impact on the nuclear glue of $\ttbar$ (pseudo)data for the full LHC heavy-ion programme. Left: Nuclear modification factor for $\ttbar$ decay-leptons as a function of rapidity, R$_{_{\rm PbPb}}(y_{\ell})$, obtained for \PbPb\ at $\sqrtsnn$~=~5.5~TeV (top) and \pPb\ at $\sqrtsnn$~=~8.8~TeV (bottom) compared to predictions computed with EPS09: current nPDF set (region enclosed by the red dotted lines) and after pseudodata-reweighting (blue curve plus grey band). Right: Ratio of nuclear-over-proton gluon densities, R$_{_{\rm g}}^{^{\rm Pb}}$ evaluated at $Q^2=m_{\rm t}$, for the original EPS09 (band enclosed by red dotted lines) and for the reweighted EPS09 (blue curve with grey band) for \PbPb\ (top) and \pPb\ (bottom).
As Figure~\ref{fig:data1} but for the case of \PbPb\ (top) and \pPb\ (bottom) per FCC-year pseudodata.
As Figure~\ref{fig:data1} but for the case of \PbPb\ (top) and \pPb\ (bottom) per FCC-year pseudodata.
As Figure~\ref{fig:data1} but for the case of \PbPb\ (top) and \pPb\ (bottom) per FCC-year pseudodata.
As Figure~\ref{fig:data1} but for the case of \PbPb\ (top) and \pPb\ (bottom) per FCC-year pseudodata.