Technical Design Report of the ALICE Forward Calorimeter (FoCal)

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FoCal is an upgrade of the ALICE experiment at the LHC, to be installed during Long Shutdown 3 for data-taking in the period 2029-2032. FoCal consists of a highly granular Si+W electromagnetic calorimeter combined with a Cu+scintillating-fiber hadronic calorimeter, covering pseudo-rapidity $3.2<\eta<5.8$. FoCal has unique capabilities to measure direct photon production at forward rapidity, which probes the gluon distribution in protons and nuclei at small-$x$, and is theoretically calculable at high precision. FoCal will carry out inclusive and correlation measurements of photons, neutral mesons, and jets in hadronic pp and p-Pb collisions, as well as J/$\psi$ production in ultra-peripheral p-Pb and Pb-Pb collisions. FoCal extends significantly the scope of the ALICE physics program to explore the dynamics of hadronic matter and the nature of QCD evolution at small $x$, down to $x\sim10^{-6}$. 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border="0" cellspacing="1" class="searchbox"> <tr> <td align="left" colspan="2" class="portalboxheader"> <img src='http://cds.cern.ch/record/2890281/files/ALICE-TDR-022.jpg?subformat=icon-180' border="0" />  ALICE-TDR-022 </td> </tr><tr> <td class="portalboxheader"> <font size="-2">Version 5<br />(see <a href="http://cds.cern.ch/record/2890281/files/?docname=ALICE-TDR-022&version=all&ln=de">vorherige</a>)</font> </td> <td> <table> <tr> <td valign="top"> <small><a href="http://cds.cern.ch/record/2890281/files/ALICE-TDR-022.jpg?subformat=icon-180&version=5">ALICE-TDR-022.jpg (icon-180)</a></small> </td> <td valign="top"> <font size="-2" color="green">[73.32 KB]</font> <font size="-2"><em>18 Jul 2024, 09:03</em> </td> <td valign="top"><em></em></td> </tr><tr> <td valign="top"> <small><a href="http://cds.cern.ch/record/2890281/files/ALICE-TDR-022.pdf?version=5">ALICE-TDR-022.pdf</a></small> </td> <td valign="top"> <font size="-2" color="green">[118.42 MB]</font> <font size="-2"><em>18 Jul 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Technical Design Report of the ALICE Forward Calorimeter (FoCal) - CERN Document Server