Author(s)
|
Bruce, Roderik (CERN) ; d'Enterria, David (CERN) ; de Roeck, Albert (CERN) ; Drewes, Marco (Louvain U., CP3) ; Farrar, Glennys R. (New York U., CCPP) ; Giammanco, Andrea (Louvain U., CP3) ; Gould, Oliver (Helsinki U.) ; Hajer, Jan (Louvain U., CP3) ; Harland-Lang, Lucian (Oxford U.) ; Heisig, Jan (Louvain U., CP3) ; Jowett, John M. (CERN) ; Kabana, Sonia (SUBATECH, Nantes) ; Krintiras, Georgios K. (Louvain U., CP3) ; Korsmeier, Michael (Aachen, Tech. Hochsch. ; Turin U. ; INFN, Turin) ; Lucente, Michele (Louvain U., CP3) ; Milhano, Guilherme (CMAF, Lisbon ; Lisbon, IST) ; Mukherjee, Swagata (Aachen, Tech. Hochsch.) ; Niedziela, Jeremi (CERN) ; Okorokov, Vitalii A. (Moscow Phys. Eng. Inst.) ; Rajantie, Arttu (Imperial Coll., London) ; Schaumann, Michaela (CERN) |
Abstract
| This document summarises proposed searches for new physics accessible in the heavy-ion mode at the CERN Large Hadron Collider (LHC), both through hadronic and ultraperipheral $\gamma\gamma$ interactions, and that have a competitive or, even, unique discovery potential compared to standard proton-proton collision studies. Illustrative examples include searches for new particles -- such as axion-like pseudoscalars, radions, magnetic monopoles, new long-lived particles, dark photons, and sexaquarks as dark matter candidates -- as well as new interactions, such as non-linear or non-commutative QED extensions. We argue that such interesting possibilities constitute a well-justified scientific motivation, complementing standard quark-gluon-plasma physics studies, to continue running with ions at the LHC after the Run-4, i.e. beyond 2030, including light and intermediate-mass ion species, accumulating nucleon-nucleon integrated luminosities in the accessible fb$^{-1}$ range per month. |