| CMS Note | |
| Report number | CMS-CR-2024-319 |
| Title | Forward Physics at LHC - Intersection with Astrophysics |
| Author(s) | Penzo, Aldo (Iowa U.) |
| Publication | 2024 |
| Collaboration | CMS Collaboration |
| Imprint | 19 Nov 2024 |
| Number of pages | 22 |
| Presented at | 27th High-Energy Physics International Conference in Quantum Chromodynamis, Montpellier, Fr, 8 - 12 Jul 2024 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Keywords | HCAL |
| Abstract | LHC pp collisions at $\sqrt s$ = 14 TeV correspond to 100 PeV in the cosmic ray spectrum, reaching regions (such as the knee) whose interpretation is still debated, and whose models may be strongly influenced by LHC results on forward hadronic production, for instance as measured with CMS forward calorimeters. Other astrophysics problems that may receive a decisive input from LHC, and in particular HL-LHC, concern the interpretation of dark matter and dark energy in the universe, in correspondence with BSM particles that may be detected as LLP (Long-Lived-Particles). LLP searches have been generally done up to now at low pseudorapidity, as exemplified by some CMS recent results. There may be however reasons why detectors in the forward direction of LHC experiments, could be better suited for these searches, at least for some lifetime ranges, due to large relativistic boosts of the produced particles at LHC energies in the forward region. Considering the CMS forward detectors, their role for some of these searches and corresponding signatures are discussed. Additional possibilities of instrumenting specific regions of the LHC tunnel near the interaction point IP5, where CMS is installed, are discussed. |
Record created 2024-12-20, last modified 2024-12-20
