CERN Yellow Reports: Monographs, Vol 2 (2018): The Compact Linear e+e− Collider (CLIC) : 2018 Summary Report

A Muon-Ion Collider at BNL: the future QCD frontier and path to a new energy frontier of $μ^+μ^-$ colliders

“…After the e + e − Higgs factory, muon collider technology would hopefully have matured with the MuIC as the cornerstone of a joint effort between the NP and HEP communities. Constructing a µ + µ − collider at O (10) TeV would then open the next energy frontier to directly probe new physics, possibly re-using the existing facility and infrastructure at CERN, which significantly reduces the civil engineering cost.…”

“…[5][6][7]. A MuIC at BNL would serve also as a major step toward a future muon-antimuon (µ + µ − ) collider, which has received revived attention in the particle physics community in recent years because of its potential of reaching √ s = O (10) TeV in a relatively compact tunnel (e.g., the size of the LHC). It has been argued that for the production cross section of a heavy unknown particle, the discovery potential of this particle at a 14 TeV µ + µ − collider matches that of a 100 TeV proton-proton collider (e.g., FCC) [8], as all the available beam energy is carried by the interacting muons.…”

“…Such a demonstrator still requires tremendous R&D efforts and significant cost, so a compelling science program that is not accessible by other proposed facilities is needed. For example, the physics of a µ + µ − collider with √ s of several hundred GeV to 1 TeV may not be competitive with an e + e − collider proposed with more established technology, such as the International Linear Collider (ILC) [9], the Compact Linear Collider (CLIC) [10], the Circular Electron Positron Collider (CEPC) [11], and the FCC-ee [4].…”

Key4hep, a framework for future HEP experiments and its use in FCC

“…At the same time, developing and validating sophisticated algorithms, including accounting for a large number of edge cases, require a significant amount of resources. Thus, the communities for future experiments-CEPC [2], CLIC [3], FCC [4], ILC [5], SCT [6], STC [7]-came to the agreement that the development of a common software solution would benefit everyone [8,9]. Software development is a collaborative effort, and one way Key4hep facilitates writing-specific components for experiments is by maximising the re-use of established solutions and packages to benefit from existing community developments, for example, ROOT [10], Geant4 [11], DD4hep [12], Gaudi [13] and PODIO [14].…”

Test-beam characterisation of the CLICTD technology demonstrator - a small collection electrode High-Resistivity CMOS pixel sensor with simultaneous time and energy measurement

“…The CLIC tracker detector (CLICTD) is a monolithic high-resistivity (HR) CMOS sensor targeting the requirements of the tracking detector for a future Higgs factory such as the Compact Linear Collider (CLIC) [1]. CLIC is a concept for a linear electron position collider with centreof-mass energies between 380 GeV and 3 TeV.…”