Towards future circular colliders

Benedikt, Michael; Zimmermann, F.

doi:10.3938/jkps.69.893

Cited by 55 publications

(41 citation statements)

References 13 publications

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“…Following upgrades to the LHC accelerator complex in Long Shutdown 3 (2024-6), the High-Luminosity LHC (HL-LHC) [3,4] will increase the instantaneous luminosity by about a factor 2 to 5 from current levels, with the goal to accumulate a total of at least 3 ab −1 of data. The higher instantaneous luminosity will result in around 200 concurrent interactions per LHC bunch crossing, termed pileup, spread over a luminous region of a few centimetres along the beam axis, and of about few 100 ps in time.…”

Section: Introductionmentioning

confidence: 99%

Prospects for a precision timing upgrade of the CMS PbWO4 crystal electromagnetic calorimeter for the HL-LHC

Marzocchi

2020

Nuclear Instruments and Methods in Physics Research Section A:

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The upgrade of the Compact Muon Solenoid (CMS) crystal electromagnetic calorimeter (ECAL), which will operate at the High Luminosity Large Hadron Collider (HL-LHC), will achieve a timing resolution of around 30 ps for high energy photons and electrons. In this talk we will discuss the benefits of precision timing for the ECAL event reconstruction at HL-LHC. Simulation studies on the timing properties of PbWO crystals, as well as the impact of the photosensors and the readout electronics on the timing performance, will be presented. Test beam studies on the timing performance of PbWO crystals with various photosensors and readout electronics will be shown. AbstractThe upgrade of the Compact Muon Solenoid (CMS) crystal electromagnetic calorimeter (ECAL), which will operate at the High Luminosity Large Hadron Collider (HL-LHC), will achieve a timing resolution of around 30 ps for high energy photons and electrons. In this talk we will discuss the benefits of precision timing for the ECAL event reconstruction at HL-LHC. Simulation studies on the timing properties of PbWO crystals, as well as the impact of the photosensors and the readout electronics on the timing performance, will be presented. Test beam studies on the timing performance of PbWO 4 crystals with various photosensors and readout electronics will be shown.

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Section: Introductionmentioning

confidence: 99%

Prospects for a precision timing upgrade of the CMS PbWO4 crystal electromagnetic calorimeter for the HL-LHC

Marzocchi

2020

Nuclear Instruments and Methods in Physics Research Section A:

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“…Such approach was first suggested in the year 2010 during the High-Energy LHC (HE-LHC) workshop [9]. Now it is the focus of the Future Circular Collider (FCC) study [10], which was launched in response to the 2013 Update of the European Strategy for Particle Physics: 16 Tesla magnets in a 100 km ring will result in a centre-of-mass energy of 100 TeV. This goal defines the overall infrastructure requirements for the FCC accelerator complex.…”

Section: Energy Frontier In the 21st Centurymentioning

confidence: 99%

Accelerators in the 21st Century

Zimmermann

2018

EPJ Web Conf.

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Abstract. More than 30,000 accelerators are in operation worldwide. Of these less than 1% are devoted to basic research. Prominent among the latter are high-energy particle colliders -powerful engines of discovery and precision measurement, which have played an essential role in establishing the standard model of particle physics. Technological innovation has allowed building colliders for ever higher energy and better performance, at decreasing specific cost. New concepts will allow reaching even higher luminosities and energies throughout the coming century. One cost-effective strategy for future collider implementation is staging. For example, a future circular collider could first provide electron-positron collisions, then hadron collisions (proton-proton and heavy-ion), and, finally, the collision of muons. Indeed, cooling-free muon colliders, realizable in a number of ways, promise an attractive and energy-efficient path towards lepton collisions at tens of TeV. While plasma accelerators and dielectric accelerators offer unprecedented gradients, the construction of a high-energy collider based on these advanced technologies still faces a number of challenges. Pushing the accelerating gradients or bending fields ever further, the breakdown of the QED vacuum may, or may not, set an ultimate limit to electromagnetic acceleration.

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“…Given the long lead times of at least 20 years (see Figure 1) required to design, develop and build such a complex machine it is more than timely to start thinking about a post-LHC accelerator facility. Such is the purpose and scope of the Future Circular Collider (FCC) study [1] questions of mankind, greatly advancing technologies and scientific understanding in parallel. Can we afford not to prepare a future for the next generation?…”

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confidence: 99%