Conveners
Accelerators for HEP
- Xavier Buffat (CERN)
- Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))
Accelerators for HEP
- Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))
- Xavier Buffat (CERN)
Physics Beyond Colliders is an exploratory study aimed at exploiting the full scientific potential of CERN's accelerator complex and its scientific infrastructure in the next two decades through projects complementary to the LHC, HL-LHC and other possible future colliders. These projects should target fundamental physics questions that are similar in spirit to those addressed by high-energy...
The Gamma Factory (GF) initiative proposes to use partially stripped ion (PSI) beams as drivers of a new type of high intensity and high energy (1-400 MeV) photon source. As part of the ongoing Physics Beyond Collider studies, initial beam tests with PSI beams have been carried out in 2017 and 2018 at the SPS and LHC with partially stripped xenon and lead beams. This contribution discusses...
LHC Run 2 ended with the 2018 Pb-Pb collision run, during which a luminosity 6 times beyond the design was achieved by further exploiting mitigations of the phenomena limiting luminosity that had been established in the 2015 run. Similar records were achieved with p-Pb collisions in 2016, a complex run, within a tight time frame, providing data sets at different energies, both in...
Status of the project of NICA (Nuclotron-based Ion Collider fAcility) accelerator complex, which is under construction at JINR (Dubna, Russia), is presented. The main goal of the project is to provide ion beams for experimental studies of hot and dense baryonic matter and spin physics.
The NICA collider will provide heavy ion collisions in the energy range of √sNN=4÷11 GeV at average...
The high luminosity LHC (HL-LHC) will use transverse
deflecting superconducting cavities (aka crab cavities) to achieve
head-on collisions at the interaction points (IP1 and IP5). Crab
cavities will recover the geometric luminosity loss due to the finite
crossing angle at the IPs without which the peak luminosity loss can be
up to 70 %. The development of the superconducting crab...
A unique experimental apparatus with 4 bent crystals is installed in the betatron collimation insertion of the Large Hadron Collider (LHC) at CERN. This setup is designed to study experimentally the crystal-assisted collimation of high-energy hadron beams and it has been used, with various improvements throughout the years, since 2015. After the first observation of channeling of proton and...
High energy hadron colliders are powerful tools for high energy physics research. The later experience at the Large Hadron Collider showed the fundamental need of strong Landau damping to keep the beams on stable orbits and achieve the luminosity goals needed for studying rare physics events. In the LHC the Landau damping is ensured by Landau octupole magnets that provide the necessary...
Machine learning techniques have been used extensively in several domains of Science and Engineering for decades. These powerful tools have been applied also to the domain of high-energy physics, in the analysis of the data from particle collisions, for years already. Accelerator physics, however, has not started exploiting machine learning until very recently. Several activities are...
The Large Hadron-electron Collider (LHeC) is a proposed upgrade of the LHC at CERN. An Energy Recovery Linac (ERL) in racetrack configuration will provide an intense electron beam of up to 60 GeV energy to collide with the HL-LHC proton and ion beams. This configuration is also foreseen to be achieve higher energy $ep/e$A collisions eventually with those from the HE-LHC and the FCC-hh. Such...
DA$\Phi$NE is an lepton collider becoming operational in 2000. It has been providing data in consecutive data-taking periods for the KLOE, DEAR and FINUDA experiments until 2006 [(1)][1],for Siddharta in 2009, and again for the upgraded KLOE-2 between November 2014 and March 2018 [(2)][2],[(3)][3]. It will continue operating for PADME (just using the upgraded...
SuperKEKB, the upgraded successor to KEKB, is an asymmetric electron-positron collider. Aiming for 40 times higher luminosity than KEKB by shrinking the beams to "nano-beam" size at the interaction point while doubling the beam currents, SuperKEKB has been commissioned in a phased manner. In the Phase 2 operation of SuperKEKB, the first collisions were recorded and the smallest value in the...
A primary electron beam facility is proposed at CERN with main motivations; (i) dark sector experiments, and (ii), enabling a suite of development projects in accelerator technology.
The facility consists of a 3.5 GeV X-band linac injecting electrons into the SPS where the electron beam can be accelerated to around 16 GeV. This presentation will cover the design studies for the 3.5 GeV...
FCC-ee is a double-ring e+e- collider to be operated in the range of collision energies from Z-pole (91 GeV) to ttbar (up to 365 GeV). The design of FCC-ee aims to achieve a very high luminosity, which only a crab waist collision scheme can provide. Simulations for the FCC-ee revealed new types of beam instability associated with large Piwinski angle and beamstrahlung, that may limit the...
The FCC-ee project studies the design of a future 100 km e+/e circular collider for precision studies and rare decay observations in the range of 90 to 350 GeV center of mass energy with luminosities in the order of 10$^{35}$ cm$^{-2}$ s$^{-1}$. In order to reach this high luminosity, extreme focusing is required in the interaction regions, with the beta function values range from 0.8 mm to...
The klystron based high RF power system is a core element of the particle accelerator. The large-scale future accelerator projects such as FCC, CLIC and ILC will consume RF power at a level of hundred MW. Thus, the economical aspects of the machine operation, the environmental issues and the installation cost strongly depend on the efficiency performance of the RF power sources. The klystron...
After a breakthrough year which saw acceleration of electrons up to 2 GeV in 10 metres of self modulated, proton driven plasma wakefields, the AWAKE experiment looks forward to further development in Run 2 (2021-4). The AWAKE experimental program plans to demonstrate scalability by the production high quality, high energy electron beams. With proton bunches provided by the SPS or the LHC,...
The Compact Linear Collider (CLIC) collaboration has submitted to the European Strategy Update a Project Implementation Plan for construction of a 380 GeV e+e- linear collider at CERN. The machine is upgradeable in stages to 3 TeV. The CLIC design is based on high-gradient normal-conducting accelerating structures operating at X-band (12 GHz) frequency.
We present the CLIC accelerator...
Muon colliders potentially offer a road to very high energy lepton colliders in the multi-TeV regime. Therefore the interest in this technology has increased during the preparation of the update of the European Strategy for Particle Physics.
In the talk the status of the research will be presented and the potential path forward will be highlighted.
The Low EMittance Muon Accelerator (LEMMA) concept uses a positron-driven muon source, providing an attractive path to very high energy lepton colliders with improved particle backgrounds. The recent developments of the LEMMA overall layout will be described, together with its main challenges. The positron beam is stored in a ring with high energy acceptance and low emittance and then...
Meson factories are powerful drivers of diverse physics programs and play a major role in particle physics at intensity frontiers.
Currently PSI delivers the most intense continuous muon beam in the world up to 5 x 10^8 μ+/s. The High Intensity Muon Beam (HiMB) project at PSI aims at develop new muon beam lines able to provide up to 10^10 μ+/s. While next generation of proton drivers with...
