CERN Accelerating science

PBC Reports

nuSTORM at CERN: Feasibility Study / Long, Kenneth Richard (Imperial College (GB))
The Neutrinos from Stored Muons, nuSTORM, facility has been designed to deliver a definitive neutrino-nucleus scattering programme using beams of $\bar{\nu}_e$ and $\bar{\nu}_\mu$ from the decay of muons confined within a storage ring. The facility is unique, it will be capable of storing $\mu^\pm$ beams with a central momentum of between 1 GeV/c and 6 GeV/c and a momentum spread of 16%. [...]
CERN-PBC-REPORT-2019-003.- Geneva : CERN, 2019 - 150.

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Feasibility Study for a storage ring to search for an Electric Dipole Moment of charged particles / Stroeher, Hans (Forschungszentrum Juelich)
The proposed method exploits charged particles confined as a storage ring beam (proton, deuteron, possibly 3He) to search for an intrinsic electric dipole moment (EDM) aligned along the particle spin axis. Statistical sensitivities can approach $10^{29}$ [...]
CERN-PBC-REPORT-2019-002.- Geneva : CERN, 2019 - 200.

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Report from the LHC Fixed Target working group of the CERN Physics Beyond Colliders forum / Redaelli, Stefano (CERN) ; Ferro-Luzzi, Massimiliano (CERN) ; Hadjidakis, Cynthia (Centre National de la Recherche Scientifique (FR))
Several proposals for fixed-target experiments at the LHC are being proposed and actively studied. Splitting of beam halo from the core with a bent channeling crystal has been suggested in order to perform physics experiments with an internal solid target. [...]
CERN-PBC-REPORT-2019-001.- Geneva : CERN, 2019

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Physics Beyond Colliders QCD Working Group Report / Diehl, Markus (Deutsches Elektronen-Synchrotron (DE)) ; Schnell, Gunar (CERN) ; Pawlowski, Jan (U. Heidelberg) /QCD Working Group Collaboration
This report summarises the main findings of the QCD Working Group in the CERN Physics Beyond Colliders Study..
arXiv:1901.04482; CERN-PBC-REPORT-2018-008.- Geneva : CERN, 2018 - 81 p. Fulltext: 1901.04482 - PDF; qcd - PDF;

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Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report / Beacham, J. (Ohio State U., Columbus (main)) ; Burrage, C. (U. Nottingham) ; Curtin, D. (Toronto U.) ; De Roeck, A. (CERN) ; Evans, J. (Cincinnati U.) ; Feng, J.L. (UC, Irvine) ; Gatto, C. (INFN, Naples ; NIU, DeKalb) ; Gninenko, S. (Moscow, INR) ; Hartin, A. (U. Coll. London) ; Irastorza, I. (U. Zaragoza, LFNAE) et al.
The Physics Beyond Colliders initiative is an exploratory study aimed at exploiting the full scientific potential of the CERN’s accelerator complex and scientific infrastructures through projects complementary to the LHC and other possible future colliders. These projects will target fundamental physics questions in modern particle physics. [...]
arXiv:1901.09966; CERN-PBC-REPORT-2018-007.- Geneva : CERN, 2018 - 150 p. Full Text: PDF; Fulltext: PDF;

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PBC technology subgroup report / Siemko, Andrzej (CERN)
Goal of the technology WG set by PBC: Exploration and evaluation of possible technological contributions of CERN to non-accelerator projects possibly hosted elsewhere: survey of suitable experimental initiatives and their connection to and potential benefit to and from CERN; description of identified initiatives and how their relation to the unique CERN expertise is facilitated..
CERN-PBC-REPORT-2018-006.- Geneva : CERN, 2018 - 31. Fulltext: PDF;

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AWAKE++: The AWAKE Acceleration Scheme for New Particle Physics Experiments at CERN / Gschwendtner, Edda (CERN) ; Bartmann, Wolfgang (CERN) ; Caldwell, Allen Christopher (Max-Planck-Institut fur Physik (DE)) ; Calviani, Marco (CERN) ; Chappell, James Anthony (University of London (GB)) ; Crivelli, Paolo (ETH Zurich (CH)) ; Damerau, Heiko (CERN) ; Depero, Emilio (ETH Zurich (CH)) ; Doebert, Steffen (CERN) ; Gall, Jonathan (CERN) et al.
The AWAKE experiment reached all planned milestones during Run 1 (2016-18), notably the demonstration of strong plasma wakes generated by proton beams and the acceleration of externally injected electrons to multi-GeV energy levels in the proton driven plasma wakefields. During Run~2 (2021 - 2024) AWAKE aims to demonstrate the scalability and the acceleration of electrons to high energies while maintaining the beam quality. [...]
CERN-PBC-REPORT-2018-005.- Geneva : CERN, 2018 - 11.

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Particle physics applications of the AWAKE acceleration scheme / Wing, Matthew (University of London (GB)) ; Caldwell, Allen Christopher (Max-Planck-Institut fur Physik (DE)) ; Chappell, James Anthony (University of London (GB)) ; Crivelli, Paolo (ETH Zurich (CH)) ; Depero, Emilio (ETH Zurich (CH)) ; Gall, Jonathan (CERN) ; Gninenko, Sergei (Russian Academy of Sciences (RU)) ; Gschwendtner, Edda (CERN) ; Hartin, Anthony (University of London (GB)) ; Keeble, Fearghus Robert (University of London (GB)) et al.
The AWAKE experiment had a very successful Run 1 (2016-8), demonstrating proton-driven plasma wakefield acceleration for the first time, through the observation of the modulation of a long proton bunch into micro-bunches and the acceleration of electrons up to 2 GeV in 10 m of plasma. The aims of AWAKE Run 2 (2021-4) are to have high-charge bunches of electrons accelerated to high energy, about 10 GeV, maintaining beam quality through the plasma and showing that the process is scalable. [...]
CERN-PBC-REPORT-2018-004.- Geneva : CERN, 2018 - 11. Fulltext: PDF;

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Summary Report of Physics Beyond Colliers at CERN / Jaeckel, Joerg (CERN) ; Lamont, Mike (CERN) ; Vallee, Claude (Centre National de la Recherche Scientifique (FR))
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 colliders, but that require different types of beams and experiments. [...]
arXiv:1902.00260; CERN-PBC-REPORT-2018-003.- Geneva : CERN, 2018 - 66 p. Fulltext: PDF; PBC summary as submitted to the ESPP update in December 2018: PDF;

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Report from the Conventional Beams Working Group to the Physics beyond Colliider Study and to the European Strategy for Particle Physics / Gatignon, Lau (CERN) ; Banerjee, Dipanwita (Univ. Illinois at Urbana Champaign (US)) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Charitonidis, Nikolaos (CERN) ; D'Alessandro, Gian Luigi (University of London (GB)) ; Doble, Niels (INFN Sezione di Pisa, Universita' e Scuola Normale Superiore, Pisa (IT)) ; Van Dijk, Maarten (CERN) ; Gerbershagen, Alexander (CERN) ; Montbarbon, Eva (CERN) et al.
This document summarises the main conclusions of the Conventional Beams Working group, which has analysed the beam related and technical requirements and requests in the proposals to the Physics Beyond Colliders study for the North Area at the CERN SPS. We present results from studies on feasibility, requirements, compatibility between proposals and, where possible, the order of magnitude of the costs. [...]
CERN-PBC-REPORT-2018-002.- Geneva : CERN, 2018 Fulltext: PDF;

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