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PBC Reports

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2025-03-05
14:40
Report from the Conventional Beams Working Group to the Physics Beyond Colliders Study and to the European Strategy for Particle Physics / Bernhard, Johannes (CERN) ; Banerjee, Dipanwita (CERN) ; Baratto Roldan, Anna (CERN) ; Brugger, Markus (CERN) ; Charitonidis, Nikolaos (CERN) ; d'Allesandro, Gian Luigi (CERN) ; Van Dijk, Maarten (CERN) ; Doble, Niels (CERN) ; Dyks, Luke Aidan (University of Oxford (GB)) ; Gatignon, Lau (Lancaster University (GB)) 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, mainly 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-2025-001.- Geneva : CERN, 2025

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2024-08-15
14:58
A systematic Effect in EDM Rings due to radial Offsets of electrostatic Bendings and longitudinal Magnetic Fields / Cilento, Vera (CERN) ; Carli, Christian (CERN)
Optimization and realistic estimates of the sensitivity of the measurement of charged particle Electric Dipole Moment (EDM) in storage rings require a good understanding of systematic errors that can contribute to a vertical spin build-up mimicking the EDM signal to be detected. A specific case of systematic effects due to offsets of electrostatic bendings and longitudinal magnetic fields is studied. [...]
CERN-PBC-REPORT-2024-002.- Geneva : CERN, 2024 - 15. Fulltext: PDF;

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2024-06-26
14:27
Vertical Spin build-up due to Vertical Offset in Quadrupoles and Horizontal Betatron Oscillations / Cilento, Vera (CERN) ; Carli, Christian (CERN)
Many proposals to measure a possible small Electric Dipole Moment (EDM) of charged particles are based on the magic energy concept. Without EDM and for a ring without imperfections, an initial longitudinal polarization of a bunch is maintained in electro-static bendings by operation at a particular energy called the magic energy. [...]
CERN-PBC-REPORT-2024-001.- Geneva : CERN, 2024 Fulltext: PDF;

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2023-08-17
11:08
Post-LS3 Experimental Options in ECN3 / Ahdida, Claudia (CERN) ; Arduini, Gianluigi (CERN) ; Balazs, Kincso (CERN) ; Bartosik, Hannes (CERN) ; Bernhard, Johannes (CERN) ; Boyarsky, Alexey (Leiden University (NL)) ; Brod, Joachim (University of Cincinnati) ; Brugger, Markus (CERN) ; Calviani, Marco (CERN) ; Ceccucci, Augusto (CERN) et al.
The Experimental Cavern North 3 (ECN3) is an underground experimental cavern on the CERN Prévessin site. ECN3 currently hosts the NA62 experiment, with a physics programme devoted to rare kaon decays and searches of hidden particles approved until Long Shutdown 3 (LS3). [...]
CERN-PBC-REPORT-2023-003.- Geneva : CERN, 2023 - 80. Fulltext: PDF;

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2023-03-08
15:56
A Long-Baseline Atom Interferometer at CERN: Conceptual Feasibility Study / Arduini, G.
We present results from exploratory studies, supported by the Physics Beyond Colliders (PBC) Study Group, of the suitability of a CERN site and its infrastructure for hosting a vertical atom interferometer (AI) with a baseline of about 100 m [...]
arXiv:2304.00614 ; CERN-PBC-REPORT-2023-002 ; CERN-TH-2023-051 - 2023 - 51.


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2023-01-25
22:55
Findings of the Physics Beyond Colliders ECN3 Beam Delivery Task Force / Ahdida, Claudia (CERN) ; Bartosik, Hannes (CERN) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Calviani, Marco (CERN) ; Colinet, Antoine (CERN) ; Esposito, Luigi Salvatore (CERN) ; Franqueira Ximenes, Rui (CERN) ; Fraser, Matthew Alexander (CERN) ; Gautheron, Fabrice (University of Patras (GR)) et al.
The ECN3 Beam Delivery Task Force was mandated by the PBC Study Group to assess the technical feasibility of increasing the proton beam intensity to the ECN3 hall of the North Area to satisfy the demands of a compelling set of PBC experimental physics proposals. This report summarises the findings of the Task Force that converge on a technically feasible solution with an implementation timeline that could exploit and build upon the investment already foreseen as part of Phase 1 of the NA-CONS project, and take the SPS complex into a new intensity frontier for Fixed Target physics in Run4..
CERN-PBC-REPORT-2023-001.- Geneva : CERN, 06 - 43. PBC ECN3 TF Final Report: PDF;

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2020-09-17
04:36
CERN Yellow Report Front Cover A primary electron beam facility at CERN —eSPS : Conceptual design report / Aicheler, M. ; Akesson, T. (ed.) ; Stapnes, S. (ed.)
The design of a primary electron beam facility at CERN is described [...]
arXiv:2009.06938 ; CERN-2020-008 CERN-2020-008 ; CERN-PBC-REPORT-2021-004. - 2020-12. - 175 p. (CERN Yellow Reports: Monographs ; 8/2020)


Publication

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2020-04-16
06:12
The quest for new physics with the Physics Beyond Colliders programme / Jaeckel, Joerg (Heidelberg U.) ; Lamont, Mike (CERN) ; Vallée, Claude (Marseille, CPPM)
In recent years, interest in complementary methods to high-energy-frontier colliders to investigate the physics of elementary particles and forces has grown. This development is driven by the so-far negative results of searches for new particles with high masses at the Large Hadron Collider, and by theoretical attempts to account for neutrino masses and to solve cosmological puzzles such as dark matter, dark energy and the matter–antimatter asymmetry in the Universe. [...]
CERN-PBC-REPORT-2021-001.- 2020 - 9 p. - Published in : Nature Phys. 16 (2020) 393-401 External link: Fulltext
In : Nature physics : focus issue : back to the future of particle physics, pp.393-401

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2019-12-11
13:42
CERN Yellow Report Front Cover SPS Beam Dump Facility - Comprehensive Design Study / Ahdida, C.C.
The proposed Beam Dump Facility (BDF) is foreseen to be located in the North Area of the Super Proton Synchrotron (SPS) [...]
arXiv:1912.06356 ; CERN-PBC-REPORT-2019-005 ; CERN-2020-002 - 2020. - 596 p. (CERN Yellow Reports: Monographs ; 2/2020)


ebook

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2019-05-20
15:18
Protons Beyond the LHC Injectors Upgrade Project / Koukovini Platia, Eirini (CERN) ; Bartosik, Hannes (CERN) ; Forte, Vincenzo (CERN) ; Giovannozzi, Massimo (CERN) ; Huschauer, Alexander (CERN) ; Lasheen, Alexandre (CERN) ; Rumolo, Giovanni (CERN) ; Chapochnikova, Elena (CERN)
The Large Hadron Collider (LHC) Injectors Upgrade (LIU) project is implementing major changes during the second long shutdown (LS2) across the injectors complex. The main aim of the project is to improve the performance of the accelerator chain for the production of LHC beams. [...]
CERN-PBC-REPORT-2019-004.- Geneva : CERN, 2019 - 35 p. Fulltext: PDF;

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