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MuCol Milestone Report No. 7: Consolidated Parameters
Rebecca Taylor, Antoine Chancé, Dario Augusto Giove +459
This document is comprised of a collection of consolidated parameters for the key parts of the muon collider. These consolidated parameters follow on from the October 2024 Prelimin…
The Muon Collider
Carlotta Accettura, Simon Adrian, Rohit Agarwal +450
Muons offer a unique opportunity to build a compact high-energy electroweak collider at the 10 TeV scale. A Muon Collider enables direct access to the underlying simplicity of the…
The Compact Linear ee Collider (CLIC)
Erik Adli, Gerardo D'Auria, Nuria Catalan Lasheras +22
The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear ee collider studied by the international CLIC and CLICdp collaborations. CLIC uses a two-beam accel…
MuCol Milestone Report No. 5: Preliminary Parameters
Carlotta Accettura, Simon Adrian, Rohit Agarwal +391
This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2…
Interim report for the International Muon Collider Collaboration (IMCC)
C. Accettura, S. Adrian, R. Agarwal +383
The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implemen…
Particle Motion in Hamiltonian Formalism
Yannis Papaphilippou
The goal of this contribution is to introduce the Hamiltonian formalism of theoretical mechanics for analysing motion in generic linear and non-linear dynamical systems, including…
Interplay of space charge and intrabeam scattering in the LHC ion injector chain
Michail Zampetakis, Fanouria Antoniou, Foteini Asvesta +3
The ion injectors of the CERN accelerator chain, in particular the Super Proton Synchrotron (SPS) and the Low Energy Ion Ring (LEIR), operate in a strong space charge (SC) and intr…
Interplay of space charge, intrabeam scattering and synchrotron radiation in the Compact Linear Collider damping rings
Michail Zampetakis, Fanouria Antoniou, Foteini Asvesta +2
Future ultra-low emittance rings for electron/positron colliders require extremely high beam brightness and can thus be limited by collective effects. In this paper, the interplay…
The CLIC project
O. Brunner, P. N. Burrows, S. Calatroni +18
The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear ee-collider under development by the CLIC accelerator collaboration, hosted by CERN. The CLIC accel…
First Experimental Evidence of a Beam-Beam Long-Range Compensation Using Wires in the Large Hadron Collider
A. Poyet, A. Bertarelli, F. Carra +10
In high intensity and high energy colliders such as the CERN Large Hadron Collider and its future High Luminosity upgrade, interactions between the two beams around the different I…
A first taste of nonlinear beam dynamics
H. Bartosik, Y. Papaphilippou, A. Wolski
Nonlinear dynamics can impact the performance of a particle accelerator in a number of different ways, depending on the type of the accelerator and the parameter regime in which it…
Resonance driving terms and tune spread with amplitude driven a beam-beam long range kick and a DC wire kick
Kyriacos Skoufaris, Guido Sterbini, Yannis Papaphilippou
This document presents in detail the derivation of the formulas that describe the resonance driving terms and the tune spread with amplitude generated by the beam-beam long range i…
Numerical analysis techniques for non-linear dynamics
Yannis Papaphilippou
The content of this contribution is based on the course on numerical analysis techniques for non-linear dynamics. After introducing basic concepts as the visual analysis of traject…
Impact of the 50 Hz harmonics on the beam evolution of the Large Hadron Collider
Sofia Kostoglou, Gianluigi Arduini, Leandro Intelisano +2
Harmonics of the mains frequency (50 Hz) have been systematically observed in the transverse beam spectrum of the Large Hadron Collider (LHC) since the start of its operation in th…
Extracting chromatic properties of electron beams from spectral analysis of turn-by-turn beam position data
Panagiotis Zisopoulos, Yannis Papaphilippou
A method to estimate linear chromaticity, RMS energy spread, and chromatic beta-beating, directly from turn-by-turn beam position data in a circular electron accelerator, is presen…
A primary electron beam facility at CERN -- eSPS Conceptual design report
M. Aicheler, T. Akesson, F. Antoniou +52
The design of a primary electron beam facility at CERN is described. The study has been carried out within the framework of the wider Physics Beyond Colliders study. It re-enables…
Identification and characterization of high order incoherent space charge driven structure resonances in the CERN Proton Synchrotron
Foteini Asvesta, Hannes Bartosik, Simone Gilardoni +4
Space charge is typically one of the performance limitations for the operation of high intensity and high brightness beams in circular accelerators. In the Proton Synchrotron (PS)…
Mitigation of Collective Effects by Optics Optimisation
Y. Papaphilippou, F. Antoniou, H. Bartosik
This paper covers recent progress in the design of optics solutions to minimize collective effects such as beam instabilities, intra-beam scattering or space charge in hadron and l…
Tune modulation effects in the High Luminosity Large Hadron Collider
Sofia Kostoglou, Hannes Bartosik, Yannis Papaphilippou +2
Several transverse noise sources, such as power supply ripples, can potentially act as an important limiting mechanism for the luminosity production of the Large Hadron Collider (L…
Origin of the 50 Hz harmonics in the transverse beam spectrum of the Large Hadron Collider
Sofia Kostoglou, Gianluigi Arduini, Leandro Intelisano +2
Since the beginning of the Large Hadron Collider (LHC) commissioning, spectral components at harmonics of the mains frequency (50 Hz) have been observed in the transverse beam spec…
A primary electron beam facility at CERN
T. Åkesson, R. Corsini, Y. Dutheil +6
This paper describes the concept of a primary electron beam facility at CERN, to be used for dark gauge force and light dark matter searches. The electron beam is produced in three…
Refined betatron tune measurements by mixing beam position data
Panos Zisopoulos, Yannis Papaphilippou, Jacques Laskar
The measurement of the betatron tunes in a circular accelerator is of paramount importance due to their impact on beam dynamics. The resolution of the these measurements, when usin…
Emittance reduction with variable bending magnet strengths: Analytical optics considerations and application to the Compact Linear Collider damping ring design
S. Papadopoulou, F. Antoniou, Y. Papaphilippou
One of the main challenges of the lattice design of synchrotrons, used as light sources or damping rings (DRs), is the minimization of the emittance. The optimal lattice configurat…
Impact of Non-Gaussian Beam Profiles in the Performance of Hadron Colliders
S. Papadopoulou, F. Antoniou, T. Argyropoulos +3
At the Large Hadron Collider (LHC), the interplay between a series of effects, including intrabeam scattering (IBS), synchrotron radiation, longitudinal beam manipulations, two bea…