|
1.
|
Towards Beam-Beam Simulations for FCC-ee
/ Kicsiny, Peter (CERN ; Ecole Polytechnique, Lausanne) ; Buffat, Xavier (CERN) ; Iadarola, Giovanni (CERN) ; Pieloni, Tatiana (EPFL-ISIC, Lausanne) ; Schulte, Daniel (CERN) ; Seidel, Mike (Ecole Polytechnique, Lausanne ; PSI, Villigen)
The FCC-ee (Future Circular Collider) lepton collider is currently the most favored next generation research infrastructure project at CERN, aimed at studying properties of standard model particles with the highest precision ever. The chosen parameters of the machine yield unprecedented conditions which give rise to previously unseen dynamical effects during collisions. [...]
2023 - 6 p.
- Published in : JACoW eeFACT 2022 (2023) 165-170
Fulltext: PDF;
In : 65th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+ e- Colliders (eeFACT2022), INFN, Frascati, Italy, 12 - 16 Sep 2022, pp.165-170
|
|
|
2.
|
A Framework for Dynamic Aperture Studies for Colliding Beams in the High-Luminosity Large Hadron Collider
/ Kostoglou, Sofia (CERN) ; Bartosik, Hannes (CERN) ; De Maria, R (CERN) ; Papaphilippou, Yannis (CERN) ; Sterbini, Guido (CERN)
During the last physics run of the Large Hadron Collider (LHC), Dynamic Aperture (DA) studies have been successfully employed to optimize the accelerator’s performance by guiding the selection of the beam and machine parameters. In this paper, we present a framework for single-particle tracking simulations aiming to refine the envisaged operational scenario of the future LHC upgrade, the High-Luminosity LHC (HL-LHC), including strong non-linear fields such as beam-beam interactions. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 620-623
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.620-623
|
|
|
3.
|
Developments in the experimental interaction regions of the High Energy LHC
/ van Riesen-Haupt, Léon (Oxford U. ; JAI, UK) ; Abelleira, Jose Luis (JAI, UK ; Oxford U.) ; Barranco, Javier (Ecole Polytechnique, Lausanne) ; Cruz Alaniz, Emilia (JAI, UK ; Oxford U.) ; Hofer, Michael (CERN) ; Keintzel, Jacqueline (CERN) ; Pieloni, Tatiana (Ecole Polytechnique, Lausanne) ; Tambasco, Claudia (Ecole Polytechnique, Lausanne) ; Tomás, Rogelio (CERN) ; Zimmermann, Frank (CERN)
The High Energy LHC (HE-LHC) aims to collide 13.5 TeV protons in two high luminosity experiments and two low luminosity experiments. In the following, the recent updates in the two high luminosity experimental interaction regions (EIR) of the HE-LHC will be illustrated. [...]
CERN-ACC-2019-156.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP039
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP039
|
|
|
4.
|
First results of the compensation of the beam-beam effect with DC wires in the LHC
/ Sterbini, Guido (CERN) ; Amorim, David (CERN ; Grenoble, INP) ; Bartosik, Hannes (CERN) ; Bertarelli, Alessandro (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carra, Federico (CERN) ; Carver, Lee (CERN) ; Cattenoz, Gregory (CERN) ; Effinger, Ewald (CERN) et al.
The compensation of the long-range beam-beam interactions using DC wires is presently under study as an option for enhancing the machine performance in the framework of the High-Luminosity LHC Project (HL-LHC). The original idea dates back more than 15 years ago. [...]
CERN-ACC-2019-192.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEYYPLM3
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEYYPLM3
|
|
|
5.
|
Assessment of Linear and Non-Linear Optics Errors due to Beam-Beam with Multipoles for the High Luminosity LHC
/ Medina Medrano, Luis (Guanajuato U. ; CERN) ; Barranco García, Javier (Ecole Polytechnique, Lausanne) ; Buffat, Xavier (CERN) ; Pieloni, Tatiana (Ecole Polytechnique, Lausanne) ; Tomás, Rogelio (CERN)
Study of the head-on and long-range beam-beam effects in the High Luminosity LHC (HL-LHC) is of interest to evaluate their potential impact on performance (in the form of luminosity imbalance) and machine operation (collimator system), and, depending on their magnitude, correction schemes might be necessary to minimize them. In this work, both the β-beating at zero amplitude and its amplitude-dependence are computed for the current HL-LHC baseline optics and parameters, as well as the amplitude detuning, at the main interaction points and collimators. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-THPAK135
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPAK135
|
|
|
6.
|
The High Energy LHC Beam-Beam Effects studies
/ Pieloni, Tatiana (Ecole Polytechnique, Lausanne) ; Amorim, David (CERN) ; Antipov, Sergey (CERN) ; Barranco García, Javier (Ecole Polytechnique, Lausanne) ; Buffat, Xavier (CERN) ; Rivkin, Leonid (Ecole Polytechnique, Lausanne) ; Salvant, Benoit (CERN) ; Tambasco, Claudia (Ecole Polytechnique, Lausanne) ; Zimmermann, Frank (CERN)
We present in this paper the studies of beam-beam effects for the High Energy Large Hadron Collider. We will describe and review the different aspects of beam-beam interactions (i.e. [...]
CERN-ACC-2018-074.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-MOPMF069
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF069
|
|
|
7.
|
|
|
8.
|
Development of Computational Tools for Noise Studies in the LHC
/ Kostoglou, Sofia (CERN) ; Karastathis, Nikolaos (CERN) ; Papaphilippou, Yannis (CERN) ; Pellegrini, Dario (CERN) ; Zisopoulos, Panagiotis (Uppsala U. ; CERN)
Noise can have a significant impact on the beam dynamics in the LHC, enhancing diffusion processes and leading to emittance blowup. In order to study the details of such effects with computer simulations, a new set of tools is being developed. [...]
CERN-ACC-2017-184.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-THPAB044
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPAB044
|
|
|
9.
|
Observations of Beam Losses at the LHC During Reduction of Crossing Angle
/ Salvachua, Belen (CERN) ; Barranco García, Javier (Ecole Polytechnique, Lausanne) ; Buffat, Xavier (CERN) ; Crouch, Matthew (U. Manchester (main)) ; Gorzawski, Arkadiusz (Ecole Polytechnique, Lausanne ; CERN) ; Pieloni, Tatiana (CERN) ; Redaelli, Stefano (CERN) ; Tambasco, Claudia (CERN) ; Wenninger, Jorg (CERN)
Several machine development studies have been performed in 2016 at the LHC in order to evaluate the effects of reducing the crossing angles in favor of defining the maximum achievable luminosity in the ATLAS and CMS experiments. At the end of the LHC proton-proton run at 6.5TeV the reduction of the crossing angle from 185urad to 140urad was operationally implemented. [...]
CERN-ACC-2017-204.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPVA025
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPVA025
|
|
|
10.
|
Beam Dynamics Studies to Develop a High-energy Luminosity Model for the LHC
/ Campogiani, Giovanna (U. Rome La Sapienza (main)) ; Papaphilippou, Yannis (CERN)
Luminosity, the key figure of merit of a collider as the LHC, depends on the brightness of the colliding beams. This makes the intensity dependent beam-beam effect the dominant performance limiting factor at collision. [...]
CERN-ACC-2015-351.-
2015 - 3 p.
- Published in : (2015) , pp. MOPWA050
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPWA050
|
|