2026-01-21
06:33 |
Modelling optics and beam-beam effects of SuperKEKB with Xsuite
/ Salvesen, J P T (CERN ; JAI, UK) ; Iadarola, G (CERN) ; Broggi, G (CERN ; U. Rome La Sapienza (main)) ; Oide, K (CERN) ; Zimmermann, F (CERN) ; Burrows, P N (JAI, UK) ; Sugimoto, H (KEK, Tsukuba)
SuperKEKB, located at KEK, is a second generation B-factory, providing beam to the Belle-II experiment. Optics design and simulation of SuperKEKB were previously performed using the optics code SAD, developed at KEK. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) MOPM034
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.MOPM034
|
Detaljnije
|
2026-01-21
06:33 |
Studies of resonances limiting the high-brightness LHC beams in the SPS
/ Mases Sole, Ingrid (CERN ; Goethe U., Frankfurt (main)) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Kostoglou, Sofia (CERN)
Space charge effects in combination with betatron resonances limit the performance of high-brightness LHC beams in the CERN Super Proton Synchrotron (SPS). Here we report on experimental studies performed with single-bunch proton beams, monitoring transverse emittance evolution and particle losses while performing tune scans across the horizontal and vertical planes. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPS108
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPS108
|
Detaljnije
|
2026-01-21
06:33 |
Detaljnije
|
2026-01-21
06:33 |
Impact of the inner triplet polarity on the optics commissioning of the LHC in 2024 and 2025
/ Dilly, Joschua (CERN) ; Calia, Andrea (CERN) ; Mirarchi, Daniele (CERN) ; Jacquet, Delphine (CERN) ; Fol, Elena (CERN) ; Kravishvili, Elene (CERN ; AIM, Saclay) ; Maclean, Ewen (CERN) ; Carlier, Felix (CERN) ; Soubelet, Felix (CERN) ; Trad, Georges (CERN) et al.
To mitigate the risk of radiation damage induced failure while operating the LHC beyond its initial integrated luminosity target, changes to the triplet polarity and crossing angles have been applied in the two main experimental interaction regions of the LHC. This allows for a more distributed radiation deposition in the insertion region magnets, which should allow their survival until they are replaced as part of the High Luminosity LHC upgrade from 2026-2030. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPM013
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPM013
|
Detaljnije
|
2026-01-21
06:33 |
Fully experiment request driven beta* and separation luminosity levelling at the LHC
/ Hostettler, Michi (CERN) ; Calia, Andrea (CERN) ; Jacquet, Delphine (CERN)
During the third run period (2022-2026) of the CERN Large Hadron Collider (LHC), as well as for the future High-Luminosity LHC era, luminosity levelling is key to control the event pile-up in the experiments as well as the heat load to the cryogenic system of the superconducting magnets close to the interaction points. During 2024 proton physics operation, a new luminosity levelling scheme was introduced for the high-luminosity experiments, ATLAS and CMS. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) THPS047
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.THPS047
|
Detaljnije
|
2026-01-21
06:33 |
Damage potential and machine protection criticality of the FCC-ee beams
/ Hjelle, Ingrid (CERN ; Norwegian U. Sci. Tech.) ; Lechner, Anton (CERN) ; Piccini, Audrey (CERN) ; Wiesner, Christoph (CERN) ; Wollmann, Daniel (CERN) ; Carra, Federico (CERN) ; Pasquali, Michele (CERN ; U. Rome La Sapienza (main) ; INFN, Rome)
The lepton beams of the Future Circular Collider FCC-ee will store 17.5 MJ of energy per beam during Z mode operation. The damage potential of these beams is an essential input for the design of the machine protection system. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) MOPM023
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.MOPM023
|
Detaljnije
|
2026-01-21
06:33 |
Towards a High Luminosity LHC with even higher performance
/ Tomas, Rogelio (CERN) ; Fornara, Andrea (CERN) ; Salvant, Benoit (CERN) ; Lindstrom, Bjorn (CERN) ; Zannini, Carlo (CERN) ; Antuono, Chiara (CERN) ; Hernalsteens, Cédric (CERN) ; Wollmann, Daniel (CERN) ; Maclean, Ewen (CERN) ; Cerutti, Francesco (CERN) et al.
The High Luminosity LHC (HL-LHC) project aims to increase the integrated luminosity of CERN’s Large Hadron Collider (LHC) over its exploitation era up to the end of 2041 by an order of magnitude compared to the initial LHC design value. This requires doubling the bunch intensity along with several other important changes to the LHC configuration. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) MOPM008
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.MOPM008
|
Detaljnije
|
2026-01-21
06:33 |
A muon beam facility at CERN to demonstrate muon ionisation cooling
/ Schulte, D (CERN) ; Losito, R (CERN) ; Fernandez, J Roncal (CERN) ; Taylor, R (CERN) ; Jurj, P B (Imperial Coll., London) ; Rogers, C (Rutherford) ; Krzempek, L K (ESRF, Grenoble) ; Rossi, L (Milan Bicocca U. ; INFN, Milan Bicocca ; LASA, Segrate) ; Statera, M (LASA, Segrate) ; Giove, D (LASA, Segrate) et al.
The International Muon Collider Collaboration (IMCC) has been formed following the 2020 European Strategy for Particle Physics Update, with the goal of studying the feasibility of a muon collider at a centre of mass energy of around 10 TeV. One of the most challenging sections of a muon collider is the initial cooling before acceleration, due to the necessity to apply intense magnetic and electric fields to reduce the 6D emittance of the muon beam by 5 orders of magnitude in a very short time, to cope with the limited lifetime of muons (2.2 μs at rest). [...]
2025 - 3 p.
- Published in : JACoW IPAC 2025 (2025) MOPS115
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.MOPS115
|
Detaljnije
|
2026-01-21
06:33 |
First prototype measurements with an electro-optical bunch profile monitor for FCC-ee
/ Reissig, Micha (KIT, Karlsruhe) ; Schloegelhofer, Andreas (CERN) ; Mueller, Anke-Susanne (KIT, Karlsruhe) ; Gilardi, Antonio (CERN) ; Haerer, Bastian (KIT, Karlsruhe) ; Pakuza, Collette (CERN) ; Bründermann, Erik (KIT, Karlsruhe) ; Niehues, Gudrun (KIT, Karlsruhe) ; Grimm, Leander (KIT, Karlsruhe) ; Korysko, Pierre (Oxford U.) et al.
The future circular electron-positron collider (FCC-ee) is designed for highest luminosity to enhance the precision of high-energy particle physics experiments, spanning energies from the Z pole to the $\text{t}\bar{\text{t}}$ threshold. As outlined in its conceptual design report, high-precision measurements of the longitudinal bunch profile are required across multiple operation modes, which presents key challenges for beam instrumentation. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) THPS079
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.THPS079
|
Detaljnije
|
2026-01-21
06:33 |
Detaljnije
|
|
|
|