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Multiturn simulation of radiative Bhabha scattering in the equivalent photon approximation
/ Kicsiny, Peter (CERN ; EPFL-ISIC, Lausanne) ; Buffat, Xavier (CERN) ; Schulte, Daniel (CERN) ; Burkhardt, Helmut (CERN) ; Pieloni, Tatiana (EPFL-ISIC, Lausanne) ; Seidel, Mike (EPFL-ISIC, Lausanne)
In this paper, we present a Monte Carlo event generator for radiative Bhabha scattering, based on the method of equivalent photons, and optimized for multiturn tracking simulations in the xsuite framework. We demonstrate the accuracy of the event generator with successful benchmarks of the luminosity and event cross section against currently existing alternative tools. [...]
2024 - 15 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 091001
Fulltext: PDF;
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Impact of beam asymmetries at the Future Circular Collider <math display="inline"><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>-</mo></msup></math>
/ Kicsiny, Peter (CERN ; EPFL-ISIC, Lausanne) ; Buffat, Xavier (CERN) ; Nguyen, Khoi Le Nguyen (Cambridge U.) ; Pieloni, Tatiana (EPFL-ISIC, Lausanne) ; Seidel, Mike (EPFL-ISIC, Lausanne ; PSI, Villigen)
In this paper we present detailed simulations with asymmetric initial beam settings in the context of the proposed Future Circular Collider e+e- (FCC-ee) using the Xsuite framework. We compare simulated equilibrium bunch sizes and luminosities against an already existing analytical model, which shows remarkably good agreement for realistic small perturbations. [...]
arXiv:2410.02302.-
2024-12-01 - 13 p.
- Published in : Phys. Rev. Accel. Beams: 27 (2024) , no. 12, pp. 121001
Fulltext: Publication - PDF; 2410.02302 - PDF;
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Bhabha scattering model for multi-turn tracking simulations at the FCC-ee
/ Kicsiny, P (CERN ; Ecole Polytechnique, Lausanne) ; Buffat, X (CERN) ; Iadarola, G (CERN) ; Schulte, D (CERN) ; Pieloni, T (Ecole Polytechnique, Lausanne) ; Seidel, M (Ecole Polytechnique, Lausanne)
The measurement of Bhabha scattered leptons enables a direct estimate of luminosity in lepton colliders. Currently existing Monte Carlo event generators for this process are optimized for high precision detector background simulations. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL062
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL062
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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
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Strategy for Searching for a Dark Matter Sterile Neutrino
/ Boyarsky, Alexey (CERN ; EPFL-ISIC, Lausanne) ; Neronov, A. (ISDC, Versoix) ; Ruchayskiy, O. (IHES, Bures-sur-Yvette) ; Shaposhnikov, M. (EPFL-ISIC, Lausanne ; CERN) ; Tkachev, I. (CERN ; EPFL-ISIC, Lausanne)
We propose a strategy of how to look for dark matter (DM) particles possessing a radiative decay channel and derive constraints on their parameters from observations of X-rays from our own Galaxy and its dwarf satellites. When applied to the sterile neutrinos in keV mass range, it allows a significant improvement of restrictions to its parameters, as compared with previous works..
astro-ph/0603660; CERN-PH-TH-2006-005.-
Geneva : CERN, 2006 - 5 p.
- Published in : Phys. Rev. Lett. 97 (2006) 261302
APS Published version, local copy: PDF; Fulltext: 0603660 - PDF; arXiv:astro-ph_0603660 - PDF; External link: astro-ph/0603660 PDF
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Employing Beam-Gas Interaction Vertices for Transverse Profile Measurements
/ Rihl, Mariana (CERN) ; Alexopoulos, Andreas (CERN) ; Baglin, Vincent (CERN) ; Barschel, Colin (CERN) ; Bay, Aurelio (EPFL-ISIC, Lausanne) ; Blanc, Frederic (EPFL-ISIC, Lausanne) ; Bravin, Enrico (CERN) ; Bregliozzi, Giuseppe (CERN) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) et al.
Interactions of high-energy beam particles with residual gas offer a unique opportunity to measure the beam profile in a non-intrusive fashion. Such a method was successfully pioneered* at the LHCb experiment using a silicon microstrip vertex detector. [...]
CERN-ACC-2016-312.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-MOPMR027
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.MOPMR027
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Xsuite: an integrated beam physics simulation framework
/ Iadarola, Giovanni (CERN) ; Abramov, Andrey (CERN) ; Belanger, Philippe (TRIUMF) ; Buffat, Xavier (CERN) ; De Maria, Riccardo (CERN) ; Demetriadou, Despina (CERN) ; Deniau, Laurent (CERN) ; Di Croce, Davide (EPFL, Lausanne, FSL) ; Hermes, Pascal (CERN) ; Kicsiny, Peter (CERN) et al.
Xsuite is a newly developed modular simulation package combining in a single flexible and modern framework the capabilities of different tools developed at CERN in the past decades, notably Sixtrack, Sixtracklib, COMBI and PyHEADTAIL. The suite consists of a set of Python modules (Xobjects, Xpart, Xtrack, Xcoll, Xfields, Xdeps) that can be flexibly combined together and with other accelerator-specific and general-purpose python tools to study complex simulation scenarios. [...]
arXiv:2310.00317.-
2024-03-21 - 8 p.
- Published in : JACoW HB 2023 (2024) TUA2I1
Fulltext: document - PDF; 2310.00317 - PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.TUA2I1
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