CERN Accelerating science

CERN Preprints

Nyeste elementer:
2021-05-12
06:05
Signal Analysis for Automated Diagnostic Applied to LHC Cryogenics / Martensson, Kurt (CERN) ; Bradu, Benjamin (CERN) ; Ferlin, Gerard (CERN)
The operation of the LHC at CERN is highly dependent on its associated infrastructure to operate properly, such as its cryogenic system where many conditions must be fulfilled for superconducting magnets and RF cavities. [...]
2019. - 7 p.

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2021-05-12
04:01
On the adiabaticity of emittance exchange due to crossing of the coupling resonance / Bazzani, A. (Bologna U., Dept. Astron.) ; Capoani, F. (Bologna U., Dept. Astron. ; CERN) ; Giovannozzi, M. (CERN) ; Neishtadt, A.I. (Loughborough U. ; IMCS, Moscow)
In circular accelerators, crossing the linear coupling resonance induces the exchange of the transverse emittances, provided the process is adiabatic. [...]
arXiv:2105.04219.
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2021-05-12
04:01
A Carbon-Ion Superconducting Gantry and a Synchrotron Based on Canted Cosine Theta Magnets / Benedetto, E. (TERA, Novara ; CERN) ; Harbi, N. Al (TERA, Novara) ; Brouwer, L. (LBL, Berkeley) ; Tommasini, D. (CERN) ; Prestemon, S. (LBL, Berkeley) ; Riboni, P. (TERA, Novara) ; Amaldi, U. (TERA, Novara)
This article presents the conceptual design of a new compact superconducting gantry and synchrotron for Carbon ion therapy and focuses on the solutions (layout and optics) to make it compact. [...]
arXiv:2105.04205.
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2021-05-12
04:01
A Comparison of CPU and GPU implementations for the LHCb Experiment Run 3 Trigger / LHCb Collaboration
The LHCb experiment at CERN is undergoing an upgrade in preparation for the Run 3 data taking period of the LHC. [...]
arXiv:2105.04031 ; LHCb-DP-2021-003.
- 2021. - 27 p.
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2021-05-12
04:00
Exact WKB methods in $SU(2)$$N_f=1$ / Grassi, Alba (U. Geneva (main) ; CERN) ; Hao, Qianyu (Texas U.) ; Neitzke, Andrew (Yale U., Math. Dept.)
We study in detail the Schrödinger equation corresponding to the four dimensional $SU(2)$$\mathcal{N}=2$ SQCD theory with one flavour. [...]
arXiv:2105.03777 ; UTTG 03-2021 ; CERN-TH-2021-071.
- 63 p.
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2021-05-12
04:00
CMB from a Gauss-Bonnet-induced de Sitter fixed point / Kawai, Shinsuke (Sungkyunkwan U.) ; Kim, Jinsu (CERN)
In gravitational effective theories including higher curvature terms, cosmological solutions can have nontrivial de Sitter fixed points. [...]
arXiv:2105.04386 ; CERN-TH-2021-075.
- 12 p.
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2021-05-11
04:47
Dark Matter as dark dwarfs and other macroscopic objects: multiverse relics? / Gross, Christian (Pisa U.) ; Landini, Giacomo (Pisa U.) ; Strumia, Alessandro (Pisa U.) ; Teresi, Daniele (CERN)
First-order phase transitions can leave relic pockets of false vacua and their particles, that manifest as macroscopic Dark Matter. [...]
arXiv:2105.02840.
- 23 p.
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2021-05-11
04:47
An integrable spin chain with Hilbert space fragmentation and solvable real time dynamics / Pozsgay, Balázs (Zhongshan U.) ; Gombor, Tamás (Zhongshan U. ; Wigner RCP, Budapest) ; Hutsalyuk, Arthur (Zhongshan U.) ; Jiang, Yunfeng (CERN ; Southeast U., Nanjing) ; Pristyák, Levente (Zhongshan U. ; Budapest, Tech. U.) ; Vernier, Eric (Paris, LIMHP)
We revisit the so-called folded XXZ model, which was treated earlier by two independent research groups. [...]
arXiv:2105.02252.
- 30 p.
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2021-05-08
04:37
Superradiance of molecular nitrogen ions in strong laser fields / Wang, Q. (CERN ; Lanzhou U.) ; Ding, P. (Lanzhou U.) ; Wilkins, S.G. (MIT, Cambridge, CTP) ; Athanasakis-Kaklamanakis, M. (CERN ; Leuven U.) ; Zhang, Y. (Lanzhou U.) ; Liu, Z. (Lanzhou U.) ; Hu, B. (Lanzhou U.) ; .
We perform a combined theoretical and experimental investigation of the superradiance in the quantum coherent system generated by strong laser fields. [...]
arXiv:2105.00675.
- 11 p.
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2021-05-08
04:37
GPU Acceleration of 3D Agent-Based Biological Simulations / Hesam, Ahmad (Delft Tech. U.) ; Breitwieser, Lukas (CERN) ; Rademakers, Fons (CERN) ; Al-Ars, Zaid (Delft Tech. U.)
Researchers in biology are faced with the tough challenge of developing high-performance computer simulations of their increasingly complex agent-based models. [...]
arXiv:2105.00039.
- 8 p.
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