CERN Accelerating science

All CERN Accelerators documents

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2018-07-17
04:14
Modeling and Measurements of Bunch Profiles at the LHC / Papadopoulou, S. (CERN) ; Antoniou, F. (CERN) ; Argyropoulos, T. (CERN) ; Hostettler, M. (CERN) ; Papaphilippou, Y. (CERN) ; Trad, G. (CERN)
At the LHC, the interplay between a series of effects (e.g. [...]
arXiv:1806.07317.
- 16 p.
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2018-07-17
04:14
Emittance reduction with variable bending magnet strengths: Analytical optics considerations / Papadopoulou, S. (CERN ; Crete U. ; Crete, Tech. U.) ; Antoniou, F. (CERN) ; Papaphilippou, Y. (CERN)
One of the main challenges of the lattice design of $e^+e^{{-}} $ synchrotrons, used as light sources or damping rings, is the minimization of the emittance. [...]
arXiv:1806.07318.
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2018-07-17
04:13
Design Development for the Beam Dump Facility Target Complex at CERN / Kershaw, K. (CERN) ; Grenard, J.-L (CERN) ; Calviani, M. (CERN) ; Ahdida, C. (CERN) ; Casolino, M. (CERN) ; Delavalle, S. (LeCroy, Oxford) ; Hounsome, D. (LeCroy, Oxford) ; Jacobsson, R. (CERN) ; Lamont, M. (CERN) ; Lopez Sola, E. (CERN) et al.
CERN has launched a study phase to evaluate the feasibility of a new high-intensity beam dump facility at the CERN Super Proton Synchrotron accelerator with the primary goal of exploring Hidden Sector models and searching for Light Dark Matter, but which also offers opportunities for other fixed target flavour physics programs such as rare tau lepton decays and tau neutrino studies. [...]
arXiv:1806.05920.
- 27 p.
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2018-07-16
20:11
Online Transverse Beam Instability Detection in the LHC. High Throughput Real-Time Parallel Data Analysis / Soderen, Martin
This thesis presents the ADT transverse instability detection system, the next generation of instability detection in the LHC at CERN, Geneva [...]
CERN-THESIS-2017-401 LIU-IDA/LITH-EX-A--17/053--SE. - 125 p.

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2018-07-16
18:42
Hit multiplicity approach to b-tagging in FCC-hh / Perez Codina, Estel (CERN) ; Roloff, Philipp Gerhard (CERN)
The FCC-hh project aims to study proton-proton collisions at $\sqrt{s}$=100 TeV. The ability to tag heavy flavour jets of high energy produced in those collisions will be crucial for many beyond the Standard Model searches such as Z' production. [...]
Geneva : CERN, 2018 Access to fulltext document: PDF;

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2018-07-13
04:46
Description of the luminosity evolution for the CERN LHC including dynamic aperture effects. Part I: the model / Giovannozzi, M. (CERN) ; Van Der Veken, F.F. (CERN)
In recent years, modelling the evolution of beam losses in circular proton machines starting from the evolution of the dynamic aperture has been the focus of intense research. [...]
arXiv:1806.03058.
- 31 p.
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2018-07-13
04:46
Description of the luminosity evolution for the CERN LHC including dynamic aperture effects. Part II: application to Run 1 data / Giovannozzi, M. (CERN) ; Van der Veken, Frederik F. (CERN)
In recent years, modelling the evolution of beam losses in circular proton machines starting from the concept of dynamic aperture its time evolution has been the focus of intense research. [...]
arXiv:1806.03059.
- 25 p.
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2018-07-10
06:07
Future Circular Collider Study (FCC) / Golling, Tobias (Geneva U.)
The status and plans for the Future Circular Collider (FCC) design study are presented. The ultimate goal, and the emphasis for the infrastructure, is a proton-proton machine operating at a center-of-mass energy of 100 TeV in a 100-km ring in the Geneva area, called FCC-hh. [...]
Gatchina : Kurchatov Institute, 2016 - 6 p. - Published in : , pp. 559-564 Fulltext: PDF;
In : 3rd Annual Large Hadron Collider Physics Conference, St. Petersburg, Russia, 31 Aug - 5 Sep 2015, pp.559-564

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2018-07-08
07:09
Luminosity measurement in 1994 with the STIC detector / Camporesi, T ; Obratzsov, V ; Paganoni, M ; Terranova, F ; Bigi, M ; Gouz, I ; Migliore, E ; Tome, B
DELPHI-97-8 PHYS 667.- 1997 Fulltext: PDF; External link: Fulltext

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2018-07-08
04:19
N-doped surfaces of superconducting niobium cavities as a disordered composite / Weingarten, Wolfgang (CERN)
The Q-factor of superconducting accelerating cavities can be substantially improved by a special heat treatment under N2 atmosphere (N-doping). Recent experiments at Fermi National Laboratory investigated the dependence of Q on the RF frequency and showed, unexpectedly, both an increase and a decrease with the RF field amplitude. [...]
arXiv:1708.02841.- 2018-05-15 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 3500504 Preprint: PDF;

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