CERN Accelerating science

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2017-08-14
14:59
Numerical simulations of energy deposition caused by 50 MeV—50 TeV proton beams in copper and graphite targets / Nie, Y (CERN) ; Schmidt, R (CERN) ; Chetvertkova, V (GSI Helmholtzzentrum für Schwerionenforschung) ; Rosell-Tarrago, G (University of Barcelona) ; Burkart, F (CERN) ; Wollmann, D (CERN)
The conceptual design of the Future Circular Collider (FCC) is being carried out actively in an international collaboration hosted by CERN, for the post–Large Hadron Collider (LHC) era. The target center-of-mass energy of proton-proton collisions for the FCC is 100 TeV, nearly an order of magnitude higher than for LHC. [...]
CERN-ACC-2017-0054.- Geneva : CERN, 2017 - 17 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 20 (2017) 081001 (2017) Fulltext: PDF;

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2017-08-02
11:58
Investigation of collimator materials for the High Luminosity Large Hadron Collider / Quaranta, Elena
This PhD thesis work has been carried out at the European Organisation for Nuclear Research (CERN), Geneva, Switzerland), in the framework of the High Luminosity (HL) upgrade of the Large Hadron Collider (LHC) [...]
CERN-THESIS-2017-101 - 176 p.

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2017-07-13
18:04
Updated parameters for HL-LHC aperture calculations for proton beams / Bruce, Roderik (CERN) ; Bracco, Chiara (CERN) ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Redaelli, Stefano (CERN) ; Tomas Garcia, Rogelio (CERN) ; Velotti, Francesco Maria (CERN) ; Wenninger, Jorg (CERN)
During the accelerator design, it is important to have a reliable way of estimating the available aperture, in order to ensure a sufficient beam clearing and avoid potentially limiting beam losses on the aperture. [...]
CERN-ACC-2017-0051.
- 2017. - 14 p.
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2017-07-05
11:38
LHC Availability 2017: Restart to Technical Stop 1 / Todd, Benjamin (CERN) ; Ponce, Laurette (CERN) ; Apollonio, Andrea (CERN)
This document summarises the LHC machine availability for the period of Restart to Technical Stop 1 (TS1) in 2017. [...]
CERN-ACC-NOTE-2017-0046.
- 2017. - 15 p.
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2017-06-28
14:25
A Search for Long Lived Neutral Particles Decaying to Hadronic States in Proton-Proton Collisions in the ATLAS Detector at $\sqrt{s} = 8$ TeV and $\sqrt{s} = 13$ TeV at the LHC / Rosten, Rachel Christine
A search for the decay of a heavy scalar boson into pairs of long-lived neutral particles in $20.3~\rm{fb}^{-1}$ of proton proton collisions at $\sqrt{s}=8$ TeV and $3.2~\rm{fb}^{-1}$ at $\sqrt{s}=13$ TeV in the ATLAS detector is presented [...]
CERN-THESIS-2017-075 -

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2017-06-20
09:57
Limitations due to strong head-on beam-beam interactions (MD 1434) / Buffat, Xavier (CERN) ; Furuseth, Sondre Vik ; Iadarola, Giovanni (CERN) ; Papadopoulou, Parthena Stefania (University of Crete (GR)) ; Papaphilippou, Yannis (CERN) ; Pellegrini, Dario (CERN) ; Pojer, Mirko (CERN) ; Crockford, Guy (CERN) ; Salvachua Ferrando, Belen Maria (CERN) ; Trad, Georges (CERN) et al.
The results of an experiment aiming at probing the limitations due to strong head on beam-beam interactions are reported. [...]
CERN-ACC-NOTE-2017-0044.
- 2017. - 11 p.
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2017-06-17
07:13
Flexibility of LHC Optics for Forward Proton Measurements / Cieśla, Krzysztof (Cracow Tech. U.) ; Staszewski, Rafal (Cracow, INP)
The geometric acceptance of the ATLAS Forward Proton detectors is studied. The elements of the LHC magnetic lattice that are most important for the acceptance are identified. [...]
2016 - 6 p. - Published in : Acta Phys. Pol. B 47 (2016) 1633 Fulltext: PDF;
In : 22th Cracow EPIPHANY Conference on the Physics in LHC Run2, Cracow, Poland, 7 - 9 Jan 2016, pp.1633

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2017-06-13
13:59
FESA class for off-momentum lossmaps and decomposition of beam losses at LHC / Wyszynski, Michal Jakub (Warsaw University of Technology (PL)) ; Jackson, Stephen (CERN) ; Pojer, Mirko (CERN) ; Salvachua Ferrando, Belen Maria (CERN) ; Valentino, Gianluca (University of Malta (MT))
The project consisted of two main parts. [...]
CERN-ACC-NOTE-2017-0043.
- 2016. - 24 p.
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2017-05-29
06:05
Overview of the Large Hadron Collider and of the ATLAS and CMS experiments / Nisati, Aleandro (INFN, Rome) ; Sharma, Vivek (UC, San Diego)
The Large Hadron Collider is the most powerful particle accelerator ever built. It has allowed the discovery of a Higgs boson with mass near 125 GeV in 2012 by the ATLAS and CMS experiments. [...]
2016 - 24 p. - Published in : 10.1142/9789814425452_0004

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2017-05-27
11:22
Development and Optimisation of the SPS and LHC beam diagnostics based on Synchrotron Radiation monitors / Trad, Georges
Measuring the beam transverse emittance is fundamental in every accelerator, in particular for colliders, where its precise determination is essential to maximize the luminosity and thus the performance of the colliding beams.
 Synchrotron Radiation (SR) is a versatile tool for non-destructive bea [...]
CERN-THESIS-2014-390 - 232 p.

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