CERN Accelerating science

All CERN Accelerators documents

Announcement
This new collection aggregates CERN accelerator-related documents on CDS. It will continuously be enriched and improved in the near future.
Latest additions:
2019-12-05
11:58
MD3263: Beam-Beam Long-Range Cmmpensation using DC Wires in the LHC / Poyet, Axel (Universite Grenoble-Alpes (FR)) ; Fartoukh, Stephane (CERN) ; Fuster Martinez, Nuria (CERN) ; Karastathis, Nikos (CERN) ; Papaphilippou, Yannis (CERN) ; Pojer, Mirko (CERN) ; Redaelli, Stefano (CERN) ; Rossi, Adriana (CERN) ; Skoufaris, Kyriacos (University of Crete (GR)) ; Solfaroli Camillocci, Matteo (CERN) et al.
This note summarizes the experimental results obtained during the 2018 LHC Machine Development program during the measurements campaign of the Beam-Beam Long-Range compensation using DC wires (MD3263). [...]
CERN-ACC-NOTE-2019-0053.
- 2019. - 25 p.

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2019-12-05
10:43
MD2202: compensating long-range beam-beam effectin the LHC using DC wires / Sterbini, Guido (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Cattenoz, Gregory (CERN) ; Effinger, Ewald (CERN) ; Fartoukh, Stephane (CERN) et al.
his note summarizes the program of the LHC Machine Development to assess the potential and limits of the long-range beam-beam compensators held in 2017 (MD2202) [...]
CERN-ACC-NOTE-2019-0052.
- 2019. - 52 p.
Full text

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2019-12-04
14:31
Initial longitudinal diagnostics for ELENA’s commissioning / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring has undergone its second full year of beam commissioning in 2018. [...]
CERN-ACC-NOTE-2019-0051.
- 2019.

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2019-12-04
14:27
New LLRF capabilities and beam results for the second year of ELENA’s commissioning / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring underwent its second full year of beam commissioning in 2018. [...]
CERN-ACC-NOTE-2019-0050.
- 2019.
Full text

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2019-12-02
16:42
Top quark mass measurement in radiative events at electron-positron colliders / Boronat, Marca (Univ. of Valencia and CSIC (ES)) ; Fullana Torregrosa, Esteban (Univ. of Valencia and CSIC (ES)) ; Fuster Verdu, Juan (Univ. of Valencia and CSIC (ES)) ; Gomis Lopez, Pablo (Univ. of Valencia and CSIC (ES)) ; Vos, Marcel (Univ. of Valencia and CSIC (ES)) ; Hoang, A H (University of Vienna, Faculty of Physics and Erwin Schrodinger International Institute for Mathematical Physics) ; Widl, A (University of Vienna, Faculty of Physics) ; Mateu, V (Departmento de Fisica Fundamental e IUFFyM, Universidad de Salamanca and Instituto de Fisica Teorica UAM-CSIC)
In this letter, the potential of linear e+e− colliders to measure the top quark mass in a suitable short-distance scheme in radiative events is evaluated. We present a calculation of the differential cross section for production of a top quark pair in association with an energetic photon from initial state radiation, as a function of the invariant mass of the tt ̄system [...]
CLICdp-Pub-2019-005.- Geneva : CERN, 2019 - 12. Fulltext: PDF;

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2019-11-29
07:03
The ENUBET neutrino beam / Terranova, Francesco (INFN, Milan ; Milan Bicocca U.) ; Acerbi, F (Fond. Bruno Kessler, Trento ; TIFPA-INFN, Trento) ; Ballerini, G (INFN, Milan Bicocca ; Insubria U., Como) ; Bonesini, M (INFN, Milan Bicocca) ; Brizzolari, C (INFN, Milan Bicocca ; Insubria U., Como) ; Brunetti, G (INFN, Padua) ; Calviani, M (CERN) ; Carturan, S (INFN, Padua ; Padua U.) ; Catanesi, M G (INFN, Bari) ; Cecchini, S (INFN, Bologna) et al.
ENUBET has been designed to monitor lepton production in the decay tunnel of neutrino beams at single particle level and to provide a 1% measurement of the neutrino flux at source. In particular, the three body semileptonic decay of kaons monitored by large angle positron production offers a fully controlled $\nu_e$ source at the GeV scale for a new generation of short baseline experiments. [...]
SISSA, 2019 - 4 p. - Published in : PoS ICHEP2018 (2019) 239 Fulltext from publisher: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Korea, 4 - 11 Jul 2018, pp.239

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2019-11-27
10:26
Barrier bucket and transversely split beams for loss-free multi-turn extraction in synchrotrons / Vadai, M (CERN ; Queen Mary, U. of London (main)) ; Alomainy, A (Queen Mary, U. of London (main)) ; Damerau, H (CERN) ; Gilardoni, S (CERN) ; Giovannozzi, M (CERN) ; Huschauer, A (CERN)
A special radio-frequency manipulation has been studied and successfully implemented at the CERN Proton Synchrotron for the first time. This technique aims at depleting a well-defined fraction of a continuous longitudinal beam distribution by creating a so-called barrier bucket. [...]
2019 - 7 p. - Published in : EPL 128 (2019) 14002 Fulltext: PDF;

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2019-11-27
10:26
Shaping trailing beams for beam loading via beam-induced-ionization injection at FACET / Amorim, Lígia Diana (SUNY, Stony Brook) ; Vafaei-Najafabadi, Navid (SUNY, Stony Brook) ; Emma, Claudio (SLAC) ; Clarke, Christine I (SLAC) ; Green, Selina Z (SLAC) ; Storey, Doug (SLAC) ; White, Glen (SLAC) ; O'Shea, Brendan (SLAC) ; Hogan, Mark J (SLAC) ; Yakimenko, Vitaly (SLAC) et al.
Recent progress in plasma based accelerator technology has demonstrated its ability to deliver high energy (GeV) beams in compact structures (centimeter to meter scale plasmas). Current developments of that technology are oriented toward producing beams with quality and energy spread comparable to those obtained using standard accelerating structures. [...]
2019 - 10 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 111303

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2019-11-27
10:26
Beam steering performance of bent silicon crystals irradiated with high-intensity and high-energy protons / Scandale, W (CERN) ; Calviani, M (CERN) ; D'Andrea, M (CERN) ; Esposito, L S (CERN) ; Garattini, Marco (CERN ; Imperial Coll., London) ; Gilardoni, S (CERN) ; Montesano, S (CERN) ; Natochii, A (CERN ; Orsay, LAL ; Taras Shevchenko U.) ; Rossi, R (CERN) ; Smirnov, G I (CERN ; Dubna, JINR) et al.
Beam steering performance of bent silicon crystals irradiated with high-intensity and high-energy protons has been studied. In particular, crystals of the type used for collimation and extraction purposes in the Large Hadron Collider and the Super Proton Synchrotron at CERN have been irradiated at the HiRadMat CERN facility with $2.5 \times 10^{13}$ 440 GeV/c protons, with a pulse length of 7.2 $\upmu $s. [...]
2019 - 5 p. - Published in : Eur. Phys. J. C 79 (2019) 933 Fulltext from SCOAP3: PDF;

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2019-11-27
10:26
HL-LHC industrialization and procurement. Lessons learnt / Bejar Alonso, Isabel (CERN)
The High-Luminosity LHC (LH-LHC) is a major upgrade of the Large Hadron Collider (LHC) that aims increasing the number of proton-proton collisions, boosting our chances of coming across new and rare physics phenomena. In order to do that, several new technologies will be introduced and heavy civil engineering work is required. [...]
SISSA, 2019 - 6 p. - Published in : PoS ICHEP2018 (2019) 391 Fulltext from publisher: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Korea, 4 - 11 Jul 2018, pp.391

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