CERN Accelerating science

CERN Published Articles

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2017-07-21
13:21
SiW ECAL for future $e^+e^-$ collider / Balagura, V. (Ecole Polytechnique) ; Bilokin, S. (Orsay, LAL) ; Bonis, J. (Orsay, LAL) ; Boudry, V. (Ecole Polytechnique) ; Brient, J.-C. (Ecole Polytechnique) ; Callier, S. (Ec. Polytech., OMEGA) ; Cheng, T. (Beijing, Inst. High Energy Phys.) ; Cornat, R. (Ecole Polytechnique ; Paris U., VI-VII) ; De La Taille, C. (Ec. Polytech., OMEGA) ; Doan, T.H. (Taiwan, Natl. Central U.) et al.
Calorimeters with silicon detectors have many unique features and are proposed for several world-leading experiments. We discuss the tests of the first three 18x18 cm$^2$ layers segmented into 1024 pixels of the technological prototype of the silicon-tungsten electromagnetic calorimeter for a future $e^+e^-$ collider. [...]
arXiv:1705.10838.- 2017-07-06 - 7 p. - Published in : JINST 12 (2017) C07013
Preprint: PDF;

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2017-07-21
06:52
MOS power transistor and ceramic thyratron for fast high voltage pulser / Beninati, A ; Busso, L ; Panzieri, D ; Tosello, F
A high reliability circuit has been developed in order to trigger a ceramic thyratron. The necessity of building a system highly protected from voltage and current glitches is due to the particular loads with are to be driven by the thyratron. [...]
1984 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., 222 (1984) 524-527

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2017-07-21
06:52
Simple Behaviour of Microscopic Systems / Fubini, S (CERN ; Turin U.) ; Molinari, A (Turin U.)
1992 - 8 p. - Published in : (1992) , pp. 229-237

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2017-07-21
06:52
Small-pads resistive micromegas / Alviggi, M (INFN, Naples ; Naples U.) ; Biglietti, M (INFN, Rome3) ; Canale, V (INFN, Naples ; Naples U.) ; Pietra, M Della (INFN, Naples ; Naples U.) ; Donato, C Di (INFN, Naples ; Naples, Inst. U. Navale) ; Franchino, S (Heidelberg U.) ; Iengo, P (CERN ; Zurich, ETH) ; Iodice, M (INFN, Rome3) ; Petrucci, F (INFN, Rome3 ; Rome III U.) ; Sekhniaidze, G (INFN, Naples) et al.
Resistive micromegas is now a mature technology for High Energy Physics experiments. In the ATLAS experiment at CERN 128 multilayers large size $(~2 m^2)$) micromegas chambers will be employed in the upgrade of the Muon Spectrometer (2019/2020), and will operate at moderate hit rate up to about $15 kHz/cm^2$ during the phase of High-Luminosity-LHC . [...]
2017 - 10 p. - Published in : JINST 12 (2017) C03077
In : 14th Topical Seminar on Innovative Particle and Radiation Detectors , Siena, Italy, 3 - 6 Oct 2016, pp.C03077

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2017-07-21
06:52
New experimental results for the 17 MeV particle created in $^8Be$ / Krasznahorkay, A J (Debrecen, Inst. Nucl. Res.) ; Csatlós, M (Debrecen, Inst. Nucl. Res.) ; Csige, L (Debrecen, Inst. Nucl. Res.) ; Gulyás, J (Debrecen, Inst. Nucl. Res.) ; Hunyadi, M (Debrecen, Inst. Nucl. Res.) ; Ketel, T J (NIKHEF, Amsterdam) ; Krasznahorkay, A (CERN ; MIT) ; Kuti, I (Debrecen, Inst. Nucl. Res.) ; Nagy, Á (Debrecen, Inst. Nucl. Res.) ; Nyakó, B M (Debrecen, Inst. Nucl. Res.) et al.
Electron-positron angular correlations were remeasured for the 17.6 MeV $(J^π = 1^+ \to 0^+)$ ground state transition in $^8Be$ using an improved setup compared to the one we used previously. Significant deviations from the internal pair creation was observed at large angles in the angular correlations, which supports that, in an intermediate step, a neutral isoscalar particle with a mass of 17.0 ±0.2(stat) ±0.5(sys) $MeV/c^2$ and $J^π = 1^+$ was created..
2017 - 7 p. - Published in : EPJ Web Conf. 137 (2017) 08010 Fulltext: PDF;
In : 12th Quark Confinement and the Hadron Spectrum, Thessaloniki, Greece, 29 Aug - 2 Sep 2016, pp.08010

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2017-07-21
06:52
Rare B Decays And Lepton Flavour Universality Tests at LHCb / Tolk, Siim (Cambridge U. ; CERN)
In the lepton sector the Standard Model incorporates both lepton-flavour and lepton-number universality. In a generic New Physics scenario this is not necessarily the case and these symmetries need to be experimentally tested. [...]
2017 - 4 p. - Published in : J. Phys. : Conf. Ser. 800 (2017) 012012
In : 2016 International Conference on Kaon Physics, Birmingham, United Kingdom, 14 - 17 Sep 2016, pp.012012

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2017-07-21
06:52
Electromagnetic Corrections to Hadronic Decays from Lattice QCD / Lubicz, V (Rome III U. ; INFN, Rome3) ; Martinelli, G (INFN, Rome3 ; INFN, Rome ; CERN) ; Sachrajda, C T (Southampton U.) ; Sanfilippo, F (Southampton U.) ; Simula, S (INFN, Rome2 ; Rome U., Tor Vergata) ; Tantalo, N (Unlisted)
A new method, recently introduced for the lattice calculation of electromagnetic and isospin corrections to weak decays [1], is discussed. Using this method, for the first time, the electromagnetic effects in the leptonic decay rates $π^− \to µ ^− \bar{ν}_µ$ and $K^− \to µ^− \bar{ν}_µ$ have been evaluated in lattice QCD. [...]
2017 - 6 p. - Published in : J. Phys. : Conf. Ser. 800 (2017) 012005
In : 2016 International Conference on Kaon Physics, Birmingham, United Kingdom, 14 - 17 Sep 2016, pp.012005

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2017-07-21
06:52
Versatile Link PLUS transceiver development / Soós, C (CERN) ; Détraz, S (CERN) ; Olanterä, L (CERN) ; Sigaud, C (CERN) ; Troska, J (CERN) ; Vasey, F (CERN) ; Zeiler, M (CERN ; Dublin City U.)
The Versatile Link PLUS project targets the phase II upgrades of the ATLAS and CMS experiments. It will develop a radiation resistant optical link, operating at up to 10 Gb/s in the upstream and up to 5 Gb/s in the downstream directions with a smaller footprint and higher channel count than its predecessor. [...]
2017 - 10 p. - Published in : JINST 12 (2017) C03068
In : Topical Workshop on Electronics for Particle Physics, Karlsruhe, Germany, 26 - 30 Sep 2016, pp.C03068

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2017-07-21
06:52
Mechanical Effects of the Nonuniform Current Distribution on HTS Coils for Accelerators Wound With REBCO Roebel Cable / Murtomaki, Jaakko S (Tampere U. of Tech.) ; van Nugteren, Jeroen (Twente U., Enschede) ; Kirby, Glyn (CERN) ; Rossi, Lucio (CERN) ; Ruuskanen, Janne (Tampere U. of Tech.) ; Stenvall, Antti (Tampere U. of Tech.)
Future high-energy accelerators will need very high magnetic fields in the range of 20 T. [...]
2017. - 5 p.

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2017-07-21
06:52
Optimization of Nb$_{3}$Sn Rutherford Cables Geometry for the High Luminosity LHC / Fleiter, Jerome (CERN) ; Ballarino, Amalia (CERN) ; Bonasia, Angelo (CERN) ; Bordini, Bernardo (CERN) ; Richter, David (CERN)
The quadrupole and dipole magnets for the LHC High Luminosity (HL-LHC) upgrade will be based on Nb3Sn Rutherford cables that operate at 1.9 K and experience magnetic fields of up to about 12 T. An important step in the design of these magnets is the development of the high aspect ratio Nb3Sn cables to achieve the nominal field with sufficient margin. [...]
2017 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4004305
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4004305

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