CERN Accelerating science

Published Articles

Darreres entrades:
2017-04-26
06:55
CERN Proton Synchrotron booster space charge simulations with a realistic model for alignment and field errors / Forte, V (CERN ; U. Blaise Pascal, Clermont-Ferrand) ; Benedetto, E (CERN) ; McAteer, M (CERN)
The CERN Proton Synchrotron booster (PSB) is one of the machines of the LHC injector chain which will be upgraded within the LHC Injectors Upgrade (LIU) project. The injection energy of the PSB will be increased to 160 MeV in order to mitigate direct space charge effects, considered to be the main performance limitation, aiming to double the brightness for the LHC beams. [...]
2016 - 12 p. - Published in : Phys. Rev. Accel. Beams 19 (2016) 124202 Fulltext: PDF;

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2017-04-26
06:55
Diamond Pixel Detectors and 3D Diamond Devices / Venturi, Nicola (Toronto U.) /RD42
Results from detectors of poly-crystalline chemical vapour deposited (pCVD) diamond are presented. These include the first analysis of data of the ATLAS Diamond Beam Monitor (DBM). [...]
2016 - Published in : J. Instrum. 11 (2016) C12062
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2016), Sestri Levante, Italy, 5 - 9 Sep 2016, pp.C12062

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2017-04-26
06:54
Decay of the $N=126, ^{213}$Fr nucleus / Pragati, (IIT, Roorkee) ; Deo, A Y (IIT, Roorkee) ; Podolyák, Zs (Surrey U) ; Walker, P M (Surrey U) ; Algora, A (Valencia U., IFIC) ; Rubio, B (Valencia U., IFIC) ; Agramunt, J (Valencia U., IFIC) ; Fraile, L M (Madrid U.) ; Al-Dahan, N (Surrey U.) ; Alkhomashi, N (Surrey U.) et al.
γ rays following the EC/β+ and α decay of the $N = 126, ^{213}$Fr nucleus have been observed at the CERN isotope separator on-line (ISOLDE) facility with the help of γ-ray and conversion-electron spectroscopy. These γ rays establish several hitherto unknown excited states in $^{213}$Rn. [...]
2016 - 8 p. - Published in : Phys. Rev. B C 94 (2016) 064316

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2017-04-26
06:54
Commissioning and first results of the NA62 RICH / Lenti, Massimo (INFN, Florence) /NA62 RICH Working
The NA62 experiment at CERN has been constructed to measure the ultra rare charged kaon decay into a charged pion and two neutrinos with a 10% uncertainty. The main background is the charged kaon decay into a muon and a neutrino which is suppressed by kinematic tools using a magnetic spectrometer and by the different stopping power of muons and pions in the calorimeters. [...]
2016 - Published in : J. Instrum. 11 (2016) C12012

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2017-04-26
06:54
Projects for ultra-high-energy circular colliders at CERN / Bogomyagkov, A V (Novosibirsk, IYF) ; Koop, I A (Novosibirsk, IYF) ; Levichev, E B (Novosibirsk, IYF) ; Piminov, P A (Novosibirsk, IYF) ; Sinyatkin, S V (Novosibirsk, IYF) ; Shatilov, D N (Novosibirsk, IYF) ; Benedict, M (CERN) ; Oide, K (KEK, Tsukuba) ; Zimmermann, F (CERN)
Within the Future Circular Collider (FCC) design study launched at CERN in 2014, it is envisaged to construct hadron (FCC-hh) and lepton (FCC-ee) ultra-high-energy machines aimed to replace the LHC upon the conclusion of its research program. The Budker Institute of Nuclear Physics is actively involved in the development of the FCC-ee electron–positron collider. [...]
2016 - 6 p. - Published in : Phys. Part. Nucl. Lett. 13 (2016) 870-875 External link: Fulltext

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2017-04-26
06:54
Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station / Aguilar, M (Madrid, CIEMAT) ; Ali Cavasonza, L (JARA, Aachen) ; Alpat, B (INFN, Perugia) ; Ambrosi, G (INFN, Perugia) ; Arruda, L (LIP, Lisbon) ; Attig, N (Julich, NIC ; Unlisted, DE) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (JARA, Aachen) ; Barao, F (LIP, Lisbon) et al. /AMS
Knowledge of the rigidity dependence of the boron to carbon flux ratio (B/C) is important in understanding the propagation of cosmic rays. The precise measurement of the B/C ratio from 1.9 GV to 2.6 TV, based on 2.3 million boron and 8.3 million carbon nuclei collected by AMS during the first 5 years of operation, is presented. [...]
2016 - 8 p. - Published in : Phys. Rev. Lett. 117 (2016) 231102 Fulltext: PDF;

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2017-04-26
06:54
Low-energy Coulomb excitation of $^{96,98}$Sr beams / Clément, E (GANIL ; CERN) ; Zielińska, M (IRFU, Saclay ; Warsaw U., Heavy Ion Lab) ; Péru, S (CEA DAM) ; Goutte, H (IRFU, Saclay) ; Hilaire, S (CEA DAM) ; Görgen, A (Oslo U.) ; Korten, W (IRFU, Saclay) ; Doherty, D T (IRFU, Saclay ; York U., England) ; Bastin, B (GANIL) ; Bauer, C (Darmstadt, Tech. U.) et al.
The structure of neutron-rich $^{96,98}$Sr nuclei was investigated by low-energy safe Coulomb excitation of radioactive beams at the REX-ISOLDE facility, CERN, with the MINIBALL spectrometer. A rich set of transitional and diagonal E2 matrix elements, including those for non-yrast structures, has been extracted from the differential Coulomb-excitation cross sections. [...]
2016 - 17 p. - Published in : Phys. Rev. B C 94 (2016) 054326

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2017-04-26
06:54
High-sensitivity study of levels in $^{30}Al$ following β decay of $^{30}Mg$ / Olaizola, B (UCM, Madrid, Dept. Phys.) ; Mach, H (UCM, Madrid, Dept. Phys.) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Benito, J (UCM, Madrid, Dept. Phys.) ; Borge, M J G (CSIC, Madrid) ; Boutami, R (UCM, Madrid, Dept. Phys.) ; Butler, P A (Liverpool U.) ; Dlouhy, Z (Rez, Nucl. Phys. Inst.) ; Fynbo, H O U (Aarhus U.) ; Hoff, P (Oslo U.) et al.
γ-ray and fast-timing spectroscopy were used to study levels in Al30 populated following the β− decay of Mg30. Five new transitions and three new levels were located in Al30. [...]
2016 - 7 p. - Published in : Phys. Rev. B C 94 (2016) 054318

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2017-04-26
06:54
Collective 2$^{+1}$ excitations in$^{206}$Po and$^{208,210}$Rn / Grahn, T (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Pakarinen, J (Jyvaskyla U. ; Helsinki Inst. of Phys. ; CERN) ; Jokiniemi, L (Jyvaskyla U.) ; Albers, M (Cologne U.) ; Auranen, K (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Bauer, C (Darmstadt, Tech. Hochsch.) ; Bernards, C (Yale U.) ; Blazhev, A (Cologne U.) ; Butler, P A (Liverpool U.) ; Bönig, S (Darmstadt, Tech. Hochsch.) et al.
In the present study, $B(E2, 2^{+1}\rightarrow 0^{+1})$ values have been measured in the$^{208,210}$Rn and$^{206}$Po nuclei through Coulomb excitation of re-accelerated radioactive beams in inverse kinematics at CERN-ISOLDE. These nuclei have been proposed to lie in, or at the boundary of the region where the seniority scheme should persist. [...]
2016 - Published in : Eur. Phys. J. A 52 (2016) 340

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2017-04-26
06:54
High energy density physics effects predicted in simulations of the CERN HiRadMat beam–target interaction experiments / Tahir, N A (Darmstadt, GSI) ; Burkart, F (CERN) ; Schmidt, R (CERN) ; Shutov, A (IPCP, Chernogolovka) ; Wollmann, D (CERN) ; Piriz, A R (Castilla-La Mancha U.)
Experiments have been done at the CERN HiRadMat (High Radiation to Materials) facility in which large cylindrical copper targets were irradiated with 440 GeV proton beam generated by the Super Proton Synchrotron (SPS). The primary purpose of these experiments was to confirm the existence of hydrodynamic tunneling of ultra-relativistic protons and their hadronic shower in solid materials, that was predicted by previous numerical simulations. [...]
2016 - 8 p. - Published in : High Energy Dens. Phys. 21 (2016) 27-34

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