CERN Accelerating science

CERN Published Articles

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2021-01-19
06:00
Investigation of radiation formation (plasmoid) in the air environment by radar method / Fadeenko, V B (St. Petersburg Polytechnic Inst. ; GRANIT, St. Petersburg) ; Fadeenko, I V (St. Petersburg Polytechnic Inst. ; GRANIT, St. Petersburg) ; Vasiliev, D A (GRANIT, St. Petersburg) ; Davydov, V V (St. Petersburg Polytechnic Inst. ; Unlisted, RU) ; Rud, V Yu (Unlisted, RU ; Ioffe Phys. Tech. Inst.)
The expediency of using the radar method for detecting radiation contamination at long distances is substantiated in this article. The design of a radar for the detecting of small radioactive formations in the air at the long distances is developed. [...]
2020 - 6 p. - Published in : J. Phys. : Conf. Ser. 1697 (2020) 012057 Fultext: PDF;

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2021-01-19
06:00
Investigation of the local environment of SnO$_{2}$ in an applied magnetic field / Schell, J (CERN ; U. Duisburg-Essen) ; Dang, T T (U. Duisburg-Essen ; Bonn U., HISKP) ; Zyabkin, D V (Ilmenau Tech. U. ; Palacky U.) ; Mansano, R D (Sao Paulo U.) ; Gaertner, D (Munster U.) ; Carbonari, A W (IPEN, Sao Paulo)
This paper presents the results of time-differential perturbed gamma–gamma angular correlation measurements of SnO$_{2}$ thin films carried out in an applied magnetic field. The measurements were performed upon the implantation of Fe at 80 keV and $^{111}$In($^{111}$Cd) at 160 keV. [...]
2020 - Published in : Physica B: Physics of Condensed Matter 586 (2020) 412120 Fulltext: PDF;

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2021-01-19
06:00
Anisotropic flow measured in Pb-Pb collisions with the NA49 and NA61/SHINE experiments at CERN SPS / Golosov, Oleg (Moscow Phys. Eng. Inst.) ; Klochkov, Viktor (Darmstadt, GSI ; Frankfurt U.) ; Kashirin, Evgeny (Moscow Phys. Eng. Inst.) ; Selyuzhenkov, Ilya (Moscow Phys. Eng. Inst. ; Darmstadt, GSI)
Results are presented for directed flow v 1 of negatively charged pions measured relative to the spectator plane in Pb+Pb collisions at the beam energy 40A GeV recorded by the NA49 experiment at CERN. The measurements were performed as a function of rapidity and transverse momentum in two classes of collision centrality. [...]
2019 - 6 p. - Published in : J. Phys. : Conf. Ser. 1390 (2019) 012014
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012014

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2021-01-15
06:31
Diffractive shadowing of coherent polarization radiation / Curcio, A (CERN) ; Bergamaschi, M (CERN) ; Corsini, R (CERN) ; Gamba, D ; Farabolini, W (CERN) ; Kieffer, R (CERN) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Dolci, V (U. Rome La Sapienza (main) ; INFN, Rome) ; Petrarca, M (U. Rome La Sapienza (main) ; INFN, Rome) et al.
We report on the study of shadowing of electromagnetic fields radiated in the Terahertz (THz) region from two consecutive sources of coherent diffraction and transition radiation. In these conditions, the formation length is predicted to be $\leq$ 100 m, and shadowing effects should result in an almost complete suppression of radiated fields within distances of the order of tens of centimeters. [...]
2021 - Published in : Phys. Lett. A 391 (2021) 127135

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2021-01-15
06:31
Multiferroic bismuth ferrite: Perturbed angular correlation studies on its ferroic $\alpha$-$\beta$ phase transition / Marschick, G (Vienna, Tech. U. ; CERN) ; Schell, J (CERN ; U. Duisburg-Essen) ; Stöger, B (Vienna, Tech. U.) ; Gonçalves, J N (Aveiro U.) ; Karabasov, M O (U. Duisburg-Essen) ; Zyabkin, D (Ilmenau Tech. U.) ; Welker, A (CERN) ; Escobar C , M (U. Duisburg-Essen) ; Gärtner, D (Munster U.) ; Efe, I (Zurich, ETH) et al.
Work of numerous research groups has shown different outcomes of studies of the transition from the ferroelectric $\alpha$-phase to the high temperature $\beta$-phase of the multiferroic, magnetoelectric perovskite Bismuth Ferrite (BiFeO$_{3}$ or BFO). Using the perturbed angular correlation (PAC) method with $^{111m}$Cd as the probe nucleus, the $\alpha$ to $\beta$ phase transition was characterized. [...]
2020 - 11 p. - Published in : Phys. Rev. B 102 (2020) 224110 Fulltext: PDF;

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2021-01-14
06:01
A high precision narrow-band neutrino beam: The ENUBET project / Torti, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Acerbi, F (Fond. Bruno Kessler, Povo ; TIFPA-INFN, Trento ; Trento U.) ; Berra, A (INFN, Milan Bicocca ; Insubria U., Como) ; Bonesini, M (INFN, Milan Bicocca) ; Branca, A (INFN, Padua ; U. Padua, Dept. Phys. Astron.) ; Brizzolari, C (INFN, Milan Bicocca ; Milan Bicocca U.) ; Brunetti, G (INFN, Padua) ; Calviani, M (CERN) ; Capelli, S (INFN, Milan Bicocca ; Insubria U., Como) ; Carturan, S (INFN, Padua ; INFN, Legnaro) et al.
The knowledge of the initial flux, energy and flavor of current neutrino beams is the main limitation for a precise measurement of neutrino cross-sections. The ENUBET ERC project is studying a facility based on a narrow-band neutrino beam capable of constraining the neutrino fluxes normalization through the monitoring of the associated charged leptons in an instrumented decay tunnel. [...]
2020 - 13 p. - Published in : Int. J. Mod. Phys. A 35 (2020) 2044017 Fulltext: PDF;
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.2044017

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2021-01-14
06:01
Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter / Fanì, M (CERN ; INFN, Genoa ; Genoa U.) ; Antonello, M (INFN, Milan ; Insubria U., Como) ; Belov, A (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Brusa, R S (Trento U. ; TIFPA-INFN, Trento) ; Caccia, M (INFN, Milan ; Insubria U., Como) ; Camper, A (CERN) ; Caravita, R (TIFPA-INFN, Trento) ; Castelli, F (INFN, Milan ; Milan U.) ; Comparat, D (LAC, Orsay) et al.
A main scientific goal of the experiment is the direct measurement of the Earth’s local gravitational acceleration g on antihydrogen. The Weak Equivalence Principle is a foundation of General Relativity. [...]
2020 - 9 p. - Published in : Phys. Scr. 95 (2020) 114001 Fulltext: PDF;
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.114001

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2021-01-14
06:01
Top quark physics with the ATLAS detector: recent highlights / Bruscino, N (INFN, Rome ; Rome U.) /ATLAS Collaboration
The top quark is the heaviest known fundamental particle. As it is the only quark that decays without hadronisation, it provides the unique opportunity to probe the properties of bare quarks at the Large Hadron Collider (LHC). [...]
2020 - 11 p. - Published in : Phys. Scr. 95 (2020) 094005 Fulltext: PDF;
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.094005

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2021-01-14
06:01
Searches for squarks and gluinos with the ATLAS detector / Todome, Kazuki (INFN, Bologna) /ATLAS Collaboration
Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This report summarizes recent results on searches for supersymmetric squarks and gluinos, including third-generation squarks produced directly or via decay of gluinos, using data collected by the ATLAS detector at the LHC. [...]
2020 - 14 p. - Published in : Phys. Scr. 95 (2020) 094003 Fulltext: PDF;
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.094003

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2021-01-14
06:01
Observation and measurements of vector-boson scattering with the ATLAS detector / Penc, Ondřej (Prague, Inst. Phys.) /ATLAS Collaboration
The scattering of electroweak bosons tests the gauge structure of the Standard Model and is sensitive to anomalous quartic gauge couplings. In this document, we present recent results on vector-boson scattering from the ATLAS experiment using proton-proton collisions with a center-of-mass energy of at the LHC. [...]
2020 - 9 p. - Published in : Phys. Scr. 95 (2020) 084014 Fulltext: PDF;
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.084014

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