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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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2021-01-14
06:01
Upgrade of the ALICE inner tracking system: Construction and commissioning / Fantoni, Alessandra (Frascati) /ALICE Collaboration
ALICE (A Large Ion Collider Experiment) is the CERN LHC experiment optimized for the study of the strongly interacting matter produced in heavy-ion collisions, in particular the characterization of the quark-gluon plasma. After the successful operation of the experiment during the first two runs of the LHC, the ALICE collaboration is currently working on a major upgrade of its detectors, to be installed during the 2019–2020 Long Shutdown (LS2). [...]
2020 - 7 p. - Published in : Phys. Scr. 95 (2020) 084011 Fulltext: PDF;
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.084011

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2021-01-14
06:01
Two-Particle Transverse Momentum Correlations in Pb–Pb Collisions at $\sqrt {{{{\text{s}}}_{{{\text{NN}}}}}} = 2.76$ TeV / Gonzalez, V (Madrid U. ; Darmstadt, GSI) /ALICE Collaboration
Two-particle correlations are powerful tools for studying the medium produced in heavy-ion collisions. In particular, two-particle transverse momentum correlations enable measurements of the collision dynamics sensitive to momentum currents. [...]
2020 - 5 p. - Published in : Phys. Part. Nucl. 51 (2020) 340-344 Fulltext: PDF;
In : 14th Workshop on Particle Correlations and Femtoscopy, Dubna, Russian Federation, 3 - 7 June 2019, pp.340-344

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2021-01-14
06:01
Convolutional Neural Network for Centrality Determination in Fixed Target Experiments / Seryakov, A (St. Petersburg State U.) ; Uzhva, D (St. Petersburg State U.)
Fixed target experiments have an unique possibility to measure centrality of colliding systems by hadronic calorimeters on the beam line. This is usually achieved by the detection of all forward nucleon spectators and accomplishes fluctuation and correlation measures with lower biases than in collider experiments. [...]
2020 - 6 p. - Published in : Phys. Part. Nucl. 51 (2020) 331-336 Fulltext: PDF;
In : 14th Workshop on Particle Correlations and Femtoscopy, Dubna, Russian Federation, 3 - 7 June 2019, pp.331-336

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