Search Results - "V. Mascagna"
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A source of antihydrogen for in-flight hyperfine spectroscopy
Published in Nature communications (21-01-2014)“…Antihydrogen, a positron bound to an antiproton, is the simplest antiatom. Its counterpart—hydrogen—is one of the most precisely investigated and best…”
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2
Investigation on radiation generated by sub-GeV electrons in ultrashort silicon and germanium bent crystals
Published in The European physical journal. C, Particles and fields (01-04-2021)“…We report on the measurements of the spectra of gamma radiation generated by 855 MeV electrons in bent silicon and germanium crystals at MAMI (MAinzer…”
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3
Crystal-based pair production for a lepton collider positron source
Published in The European physical journal. C, Particles and fields (01-08-2022)“…An intense positron sources is a demanding element in the design of future lepton colliders. A crystal-based hybrid positron source could be an alternative to…”
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4
The ASACUSA antihydrogen and hydrogen program: results and prospects
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (28-03-2018)“…The goal of the ASACUSA-CUSP collaboration at the Antiproton Decelerator of CERN is to measure the ground-state hyperfine splitting of antihydrogen using an…”
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5
Measurement of the antiproton–nucleus annihilation cross-section at low energy
Published in Nuclear physics. A (01-02-2018)“…Systematic measurements of the annihilation cross sections of low energy antinucleons were performed at CERN in the 80's and 90's. However the antiproton data…”
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6
Synthesis of cold antihydrogen in a cusp trap
Published in Physical review letters (10-12-2010)“…We report here the first successful synthesis of cold antihydrogen atoms employing a cusp trap, which consists of a superconducting anti-Helmholtz coil and a…”
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7
Strong enhancement of electromagnetic shower development induced by high-energy photons in a thick oriented tungsten crystal
Published in The European physical journal. C, Particles and fields (01-01-2023)“…We have observed a significant enhancement in the energy deposition by 25– 100 GeV photons in a 1 cm thick tungsten crystal oriented along its ⟨ 111 ⟩ lattice…”
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Broad angular anisotropy of multiple scattering in a Si crystal
Published in The European physical journal. C, Particles and fields (2020)“…We observed reduction of multiple Coulomb scattering of 855 MeV electrons within a Si crystalline plate w.r.t. an amorphous plate with the same mass thickness…”
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9
Strong Reduction of the Effective Radiation Length in an Axially Oriented Scintillator Crystal
Published in Physical review letters (13-07-2018)“…We measured a considerable increase of the emitted radiation by 120 GeV/c electrons in an axially oriented lead tungstate scintillator crystal, if compared to…”
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10
Measurement of the principal quantum number distribution in a beam of antihydrogen atoms
Published in The European physical journal. D, Atomic, molecular, and optical physics (01-03-2021)“…The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in…”
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11
Limits on antiproton-nuclei annihilation cross sections at ∼125 keV
Published in Nuclear physics. A (01-05-2021)“…Some experimental limits on the annihilation cross sections σann of antiprotons on carbon, palladium, and platinum targets were determined at the previously…”
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12
Investigation on steering of ultrarelativistic e± beam through an axially oriented bent crystal
Published in The European physical journal. C, Particles and fields (01-03-2021)“…An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection…”
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13
Injection and capture of antiprotons in a Penning–Malmberg trap using a drift tube accelerator and degrader foil
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-08-2024)“…The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN,…”
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14
Direct detection of antihydrogen atoms using a BGO crystal
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-12-2016)“…The ASACUSA collaboration has developed a detector consisting of a large size BGO crystal to detect an atomic antihydrogen beam, and performed the direct…”
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15
Shashlik Calorimeters With Embedded SiPMs for Longitudinal Segmentation
Published in IEEE transactions on nuclear science (01-04-2017)“…Effective longitudinal segmentation of shashlik calorimeters can be achieved taking advantage of the compactness and reliability of silicon photomultipliers…”
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16
Beam charge asymmetries for deeply virtual Compton scattering off the proton
Published in The European physical journal. A, Hadrons and nuclei (01-06-2021)“…The unpolarized and polarized Beam Charge Asymmetries (BCAs) of the e → ± p → e ± p γ process off unpolarized hydrogen are discussed. The measurement of BCAs…”
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Light dark matter searches with positrons
Published in The European physical journal. A, Hadrons and nuclei (01-08-2021)“…We discuss two complementary strategies to search for light dark matter (LDM) exploiting the positron beam possibly available in the future at Jefferson…”
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Upgrade of ASACUSA’s antihydrogen detector
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-01-2023)“…The goal of the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) CUSP experiment at CERN’s Antiproton Decelerator is to measure the ground…”
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Polysiloxane-based scintillators for shashlik calorimeters
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-03-2020)“…We present the first application of polysiloxane-based scintillators as active medium in a shashlik sampling calorimeter. These results were obtained from a…”
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Hyperfine spectroscopy of hydrogen and antihydrogen in ASACUSA
Published in Hyperfine interactions (2019)“…The ASACUSA collaboration at the Antiproton Decelerator of CERN aims at a precise measurement of the antihydrogen ground-state hyperfine structure as a test of…”
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