CERN Accelerating science

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1.
The EXTRA-BL4S experiment for the measurement of the energy and angular distributions of transition radiation X-rays / e EXTRA-BL4S Collaboration
We have designed and implemented an experiment to measure the angular distributions and the energy spectra of the transition radiation X-rays emitted by fast electrons and positrons crossing different radiators. Our experiment was selected among the proposals of the 2021 Beamline for Schools contest, a competition for high-school students organized every year by CERN and DESY, and was performed at the DESY II Test Beam facility area TB21, using a high-purity beam of electrons or positrons with momenta in the range from 1 to 6 GeV/c. [...]
arXiv:2301.11247.- 2023-04-12 - 19 p. - Published in : JINST 18 (2023) P04017 Fulltext: document - PDF; 2301.11247 - PDF;
2.
Cosmic-ray interactions with the Sun using the FLUKA code / Mazziotta, M.N. (INFN, Bari) ; De La Torre Luque, P. (INFN, Bari ; U. Bari (main)) ; Di Venere, L. (INFN, Bari) ; Fassò, A. (PSI, SLS) ; Ferrari, A. (CERN) ; Loparco, F. (INFN, Bari ; U. Bari (main)) ; Sala, P.R. (INFN, Milan) ; Serini, D. (INFN, Bari ; U. Bari (main))
The interactions of cosmic rays with the solar atmosphere produce secondary particle which can reach the Earth. In this work we present a comprehensive calculation of the yields of secondary particles as gamma-rays, electrons, positrons, neutrons and neutrinos performed with the FLUKA code. [...]
arXiv:2001.09933.- 2020-04-09 - 13 p. - Published in : Phys. Rev. D 101 (2020) 083011 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
3.
Measurements of angular distribution and spectrum of transition radiation with a GridPix detector / Belyaev, N (Moscow Phys. Eng. Inst.) ; Cherry, M L (Louisiana State U.) ; Desch, K (Bonn U.) ; Filippov, K (Moscow Phys. Eng. Inst.) ; Fusco, P (Bari Polytechnic ; INFN, Bari) ; Kaminski, J (Bonn U.) ; Konovalov, S (Lebedev Inst.) ; Krasnopevtsev, D (Moscow Phys. Eng. Inst.) ; Loparco, F (Bari Polytechnic ; INFN, Bari) ; Mazziotta, M N (INFN, Bari) et al.
In recent years, developments of gaseous detectors based on a combination of electron multiplication gap in the gas and pixel readout chips as a part of the anode plane (GasPixel detectors) reached a level where they can offer unique opportunities for particle detection. Transition radiation (TR) detectors based on this technology can be one of the possible applications. [...]
2017 - 8 p. - Published in : J. Phys.: Conf. Ser. 934 (2017) 012049 Fulltext: PDF;
In : The 3rd International Conference on Particle Physics and Astrophysics, Moscow, Russia, 2 - 5 Oct 2017, pp.012049
4.
Measurement of the high-energy gamma-ray emission from the Moon with the Fermi Large Area Telescope / Fermi LAT Collaboration
We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first 7 years of operation, in the energy range from 30 MeV up to a few GeV. We have also studied the time evolution of the flux, finding a correlation with the solar activity. [...]
arXiv:1604.03349.- 2016-04-08 - 16 p. - Published in : Phys. Rev. D 93 (2016) 082001 Fulltext: arXiv:1604.03349 - PDF; 10.1103_PhysRevD.93.082001 - PDF; External link: Preprint
5.
Test beam studies of possibilities to separate particles with gamma factors above 10$^3$ with straw based Transition Radiation Detector / Belyaev, N (Moscow Phys. Eng. Inst.) ; Cherry, M L (Louisiana State U.) ; Doronin, S A (Moscow Phys. Eng. Inst. ; Lebedev Inst.) ; Filippov, K (Moscow Phys. Eng. Inst.) ; Fusco, P (Bari Polytechnic ; INFN, Bari) ; Konovalov, S (Lebedev Inst.) ; Krasnopevtsev, D (Moscow Phys. Eng. Inst.) ; Kramarenko, V (SINP, Moscow) ; Loparco, F (Bari Polytechnic ; INFN, Bari) ; Mazziotta, M N (INFN, Bari) et al.
Measurements of hadron production in the TeV energy range are one of the tasks of the future studies at the Large Hadron Collider (LHC). The main goal of these experiments is a study of the fundamental QCD processes at this energy range, which is very important not only for probing of the Standard Model but also for ultrahigh-energy cosmic particle physics. [...]
2017 - 6 p. - Published in : J. Phys.: Conf. Ser. 934 (2017) 012053 Fulltext: PDF;
In : The 3rd International Conference on Particle Physics and Astrophysics, Moscow, Russia, 2 - 5 Oct 2017, pp.012053
6.
Development of Transition Radiation Detectors for hadron identification at TeV energy scale / Belyaev, N (Moscow Phys. Eng. Inst.) ; Cherry, M L (Louisiana State U.) ; Dachs, F (CERN ; Vienna, Tech. U.) ; Doronin, S A (Moscow Phys. Eng. Inst. ; Lebedev Inst.) ; Filippov, K (Moscow Phys. Eng. Inst. ; Lebedev Inst.) ; Fusco, P (Bari Polytechnic ; INFN, Bari) ; Gargano, F (INFN, Bari) ; Konovalov, S (Lebedev Inst.) ; Loparco, F (Bari Polytechnic ; INFN, Bari) ; Mascagna, V (INFN, Milan Bicocca ; Insubria U., Como) et al.
Many modern and future accelerator and cosmic ray experiments require identification of particles with Lorentz γ-factor up to 104 and above. The only technique which reaches this range of Lorentz factors is based on the transition radiation detectors (TRD). [...]
2019 - 6 p. - Published in : J. Phys.: Conf. Ser. 1390 (2019) 012126 Fulltext: PDF;
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012126
7.
Latest results of the OPERA experiment on nu-tau appearance in the CNGS neutrino beam / OPERA Collaboration
OPERA is a long-baseline experiment designed to search for $\nu_{\mu}\to\nu_{\tau}$ oscillations in appearance mode. It was based at the INFN Gran Sasso laboratory (LNGS) and took data from 2008 to 2012 with the CNGS neutrino beam from CERN. [...]
arXiv:1811.00095.- 2019-02-20 - 7 p. - Published in : SciPost Phys. Proc. 1 (2019) 028 Fulltext: PDF;
In : The 15th International Workshop on Tau Lepton Physics, Amsterdam, Netherlands, 24 - 28 Sep 2018, pp.028
8.
Measurement of the cosmic ray muon flux seasonal variation with the OPERA detector / OPERA Collaboration
The OPERA experiment discovered muon neutrino into tau neutrino oscillations in appearance mode, detecting tau leptons by means of nuclear emulsion films. The apparatus was also endowed with electronic detectors with tracking capability, such as scintillator strips and resistive plate chambers. [...]
arXiv:1810.10783.- 2019-10-01 - 15 p. - Published in : JCAP 1910 (2019) 003 Fulltext: PDF;
9.
Final results on neutrino oscillation parameters from the OPERA experiment in the CNGS beam / OPERA Collaboration
The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. Exploiting the OPERA detector capabilities, it was possible to isolate high purity samples of $\nu_{e}$, $\nu_{\mu}$ and $\nu_{\tau}$ charged current weak neutrino interactions, as well as neutral current weak interactions. [...]
arXiv:1904.05686.- 2019-09-07 - 8 p. - Published in : Phys. Rev. D 100 (2019) 051301 Article from SCOAP3: PDF; Fulltext: PDF;
10.
Updated constraints on sterile neutrino mixing in the OPERA experiment using a new $\nu_e$ identification method / OPERA Collaboration
This paper describes a new $\nu_e$ identification method specifically designed to improve the low-energy ($< 30\,\mathrm{GeV}$) $\nu_e$ identification efficiency attained by enlarging the emulsion film scanning volume with the next generation emulsion readout system. A relative increase of 25-70% in the $\nu_e$ low-energy region is expected, leading to improvements in the OPERA sensitivity to neutrino oscillations in the framework of the 3 + 1 model. [...]
arXiv:2211.04636.- 2023-03-09 - 13 p. - Published in : PTEP 2023 (2023) 033C01 Fulltext: document - PDF; 2211.04636 - PDF;

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