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Acceleration of electromagnetic shower development and enhancement of light yield in oriented scintillating crystals
/ Soldani, Mattia (Frascati) ; Monti-Guarnieri, Pietro (INFN, Trieste ; Trieste U.) ; Selmi, Alessia (Insubria U., Como ; Milan Bicocca U.) ; Argiolas, Nicola (Padua U. ; INFN, Legnaro) ; Bomben, Luca (Insubria U., Como ; Milan Bicocca U.) ; Brizzolari, Claudia (Insubria U., Como ; Milan Bicocca U.) ; Canale, Nicola (INFN, Ferrara) ; Carsi, Stefano (Insubria U., Como ; Milan Bicocca U.) ; Charitonidis, Nikolaos (CERN) ; De Salvador, Davide (Padua U. ; INFN, Legnaro) et al.
We observed a substantial increase of the scintillation light output of lead tungstate (PbWO$_4$) at a small incidence angle with respect to two main lattice axes. [...]
arXiv:2404.12016.
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6 p.
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2.
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Strong enhancement of electromagnetic shower development induced by high-energy photons in a thick oriented tungsten crystal
/ Soldani, M. (INFN, Ferrara ; Ferrara U.) ; Bandiera, L. (INFN, Ferrara) ; Moulson, M. (Frascati) ; Ballerini, G. (INFN, Milan ; Catania U.) ; Baryshevsky, V.G. (Belarus State U.) ; Bomben, L. (INFN, Milan ; Catania U.) ; Brizzolari, C. (Catania U. ; INFN, Milan) ; Charitonidis, N. (CERN) ; D'Alessandro, G.L. (CERN) ; De Salvador, D. (INFN, Legnaro ; Padua U.) et al.
We have observed a significant enhancement in the energy deposition by $25$--$100~\mathrm{GeV}$ photons in a $1~\mathrm{cm}$ thick tungsten crystal oriented along its $\langle 111 \rangle$ lattice axes. At $100~\mathrm{GeV}$, this enhancement, with respect to the value observed without axial alignment, is more than twofold. [...]
arXiv:2203.07163.-
2023-01-31 - 8 p.
- Published in : Eur. Phys. J. C 83 (2023) 101
Fulltext: 2203.07163 - PDF; Publication - PDF;
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Development of nanocomposite scintillators for use in high-energy physics
/ Antonelli, A. (Frascati) ; Auffray, E. (CERN) ; Brovelli, S. (Milan Bicocca U. ; Beijing, CSRC) ; Bruni, F. (Milan Bicocca U.) ; Campajola, M. (Naples U. ; INFN, Naples) ; Carsi, S. (Insubria U., Como ; Milan Bicocca U.) ; Carulli, F. (Milan Bicocca U.) ; De Nardo, G. (Naples U. ; INFN, Naples) ; Di Meco, E. (Frascati ; Rome U., Tor Vergata) ; Diociaiuti, E. (Frascati) et al.
Semiconductor nanocrystals (quantum dots) are light emitters with high quantum yield that are relatively easy to manufacture. There is therefore much interest in their possible application for the development of high-performance scintillators for use in high-energy physics. [...]
arXiv:2407.10915.-
2024-09-12 - 3 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1069 (2024) 169877
Fulltext: PDF;
In : 16th Pisa Meeting on Advanced Detectors (Pisameet 2024), La Biodola, Isola D'elba, Italy, 26 May - 1 Jun 2024, pp.169877
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Strong reduction of the effective radiation length in an axially oriented scintillator crystal
/ Bandiera, L. (Ferrara U. ; INFN, Ferrara) ; Tikhomirov, V.V. (Minsk, Inst. Nucl. Problems) ; Romagnoni, M. (Ferrara U. ; INFN, Ferrara) ; Argiolas, N. (INFN, Padua ; Padua U.) ; Bagli, E. (Ferrara U. ; INFN, Ferrara) ; Ballerini, G. (INFN, Milan Bicocca ; Insubria U., Como) ; Berra, A. (INFN, Milan Bicocca ; Insubria U., Como) ; Brizzolani, C. (Insubria U., Como ; INFN, Milan Bicocca) ; Camattari, R. (Ferrara U. ; INFN, Ferrara) ; De Salvador, D. (INFN, Padua ; Padua U.) et al.
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 the case in which the sample was not aligned with the beam direction. This enhancement resulted from the interaction of particles with the strong crystalline electromagnetic field. [...]
arXiv:1803.10005.-
2018-07-13 - 6 p.
- Published in : Phys. Rev. Lett. 121 (2018) 021603
Preprint: PDF;
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Muon detection in electron-positron annihilation for muon collider studies
/ LEMMA Collaboration
The investigation of the energy frontier in physics requires novel concepts for future colliders. The idea of a muon collider is very appealing since it would allow to study particle collisions at up to tens of TeV energy, while offering a cleaner experimental environment with respect to hadronic colliders. [...]
arXiv:2105.12624.-
2022-02-01 - 22 p.
Fulltext: PDF;
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Investigation on steering of ultrarelativistic $e^{\pm}$ beam through an axially oriented bent crystal
/ Bandiera, L. (INFN, Ferrara) ; Kyryllin, I.V. (Kharkov, KIPT ; Kharkov Natl. U.) ; Brizzolari, C. (Insubria U., Como ; INFN, Milan Bicocca) ; Camattari, R. (INFN, Ferrara ; Ferrara U.) ; Charitonidis, N. (CERN) ; De Salvador, D. (INFN, Padua ; Padua U.) ; Guidi, V. (INFN, Ferrara ; Ferrara U.) ; Mascagna, V. (Insubria U., Como ; INFN, Milan Bicocca) ; Mazzolari, A. (INFN, Ferrara) ; Prest, M. (Insubria U., Como ; INFN, Milan Bicocca) et al.
An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged particles as a function of the crystal orientation, the choice of the bending plane, and of the charge sign. [...]
arXiv:2011.13283.-
2021-03-17 - 10 p.
- Published in : Eur. Phys. J. C 81 (2021) 238
Article from SCOAP3: PDF; Fulltext: PDF;
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A study of muon-electron elastic scattering in a test beam
/ MUonE Collaboration
In 2018, a test run with muons in the North Area at CERN was performed, running parasitically downstream of the COMPASS spectrometer. The aim of the test was to investigate the elastic interactions of muons on atomic electrons, in an experimental configuration similar to the one proposed by the project MUonE, which plans to perform a very precise measurement of the differential cross-section of the elastic interactions. [...]
arXiv:2102.11111.-
2021-06-11 - 14 p.
- Published in : JINST 16 (2021) P06005
Fulltext: document - HTM; 2102.11111 - PDF; Fulltext from publisher: PDF; External link: Fulltext
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Testbeam performance of a shashlik calorimeter with fine-grained longitudinal segmentation
/ Ballerini, G. (Insubria U., Como ; INFN, Milan Bicocca) ; Berra, A. (Insubria U., Como ; INFN, Milan Bicocca) ; Boanta, R. (INFN, Milan Bicocca ; Milan Bicocca U.) ; Brizzolari, C. (Insubria U., Como ; INFN, Milan Bicocca) ; Brunetti, G. (INFN, Padua) ; Catanesi, M.G. (INFN, Bari) ; Cecchini, S. (INFN, Bologna) ; Cindolo, F. (INFN, Bologna) ; Coffani, A. (INFN, Milan Bicocca ; Milan Bicocca U.) ; Collazuol, G. (Padua U. ; INFN, Padua) et al.
An iron- plastic-scintillator shashlik calorimeter with a 4.3 $X_0$ longitudinal segmentation was tested in November 2016 at the CERN East Area facility with charged particles up to 5 GeV. The performance of this detector in terms of electron energy resolution, linearity, response to muons and hadron showers are presented in this paper and compared with simulation. [...]
arXiv:1801.06167.-
2018-01-29 - 21 p.
- Published in : JINST 13 (2018) P01028
Preprint: PDF;
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Study of muon pair production from positron annihilation at threshold energy
/ LEMMA Collaboration
The muon collider represents one of the most promising solutions for a future machine exploring the high energy frontier, but several challenges due to the 2.2 $\mu$sec muon lifetime at rest have to be carefully considered. The LEMMA project is investigating the possibility of producing low emittance muon/antimuon pairs from the e$^+$e$^-$ annihilation process at threshold energy, resulting in small transverse emittance beams without any additional beam cooling. [...]
arXiv:1909.13716.-
2020-01-29 - 15 p.
- Published in : JINST
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Monitored beams for high-precision neutrino flux determination: The ENUBET project
/ Brizzolari, C (INFN, Milan Bicocca ; Milan Bicocca U.) ; Acerbi, F (Fond. Bruno Kessler, Povo) ; Ballerini, G (INFN, Milan Bicocca ; Insubria U., Como) ; Berra, A (INFN, Milan Bicocca ; Insubria U., Como) ; Bonesini, M (INFN, Milan Bicocca) ; Branca, A (INFN, Padua ; Padua U.) ; Brunetti, G (INFN, Padua) ; Calviani, M (CERN) ; Capelli, S (INFN, Milan Bicocca ; Insubria U., Como) ; Carturan, S (INFN, Legnaro) et al.
The knowledge of initial flux, energy and flavour of current neutrino beams is currently the main limitation for a precise measurement of neutrino crosssections. The ENUBET ERC project (2016–2021) is studying a facility based on a narrow-band neutrino beam capable of constraining the neutrino flux normalization through the monitoring of the associated charged leptons in an instrumented decay tunnel. [...]
2020 - 6 p.
- Published in : Nuovo Cimento C 43 (2020) 56
Fulltext: PDF;
In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.56
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