Construction, commissioning, and performance of the ENUBET demonstrator

@misc{acerbi2026construction,
  title = {{Construction, commissioning, and performance of the ENUBET demonstrator}},
  author = {F Acerbi and I Angelis and L Bomben and M Bonesini and F Bramati and A Branca and C Brizzolari and G Brunetti and G.T Burton and S Capelli and M Capitani and S Carturan and M.G Catanesi and S Cecchini and N Charitonidis and F Cindolo and J Cogan and G Cogo and G Collazuol and D d'Ago and F Dal Corso and C Delogu and G de Rosa and S Dolan and A Falcone and M Feltre and A Gola and D Guffanti and L Halić and F Iacob and C Jollet and A Kallitsopoulou and B Kliček and Y Kudenko and C Lampoudis and M Laveder and P Legou and S Levorato and A Longhin and L Ludovici and E Lutsenko and L Magaletti and G Mandrioli and S Marangoni and A Margotti and V Mascagna and M Mattiazzi and N Mauri and J Mcelwee and L Meazza and A Meregaglia and M Mezzetto and L Munteanu and M Pari and T Papaevangelou and E.G Parozzi and L Pasqualini and G Paternoster and L Patrizii and M Perrin-Terrin},
  howpublished = {HAL},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2608.02164},
  eprint = {2608.02164},
  archivePrefix = {arXiv},
  url = {https://hal.science/hal-05734579v1},
}

TY  - UNPB
TI  - Construction, commissioning, and performance of the ENUBET demonstrator
AU  - F Acerbi
AU  - I Angelis
AU  - L Bomben
AU  - M Bonesini
AU  - F Bramati
AU  - A Branca
AU  - C Brizzolari
AU  - G Brunetti
AU  - G.T Burton
AU  - S Capelli
AU  - M Capitani
AU  - S Carturan
AU  - M.G Catanesi
AU  - S Cecchini
AU  - N Charitonidis
AU  - F Cindolo
AU  - J Cogan
AU  - G Cogo
AU  - G Collazuol
AU  - D d'Ago
AU  - F Dal Corso
AU  - C Delogu
AU  - G de Rosa
AU  - S Dolan
AU  - A Falcone
AU  - M Feltre
AU  - A Gola
AU  - D Guffanti
AU  - L Halić
AU  - F Iacob
AU  - C Jollet
AU  - A Kallitsopoulou
AU  - B Kliček
AU  - Y Kudenko
AU  - C Lampoudis
AU  - M Laveder
AU  - P Legou
AU  - S Levorato
AU  - A Longhin
AU  - L Ludovici
AU  - E Lutsenko
AU  - L Magaletti
AU  - G Mandrioli
AU  - S Marangoni
AU  - A Margotti
AU  - V Mascagna
AU  - M Mattiazzi
AU  - N Mauri
AU  - J Mcelwee
AU  - L Meazza
AU  - A Meregaglia
AU  - M Mezzetto
AU  - L Munteanu
AU  - M Pari
AU  - T Papaevangelou
AU  - E.G Parozzi
AU  - L Pasqualini
AU  - G Paternoster
AU  - L Patrizii
AU  - M Perrin-Terrin
PY  - 2026
DA  - 2026/09/01
PB  - HAL
DO  - 10.48550/arxiv.2608.02164
UR  - https://hal.science/hal-05734579v1
AB  - A final full-size prototype of the instrumented decay tunnel of ENUBET, referred to as the Demonstrator, was constructed and its performance was tested during the 2022, 2023 and 2024 beam test campaigns at the CERN East Area facility. We demonstrate the full scalability of this specialized longitudinal sampling calorimeter technology, based on iron absorbers and scintillator tiles readout by wavelength-shifting fibers and SiPMs. In addition, we evaluate the channel-by- channel response and the performance in terms of electron energy resolution, linearity, and particle identification capabilities, using charged particle beams with energies up to 5 GeV. A comparison with the predictions of a GEANT4 simulation of the prototype is also presented. The achieved energy resolution (∼ 17\% at 1 GeV and 10\% at 3 GeV) fully satisfies the requirements for positron identification. The results meet the requirements for neutrino monitoring through lepton identification in the decay tunnel and validate the ENUBET full simulation. Although some limitations have been identified, they can be readily addressed in future developments.
ER  -