English

Construction, commissioning, and performance of the ENUBET demonstrator

High Energy Physics - Experiment 2026-08-03 v1
Authors: F. Acerbi , I. Angelis , L. Bomben , M. Bonesini , F. Bramati , A. Branca , C. Brizzolari , G. Brunetti , G. T. Burton , S. Capelli , M. Capitani , S. Carturan , M. G. Catanesi , S. Cecchini , N. Charitonidis , F. Cindolo , J. Cogan , G. Cogo , G. Collazuol , D. D'Ago , F. Dal Corso , C. Delogu , G. De Rosa , S. Dolan , A. Falcone , M. Feltre , A. Gola , D. Guffanti , L. Halić , F. Iacob , C. Jollet , A. Kallitsopoulou , B. Kliček , Y. Kudenko , Ch. Lampoudis , M. Laveder , P. Legou , S. Levorato , A. Longhin , L. Ludovici , E. Lutsenko , L. Magaletti , G. Mandrioli , S. Marangoni , A. Margotti , V. Mascagna , M. Mattiazzi , N. Mauri , J. McElwee , L. Meazza , A. Meregaglia , M. Mezzetto , L. Munteanu , M. Pari , T. Papaevangelou , E. G. Parozzi , L. Pasqualini , G. Paternoster , L. Patrizii , M. Perrin-Terrin , M. Pozzato , M. Prest , F. Pupilli , E. Radicioni , A. C. Ruggeri , G. Saibene , D. Sampsonidis , C. Scian , L. Silvestrin , G. Sirri , M. Stipčević , M. Tenti , F. Terranova , M. Torti , S. E. Tzamarias , E. Vallazza , C. Vallée
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Abstract

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 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.

Keywords

ENUBET instrumented decay tunnel longitudinal sampling calorimeter SiPM particle identification GEANT4 simulation

Cite

@article{arxiv.2608.02164,
  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 Ch. 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 and M. Pozzato and M. Prest and F. Pupilli and E. Radicioni and A. C. Ruggeri and G. Saibene and D. Sampsonidis and C. Scian and L. Silvestrin and G. Sirri and M. Stipčević and M. Tenti and F. Terranova and M. Torti and S. E. Tzamarias and E. Vallazza and C. Vallée},
  journal= {arXiv preprint arXiv:2608.02164},
  year   = {2026}
}

Comments

35 pages, 33 figures