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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14411/19
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Browsing Scopus by Author "Abbaneo, D."
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Article Installation and Performance of the 3rd Veto Plane at the SND@LHC Detector(IOP Publishing Ltd, 2025) Abbaneo, D.; Acampora, G.; Ahmad, S.; Albanese, R.; Alexandrov, A.; Alicante, F.; Zamora Saa, J.During 2022/2023 the optimal inefficiency of the Veto system of the SND@LHC detector was measured to be (7.8 +/- 2.8) x 10(-8). To reduce this inefficiency, a third Veto plane was installed during the 2023-2024 Year End Technical Stop. In addition, the Veto system was lowered to cover the target fully, thereby increasing acceptance. This paper describes how the inefficiency of the Veto system was reduced from (7.8 +/- 2.8) x 10(-8) with an acceptance of about 64% of the target area in 2022-2023 to (4.9 +/- 1.9) x 10(-9) on the full area in 2024.Article Observation of Collider Neutrinos without Final State Muons with the SND at LHC Experiment(American Physical Society, 2025) Abbaneo, D.; Ahmad, S.; Albanese, R.; Alexandrov, A.; Alicante, F.; Androsov, K.; Zamora-Saá, J.We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4σ. A dataset of proton-proton collisions at s=13.6 TeV collected by SND@LHC in 2022 and 2023 is used, corresponding to an integrated luminosity of 68.6 fb-1. Neutrino interactions without a reconstructed muon are selected, resulting in an event sample consisting mainly of neutral-current and electron neutrino charged-current interactions in the detector. After selection cuts, 9 neutrino interaction candidate events are observed with an estimated background of 0.32 events. © 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.Article Studies of Hadronic Showers in SND@LHC(Institute of Physics, 2025) Abbaneo, D.; Ahmad, S.; Albanese, R.; Alexandrov, A.; Alicante, F.; Aloschi, F.; Zamora-Saá, J.The SND@LHC experiment was built for observing neutrinos arising from LHC pp collisions. The detector consists of two sections: a target instrumented with SciFi modules and a hadronic calorimeter/muon detector. Energetic νN collisions in the target produce hadronic showers. Reconstruction of the shower total energy requires an estimate of the fractions deposited in both the target and the calorimeter. In order to calibrate the SND@LHC response, a replica of the detector was exposed to hadron beams with 100 to 300 GeV in the CERN SPS H8 test beam line in Summer 2023. This report describes the methods developed to tag the presence of a shower, to locate the shower origin in the target, and to combine the target SciFi and the calorimeter signals so to measure the shower total energy. © 2025 Elsevier B.V., All rights reserved.
