Observation of Collider Muon Neutrinos with the SND@LHC Experiment

Albanese, R.; Alexandrov, A.; Alicante, F.; Anokhina, A.; Asada, T.; Battilana, C.; Bay, A.; Betancourt, C.; Biswas, R.; Blanco Castro, A.; Bogomilov, M.; Bonacorsi, D.; Bonivento, W.M.; Bordalo, P.; Boyarsky, A.; Buontempo, S.; Campanelli, M.; Camporesi, T.; Canale, V.; Castro, A.; Centanni, D.; Cerutti, F.; Chernyavskiy, M.; Choi, K.-Y.; Cholak, S.; Cindolo, F.; Climescu, M.; Conaboy, A.P.; Dallavalle, G.M.; Davino, D.; De Bryas, P.T.; De Lellis, G.; De Magistris, M.; De Roeck, A.; De Rújula, A.; De Serio, M.; De Simone, D.; Di Crescenzo, A.; Donà, R.; Durhan, O.; Fabbri, F.; Fedotovs, F.; Ferrillo, M.; Ferro-Luzzi, M.; Fini, R.A.; Fiorillo, A.; Fresa, R.; Funk, W.; Garay Walls, F.M.; Golovatiuk, A.; Golutvin, A.; Graverini, E.; Guler, ALİ; Guliaeva, V.; Haefeli, G.J.; Helo Herrera, J.C.; Van Herwijnen, E.; Iengo, P.; Ilieva, S.; Infantino, A.; Iuliano, A.; Jacobsson, R.; Kamiscioglu, C.; Kauniskangas, A.M.; Khalikov, E.; Kim, S.H.; Kim, Y.G.; Klioutchnikov, G.; Komatsu, M.; Konovalova, N.; Kovalenko, S.; Kuleshov, S.; Lacker, H.M.; Lantwin, O.; Lasagni Manghi, F.; Lauria, A.; Lee, K.Y.; Lee, K.S.; Lo Meo, S.; Loschiavo, V.P.; Marcellini, S.; Margiotta, A.; Mascellani, A.; Miano, A.; Mikulenko, A.; Montesi, M.C.; Navarria, F.L.; Ogawa, S.; Okateva, N.; Ovchynnikov, M.; Paggi, G.; Park, B.D.; Pastore, A.; Perrotta, A.; Podgrudkov, D.; Polukhina, N.; Prota, A.; Quercia, A.; Ramos, S.; Reghunath, A.; Roganova, T.; Ronchetti, F.; Rovelli, T.; Ruchayskiy, O.; Ruf, T.; Sabate Gilarte, M.; Samoilov, M.; Scalera, V.; Schneider, O.; Sekhniaidze, G.; Serra, N.; Shaposhnikov, M.; Shevchenko, V.; Shchedrina, T.; Shchutska, L.; Shibuya, H.; Simone, S.; Siroli, G.P.; Sirri, G.; Soares, G.; Soto Sandoval, O.J.; Spurio, M.; Starkov, N.; Timiryasov, I.; Tioukov, V.; Tramontano, F.; Trippl, C.; Ursov, E.; Ustyuzhanin, A.; Vankova-Kirilova, G.; Verguilov, V.; Viegas Guerreiro Leonardo, N.; Vilela, C.; Visone, C.; Wanke, R.; Yaman, E.; Yazici, C.; Yoon, C.S.; Zaffaroni, E.; Zamora Saa, J.

doi:10.1103/physrevlett.131.031802

Observation of Collider Muon Neutrinos with the SND@LHC Experiment

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Albanese R., Alexandrov A., Alicante F., Anokhina A., Asada T., Battilana C., ...More

PHYSICAL REVIEW LETTERS, vol.131, no.3, 2023 (SCI-Expanded)

Publication Type: Article / Article
Volume: 131 Issue: 3
Publication Date: 2023
Doi Number: 10.1103/physrevlett.131.031802
Journal Name: PHYSICAL REVIEW LETTERS
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH, DIALNET
Middle East Technical University Affiliated: Yes

Abstract

We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A dataset of proton-proton collisions at root s = 13.6 TeV collected by SND@LHC in 2022 is used, corresponding to an integrated luminosity of 36.8 fb(-1). The search is based on information from the active electronic components of the SND@LHC detector, which covers the pseudorapidity region of 7.2 < eta < 8.4, inaccessible to the other experiments at the collider. Muon neutrino candidates are identified through their charged-current interaction topology, with a track propagating through the entire length of the muon detector. After selection cuts, 8 nu(mu) interaction candidate events remain with an estimated background of 0.086 events, yielding a significance of about 7 standard deviations for the observed nu(mu) signal.