Observation of collider muon neutrinos with the SND@LHC experiment

We report the direct observation of muon neutrino interactions with the \SND detector at the Large Hadron Collider. A data set of proton-proton collisions at $\sqrt{s} = 13.6\,$TeV collected by \SND in 2022 is used, corresponding to an integrated luminosity of 36.8$\,\rm{fb}^{-1}$. The search is bas...

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Detalles Bibliográficos
Autores principales: 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. Blanco, 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, A.M., 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., Meo, S. Lo, 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., Gilarte, M. Sabate, 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., Sandoval, O.J. Soto, Spurio, M., Starkov, N., Timiryasov, I., Tioukov, V., Tramontano, F., Trippl, C., Ursov, E., Ustyuzhanin, A., Vankova-Kirilova, G., Verguilov, V., Leonardo, N. Viegas Guerreiro, Vilela, C., Visone, C., Wanke, R., Yaman, E., Yazici, C., Yoon, C.S., Zaffaroni, E., Zamora Saa, J.
Lenguaje:eng
Publicado: 2023
Materias:
Particle Physics - Experiment
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.131.031802
http://cds.cern.ch/record/2858828
Descripción
Sumario:We report the direct observation of muon neutrino interactions with the \SND detector at the Large Hadron Collider. A data set of proton-proton collisions at $\sqrt{s} = 13.6\,$TeV collected by \SND in 2022 is used, corresponding to an integrated luminosity of 36.8$\,\rm{fb}^{-1}$. The search is based on information from the active electronic components of the \SND detector, which covers the pseudo-rapidity 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 \neum interaction candidate events remain with an estimated background of 0.078 events, yielding a significance of seven standard deviations for the observed \neum signal.

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