MACRO results on atmospheric neutrinos

Ambrosio, M; Antolini, R; Assiro, R; Auriemma, G; Bakari, D; Baldini, A; Barbarino, Gc; Barbarito, E; Barish, Bc; Battistoni, G; Becherini, Y; Bellotti, R; Bemporad, C; Bernardini, P; Bilokon, H; Bisi, V; Bloise, C; Bottazzi, E; Bower, C; Brigida, M; Bussino, Severino Angelo Maria; Cafagna, F; Calicchio, M; Campana, D; Candela, A; Carboni, M; Cecchini, S; Cei, F; Ceres, A; Chiarella, V; Choudhary, Bc; Coutu, S; Cozzi, M; Creti, P; De Cataldo, G; Degli Esposti, L; Dekhissi, H; De Marzo, C; De Mitri, I; Derkaoui, J; De Vincenzi, M; Di Credico, A; Di Ferdinando, D; Diotallevi, R; Erriquez, O; Favuzzi, C; Forti, C; Fusco, P; Gebhard, M; Giacomelli, G; Giacomelli, R; Giannini, G; Giglietto, N; Giorgini, M; Giuliani, R; Goretti, M; Grassi, M; Grau, H; Gray, L; Grillo, A; Guarino, F; Gustavino, C; Habig, A; Hanson, J; Hanson, K; Hawthorne, A; Heinz, R; Hong, Jt; Iarocci, E; Katsavounidis, E; Katsavounidis, I; Kearns, E; Kim, H; Kyriazopoulou, S; Lamanna, E; Lane, C; Leone, A; Levin, Ds; Lipari, P; Liu, G; Liu, R; Longley, Np; Longo, Mj; Loparco, F; Maaroufi, F; Mancarella, G; Mandrioli, G; Manzoor, S; Marrelli, V; Margiotta, A; Marini, A; Martello, D; Marzari Chiesa, A; Mazziotta, Mn; Michael, Dg; Mikheyev, S; Miller, L; Monacelli, P; Mongelli, M; Montaruli, T; Monteno, M; Mossbarger, L; Mufson, S; Musser, J; Nicolo, D; Nolty, R; Okada, C; Orsini, M; Orth, C; Osteria, G; Ouchrif, M; Palamara, O; Parlati, S; Patera, V; Patrizii, L; Pazzi, R; Peck, Cw; Pellizzoni, G; Perchiazzi, M; Perrone, L; Petrakis, J; Petrera, S; Pignatano, N; Pinto, C; Pistilli, P; Popa, V; Raino, A; Reynoldson, J; Ronga, F; Rrhioua, A; Sacchetti, A; Saggese, P; Satriano, C; Satta, L; Scapparone, E; Scholberg, K; Sciubba, A; Serra, P; Sioli, M; Sirri, G; Sitta, M; Sondergaard, S; Spinelli, P; Spinetti, M; Spurio, M; Stalio, S; Steinberg, R; Stone, Jl; Sulak, Lr; Surdo, A; Tarle, G; Togo, V; Vakili, M; Valieri, C; Walter, Cw; Webb, R; Zaccheo, N.

doi:10.1016/j.nuclphysbps.2005.03.047

We discuss the final results of the MACRO experiment on atmospheric neutrino oscillations. The data concern event topologies with average neutrino energies of ∼ 3 and ∼ 50 GeV. Multiple Coulomb Scattering of the high energy muons was used to estimate the neutrino energy event by event. The angular distributions, the L/Eν distribution, the particle ratios and the absolute fluxes all favor νμ → ντ oscillations with maximal mixing and Δm2 ≃ 0.0023 eV2. Emphasis is given to measured ratios which are not affected by Monte Carlo (MC) absolute normalization; a discussion is made on MC uncertainties. A preliminary search for possible Lorentz invariance violation contributions to atmospheric neutrino oscillations is presented and discussed. © 2005 Elsevier B.V. All rights reserved.

Ambrosio, M., Antolini, R., Assiro, R., Auriemma, G., Bakari, D., Baldini, A., et al. (2005). MACRO results on atmospheric neutrinos. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 145, 116-119 [10.1016/j.nuclphysbps.2005.03.047].