Limit on νe→ ντ oscillations from the NOMAD experiment

• Published in: Physics letters. B 2000, Vol.471 (4), p.406-410
• Main Authors: Astier, P, Autiero, D, Baldo-Ceolin, M, Ballocchi, G, Bassompierre, G, Besson, N, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Cardini, A, Cattaneo, P.W, Cavasinni, V, Cervera-Villanueva, A, Conforto, G, Conta, C, Contalbrigo, M, Daniels, D, Degaudenzi, H, Del Prete, T, De Santo, A, Di Lella, L, do Couto e Silva, E, Dumarchez, J, Ellis, M, Feldman, G.J, Gaillard, J.-M, Gangler, E, Geppert, D, Gninenko, S, Godley, A, Gomez-Cadenas, J.-J, Grant, A, Guglielmi, A, Hernando, J, Hubbard, D, Hyett, N, Kokkonen, J, Krasnoperov, A, Lacaprara, S, Lachaud, C, Lakić, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier-Selvon, A, Levy, J.-M, Linssen, L, Ljubičić, A, Long, J, Lupi, A, Méchain, X, Mendiburu, J.-P, Meyer, J.-P, Mezzetto, M, Mishra, S.R, Moorhead, G.F, Nefedov, Yu, Nguyen-Mau, C, Orestano, D, Pastore, F, Pessard, H, Petti, R, Placci, A, Polayrush, A, Polesello, G, Pollmann, D, Poulsen, C, Rico, J, Riemann, P, Roda, C, Salvatore, F, Schahmaneche, K, Schmidt, B, Schmidt, T, Sevior, M, Sillou, D, Sozzi, G, Steele, D, Steininger, M, Stiegler, U, Stolarczyk, Th, Tareb-Reyes, M, Toropin, A, Touchard, A.-M, Tran, M.-T, Ulrichs, J, Valdata-Nappi, M, Vannucci, F, Varvell, K.E, Veltri, M, Vercesi, V, Vieira, J.-M, Vinogradova, T, Weber, F.V, Weisse, T, Yabsley, B.D, Zaccone, H, Zuber, K
• Format: Article
• Language: English
• Subjects: Neutrino oscillations
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/S0370-2693(99)01344-1

In the context of a two-flavour approximation we reinterpret the published NOMAD limit on ν μ → ν τ oscillations in terms of ν e → ν τ oscillations. At 90% C.L. we obtain sin 22θ eτ < 5.2×10 −2 for large Δm 2, while for sin 22 θ eτ =1 the confidence region includes Δm 2