Fast-timing study of the l-forbidden 1/2+→3/2+ M1 transition in Sn129 von Lică, R, Mach, H, Fraile, LM, Gargano, A, Borge, MJG, Mărginean, N, Sotty, CO, Vedia, V, Andreyev, AN, Benzoni, G, Bomans, P, Borcea, R, Coraggio, L, Costache, C, De Witte, H, Flavigny, F, Fynbo, H, Gaffney, LP, Greenlees, PT, Harkness-Brennan, LJ, Huyse, M, Ibáñez, P, Judson, DS, Konki, J, Korgul, A, Kröll, T, Kurcewicz, J, Lalkovski, S, Lazarus, I, Lund, MV, Madurga, M, Mărginean, R, Marroquín, I, Mihai, C, Mihai, RE, Morales, AI, Nácher, E, Negret, A, Page, RD, Pakarinen, J, Pascu, S, Paziy, V, Perea, A, Pérez-Liva, M, Picado, E, Pucknell, V, Rapisarda, E, Rahkila, P, Rotaru, F, Swartz, JA, Tengblad, O, Van Duppen, P, Vidal, M, Wadsworth, R, Walters, WB, Warr, N