Updated results from the appearance searches for nu(mu) --> nu(tau) and nu(e) --> nu(tau) oscillations in the full NOMAD data sample are reported. The increased data and the use of more refined kinematic schemes for the nu(tau) CC selection allow a significant improvement of the overall sensitivity. The "blind analysis" of both the deep-inelastic and the low multiplicity samples yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% C.L. region in the sin(2)2 theta(mu tau) - Delta m(2) plane which includes sin(2)2 theta(mu tau) < 4.4 X 10(-4) at large Delta m(2) and Delta m(2) < 0.8 eV(2)/c(4) at sin(2)2 theta(mu tau) = 1. The corresponding contour in the nu(e) --> nu(tau) oscillation hypothesis results in sin(2)2 theta(e tau) < 2.2 X 10(-2) at large Delta m(2) and Delta m(2) < 6.5 eV(2)/c(4) at sin(2)2 theta(e tau) = 1. (C) 2000 Elsevier Science B.V. All rights reserved. RI Vercesi, Valerio/C-6672-2008; Collazuol, Gianmaria/C-5670-2012; Soler, Paul/E-8464-2011; Moorhead, Gareth/B-6634-2009

Updated results from the nu(tau) appearance search in NOMAD

CAVASINNI, VINCENZO;RODA, CHIARA MARIA ANGELA;
2000

Abstract

Updated results from the appearance searches for nu(mu) --> nu(tau) and nu(e) --> nu(tau) oscillations in the full NOMAD data sample are reported. The increased data and the use of more refined kinematic schemes for the nu(tau) CC selection allow a significant improvement of the overall sensitivity. The "blind analysis" of both the deep-inelastic and the low multiplicity samples yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% C.L. region in the sin(2)2 theta(mu tau) - Delta m(2) plane which includes sin(2)2 theta(mu tau) < 4.4 X 10(-4) at large Delta m(2) and Delta m(2) < 0.8 eV(2)/c(4) at sin(2)2 theta(mu tau) = 1. The corresponding contour in the nu(e) --> nu(tau) oscillation hypothesis results in sin(2)2 theta(e tau) < 2.2 X 10(-2) at large Delta m(2) and Delta m(2) < 6.5 eV(2)/c(4) at sin(2)2 theta(e tau) = 1. (C) 2000 Elsevier Science B.V. All rights reserved. RI Vercesi, Valerio/C-6672-2008; Collazuol, Gianmaria/C-5670-2012; Soler, Paul/E-8464-2011; Moorhead, Gareth/B-6634-2009
Astier, P; Autiero, D; Baldisseri, A; Baldo Ceolin, M; Ballocchi, G; Banner, M; Bassompierre, G; Benslama, K; Besson, N; Bird, I; Blumenfeld, B; Bobisut, F; Bouchez, J; Boyd, S; Bueno, A; Bunyatov, S; Camilleri, L; Cardini, A; Cattaneo, Pw; Cavasinni, Vincenzo; Cervera Villanueva, A; Collazuol, G; Conforto, G; Conta, C; Contalbrigo, M; Cousins, R; Daniels, D; Degaudenzi, H; Del Prete, T; De Santo, A; Dignan, T; Di Lella, L; Silva, Ede; Dumarchez, J; Ellis, M; Feldman, Gj; Ferrari, R; Ferrere, D; Flaminio, V; Fraternali, M; Gaillard, Jm; Gangler, E; Geiser, A; Geppert, D; Gibin, D; Gninenko, S; Godley, A; Gomez Cadenas, Jj; Gosset, J; Gossling, C; Gouanere, M; Grant, A; Graziani, G; Guglielmi, A; Hagner, C; Hernando, J; Hubbard, D; Hurst, P; Hyett, N; Iacopini, E; Joseph, C; Juget, F; Kirsanov, M; Klimov, O; Kokkonen, J; Kovzelev, A; Krasnoperov, A; Kuznetsov, Ve; Lacaprara, S; Lachaud, C; Lakic, B; Lanza, A; La Rotonda, L; Laveder, M; Letessier Selvon, A; Levy, Jm; Linssen, L; Ljubicic, A; Long, J; Lupi, A; Marchionni, A; Martelli, F; Mechain, X; Mendiburu, Jp; Meyer, Jp; Mezzetto, M; Mishra, Sr; Moorhead, Gf; Nedelec, P; Nefedov, Y; Nguyen Mau, C; Orestano, D; Pastore, F; Peak, Ls; Pennacchio, E; Pessard, H; Petti, R; Placci, A; Polesello, G; Pollmann, D; Polyarush, A; Popov, B; Poulsen, C; Rebuffi, L; Rico, J; Roda, CHIARA MARIA ANGELA; Rubbia, A; Salvatore, F; Schahmaneche, K; Schmidt, B; Sevior, M; Sillou, D; Soler, Fjp; Sozzi, G; Steele, D; Steininger, M; Stiegler, U; Stipcevic, M; Stolarczyk, T; Tareb Reyes, M; Taylor, Gn; Tereshchenko, V; Toropin, A; Touchard, Am; Tovey, Sn; Tran, Mt; Tsesmelis, E; Ulrichs, J; Vacavant, L; Valdata Nappi, M; Valuev, V; Vannucci, F; Varvell, Ke; Veltri, M; Vercesi, V; Vieira, Jm; Vinogradova, T; Weber, Fv; Weisse, T; Wilson, Ff; Winton, Lj; Yabsley, Bd; Zaccone, H; Zuber, K; Zuccon, P.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/190503
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 24
social impact