Abstract
Results from the ντ appearance search in a neutrino beam using the full NOMAD data sample are reported. A new analysis unifies all the hadronic τ decays, significantly improving the overall sensitivity of the experiment to oscillations. The "blind analysis" of all topologies yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% CL allowed region in the sin22θμτ-Δm2 plane which includes sin22θμτ<3.3×10-4 at large Δm2 and Δm2< 0.7 eV2/c4 at sin22θμτ=1. The corresponding contour in the νe→ντ oscillation hypothesis results in sin22θeτ<1.5×10-2 at large Δm2 and Δm2<5.9 eV2/c4 at sin22θeτ=1. We also derive limits on effective couplings of the τ lepton to νμ or νe.
| Original language | English |
|---|---|
| Pages (from-to) | 3-39 |
| Number of pages | 37 |
| Journal | Nuclear Physics B |
| Volume | 611 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 17 Sep 2001 |
| Externally published | Yes |
Keywords
- Appearance
- Neutrino mass
- Neutrino oscillations
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Final NOMAD results on νμ→ντ and νe→ντ oscillations including a new search for ντ appearance using hadronic τ decays. / Astier, P.; Autiero, D.; Baldisseri, A.; Baldo-Ceolin, M.; 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, P. W.; Cavasinni, V.; Cervera-Villanueva, A.; Chukanov, 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.; do Couto e Silva, E.; Dumarchez, J.; Ellis, M.; Feldman, G. J.; Ferrari, R.; Ferrère, D.; Flaminio, V.; Fraternali, M.; Gaillard, J. M.; Gangler, E.; Geiser, A.; Geppert, D.; Gibin, D.; Gninenko, S.; Godley, A.; Gomez-Cadenas, J. J.; Gosset, J.; Gößling, C.; Gouanère, 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.; Kustov, D.; Kuznetsov, V. E.; Lacaprara, S.; Lachaud, C.; Lakic, B.; Lanza, A.; la Rotonda, L.; Laveder, M.; Letessier-Selvon, A.; Levy, J. M.; Linssen, L.; Ljubičić, A.; Long, J.; Lupi, A.; Marchionni, A.; Martelli, F.; Méchain, X.; Mendiburu, J. P.; Meyer, J. P.; Mezzetto, M.; Mishra, S. R.; Moorhead, G. F.; Naumov, D.; Nédélec, P.; Nefedov, Yu; Nguyen-Mau, C.; Orestano, D.; Pastore, F.; Peak, L. S.; Pennacchio, E.; Pessard, H.; Petti, R.; Placci, A.; Polesello, G.; Pollmann, D.; Polyarush, A.; Popov, B.; Poulsen, C.; Rico, J.; Riemann, P.; Roda, C.; Rubbia, A.; Salvatore, F.; Schahmaneche, K.; Schmidt, B.; Schmidt, T.; Sconza, A.; Sevior, M.; Sillou, D.; Soler, F. J.P.; Sozzi, G.; Steele, D.; Stiegler, U.; Stipčević, M.; Stolarczyk, T.; Tareb-Reyes, M.; Taylor, G. N.; Tereshchenko, V.; Toropin, A.; Touchard, A. M.; Tovey, S. N.; Tran, M. T.; Tsesmelis, E.; Ulrichs, J.; Vacavant, L.; Valdata-Nappi, M.; Valuev, V.; Vannucci, F.; Varvell, K. E.; Veltri, M.; Vercesi, V.; Vidal-Sitjes, G.; Vieira, J. M.; Vinogradova, T.; Weber, F. V.; Weisse, T.; Wilson, F. F.; Winton, L. J.; Yabsley, B. D.; Zaccone, H.; Zuber, K.; Zuccon, P.
In: Nuclear Physics B, Vol. 611, No. 1-3, 17.09.2001, p. 3-39.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Final NOMAD results on νμ→ντ and νe→ντ oscillations including a new search for ντ appearance using hadronic τ decays
AU - Astier, P.
AU - Autiero, D.
AU - Baldisseri, A.
AU - Baldo-Ceolin, M.
AU - Banner, M.
AU - Bassompierre, G.
AU - Benslama, K.
AU - Besson, N.
AU - Bird, I.
AU - Blumenfeld, B.
AU - Bobisut, F.
AU - Bouchez, J.
AU - Boyd, S.
AU - Bueno, A.
AU - Bunyatov, S.
AU - Camilleri, L.
AU - Cardini, A.
AU - Cattaneo, P. W.
AU - Cavasinni, V.
AU - Cervera-Villanueva, A.
AU - Chukanov, A.
AU - Collazuol, G.
AU - Conforto, G.
AU - Conta, C.
AU - Contalbrigo, M.
AU - Cousins, R.
AU - Daniels, D.
AU - Degaudenzi, H.
AU - del Prete, T.
AU - de Santo, A.
AU - Dignan, T.
AU - di Lella, L.
AU - do Couto e Silva, E.
AU - Dumarchez, J.
AU - Ellis, M.
AU - Feldman, G. J.
AU - Ferrari, R.
AU - Ferrère, D.
AU - Flaminio, V.
AU - Fraternali, M.
AU - Gaillard, J. M.
AU - Gangler, E.
AU - Geiser, A.
AU - Geppert, D.
AU - Gibin, D.
AU - Gninenko, S.
AU - Godley, A.
AU - Gomez-Cadenas, J. J.
AU - Gosset, J.
AU - Gößling, C.
AU - Gouanère, M.
AU - Grant, A.
AU - Graziani, G.
AU - Guglielmi, A.
AU - Hagner, C.
AU - Hernando, J.
AU - Hubbard, D.
AU - Hurst, P.
AU - Hyett, N.
AU - Iacopini, E.
AU - Joseph, C.
AU - Juget, F.
AU - Kirsanov, M.
AU - Klimov, O.
AU - Kokkonen, J.
AU - Kovzelev, A.
AU - Krasnoperov, A.
AU - Kustov, D.
AU - Kuznetsov, V. E.
AU - Lacaprara, S.
AU - Lachaud, C.
AU - Lakic, B.
AU - Lanza, A.
AU - la Rotonda, L.
AU - Laveder, M.
AU - Letessier-Selvon, A.
AU - Levy, J. M.
AU - Linssen, L.
AU - Ljubičić, A.
AU - Long, J.
AU - Lupi, A.
AU - Marchionni, A.
AU - Martelli, F.
AU - Méchain, X.
AU - Mendiburu, J. P.
AU - Meyer, J. P.
AU - Mezzetto, M.
AU - Mishra, S. R.
AU - Moorhead, G. F.
AU - Naumov, D.
AU - Nédélec, P.
AU - Nefedov, Yu
AU - Nguyen-Mau, C.
AU - Orestano, D.
AU - Pastore, F.
AU - Peak, L. S.
AU - Pennacchio, E.
AU - Pessard, H.
AU - Petti, R.
AU - Placci, A.
AU - Polesello, G.
AU - Pollmann, D.
AU - Polyarush, A.
AU - Popov, B.
AU - Poulsen, C.
AU - Rico, J.
AU - Riemann, P.
AU - Roda, C.
AU - Rubbia, A.
AU - Salvatore, F.
AU - Schahmaneche, K.
AU - Schmidt, B.
AU - Schmidt, T.
AU - Sconza, A.
AU - Sevior, M.
AU - Sillou, D.
AU - Soler, F. J.P.
AU - Sozzi, G.
AU - Steele, D.
AU - Stiegler, U.
AU - Stipčević, M.
AU - Stolarczyk, T.
AU - Tareb-Reyes, M.
AU - Taylor, G. N.
AU - Tereshchenko, V.
AU - Toropin, A.
AU - Touchard, A. M.
AU - Tovey, S. N.
AU - Tran, M. T.
AU - Tsesmelis, E.
AU - Ulrichs, J.
AU - Vacavant, L.
AU - Valdata-Nappi, M.
AU - Valuev, V.
AU - Vannucci, F.
AU - Varvell, K. E.
AU - Veltri, M.
AU - Vercesi, V.
AU - Vidal-Sitjes, G.
AU - Vieira, J. M.
AU - Vinogradova, T.
AU - Weber, F. V.
AU - Weisse, T.
AU - Wilson, F. F.
AU - Winton, L. J.
AU - Yabsley, B. D.
AU - Zaccone, H.
AU - Zuber, K.
AU - Zuccon, P.
PY - 2001/9/17
Y1 - 2001/9/17
N2 - Results from the ντ appearance search in a neutrino beam using the full NOMAD data sample are reported. A new analysis unifies all the hadronic τ decays, significantly improving the overall sensitivity of the experiment to oscillations. The "blind analysis" of all topologies yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% CL allowed region in the sin22θμτ-Δm2 plane which includes sin22θμτ<3.3×10-4 at large Δm2 and Δm2< 0.7 eV2/c4 at sin22θμτ=1. The corresponding contour in the νe→ντ oscillation hypothesis results in sin22θeτ<1.5×10-2 at large Δm2 and Δm2<5.9 eV2/c4 at sin22θeτ=1. We also derive limits on effective couplings of the τ lepton to νμ or νe.
AB - Results from the ντ appearance search in a neutrino beam using the full NOMAD data sample are reported. A new analysis unifies all the hadronic τ decays, significantly improving the overall sensitivity of the experiment to oscillations. The "blind analysis" of all topologies yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% CL allowed region in the sin22θμτ-Δm2 plane which includes sin22θμτ<3.3×10-4 at large Δm2 and Δm2< 0.7 eV2/c4 at sin22θμτ=1. The corresponding contour in the νe→ντ oscillation hypothesis results in sin22θeτ<1.5×10-2 at large Δm2 and Δm2<5.9 eV2/c4 at sin22θeτ=1. We also derive limits on effective couplings of the τ lepton to νμ or νe.
KW - Appearance
KW - Neutrino mass
KW - Neutrino oscillations
UR - http://www.scopus.com/inward/record.url?scp=0035904104&partnerID=8YFLogxK
U2 - 10.1016/S0550-3213(01)00339-X
DO - 10.1016/S0550-3213(01)00339-X
M3 - Article
AN - SCOPUS:0035904104
VL - 611
SP - 3
EP - 39
JO - Nuclear Physics B
JF - Nuclear Physics B
SN - 0550-3213
IS - 1-3
ER -