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Journal Articles Physics Letters B Year : 2000

Updated results from the $\nu_{\tau}$ appearance search in Nomad

P. Astier , D. Autiero , A. Baldisseri , M. Baldo-Ceolin , G. Ballocchi , M. Banner , G. Bassompierre (1) , K. Benslama , N. Besson , I G. Bird , B. Blumenfeld , F. Bobisut , J. Bouchez , S. Boyd , A. Bueno , S. Bunyatov , L. Camilleri , A. Cardini , P W. Cattaneo , V. Cavasinni , A. Cervera-Villanueva , G. Collazuol , G. Conforto , C. Conta , M. Contalbrigo , R. Cousins , D. Daniels , H. Degaudenzi , T. del Prete , A. de Santo , T. Dignan , L. Di Lella , E Silva E. Do Couto , J. Dumarchez , M. Ellis , G J. Feldman , R. Ferrari , D. Ferrhre , V. Flaminio , M. Fraternali , J.M. Gaillard (1) , E. Gangler , A. Geiser , D. Geppert , D. Gibin , S. Gninenko , A. Godley , J. J. Gomez-Cadenas , J. Gosset , C. Gossling , M. Gouanere (1) , A. Grant , G. Graziani , A. Guglielmi , C. Hagner , J. Hernando , D. Hubbard , P. Hurst , N. Hyett , E. Iacopini , C. Joseph , F. Juget , M. Kirsanov , O. Klimov , J. Kokkonen , A. Kovzelev , A. Krasnoperov (1) , V E. Kuznetsov , S. Lacaprara , C. Lachaud , B. Lakic , A. Lanza , L. La Rotonda , M. Laveder , A. Letessier-Selvon , J M. Levy , L. Linssen , A. Ljubicic , J. Long , A. Lupi , A. Marchionni , F. Martelli , X. Mechain , J.P. Mendiburu (1) , J P. Meyer , M. Mezzetto , S R. Mishra , G F. Moorhead , P. Nedelec (1) , Yu. Nefedov , C. Nguyen-Mau , D. Orestano , F. Pastore , L S. Peak , E. Pennacchio , H. Pessard (1) , R. Petti , A. Placci , A. Pluquet , A. Polayrush , G. Polesello , D. Pollmann , B. Popov , C. Poulsen , P. Rathouit , J. Rico , P. Riemann , C. Roda , A. Rubbia , F. Salvatore , K. Schahmaneche , B. Schmidt , T. Schmidt , M. Sevior , D. Sillou (1) , F J P. Soler , Gabriella Sozzi , D. D. Steele , M. Steininger , U. Stiegler , M. Stipcevic , T. Stolarczyk , M. Tareb-Reyes , G N. Taylor , A. Toropin , a M. Touchard , S N. Tovey , M T. Tran , E. Tsesmelis , J. Ulrichs , L. Vacavant , M. Valdata-Nappi , V. Valuev (1) , F. Vannucci , K E. Varvell , M. Veltri , V. Vercesi , J M. Vieira , T G. Vinogradova , F V. Weber , T. Weisse , F F. Wilson , L J. Winton , B D. Yabsley , H. Zaccone , K. Zuber , P. Zuccon
P. Astier
  • Function : Author
D. Autiero
  • Function : Author
A. Baldisseri
  • Function : Author
M. Baldo-Ceolin
  • Function : Author
G. Ballocchi
  • Function : Author
M. Banner
  • Function : Author
K. Benslama
  • Function : Author
N. Besson
  • Function : Author
I G. Bird
  • Function : Author
B. Blumenfeld
  • Function : Author
F. Bobisut
  • Function : Author
J. Bouchez
  • Function : Author
S. Boyd
  • Function : Author
A. Bueno
  • Function : Author
S. Bunyatov
  • Function : Author
L. Camilleri
  • Function : Author
A. Cardini
  • Function : Author
P W. Cattaneo
  • Function : Author
V. Cavasinni
  • Function : Author
A. Cervera-Villanueva
  • Function : Author
G. Collazuol
  • Function : Author
G. Conforto
  • Function : Author
C. Conta
  • Function : Author
M. Contalbrigo
  • Function : Author
R. Cousins
  • Function : Author
D. Daniels
  • Function : Author
H. Degaudenzi
  • Function : Author
T. del Prete
  • Function : Author
A. de Santo
  • Function : Author
T. Dignan
  • Function : Author
L. Di Lella
  • Function : Author
E Silva E. Do Couto
  • Function : Author
J. Dumarchez
  • Function : Author
M. Ellis
  • Function : Author
G J. Feldman
  • Function : Author
R. Ferrari
  • Function : Author
D. Ferrhre
  • Function : Author
V. Flaminio
  • Function : Author
M. Fraternali
  • Function : Author
E. Gangler
  • Function : Author
A. Geiser
  • Function : Author
D. Geppert
  • Function : Author
D. Gibin
  • Function : Author
S. Gninenko
  • Function : Author
A. Godley
  • Function : Author
J. J. Gomez-Cadenas
  • Function : Author
J. Gosset
  • Function : Author
C. Gossling
  • Function : Author
A. Grant
  • Function : Author
G. Graziani
  • Function : Author
A. Guglielmi
  • Function : Author
C. Hagner
  • Function : Author
J. Hernando
  • Function : Author
D. Hubbard
  • Function : Author
P. Hurst
  • Function : Author
N. Hyett
  • Function : Author
E. Iacopini
  • Function : Author
C. Joseph
  • Function : Author
F. Juget
  • Function : Author
M. Kirsanov
  • Function : Author
O. Klimov
  • Function : Author
J. Kokkonen
  • Function : Author
A. Kovzelev
  • Function : Author
V E. Kuznetsov
  • Function : Author
S. Lacaprara
  • Function : Author
C. Lachaud
  • Function : Author
B. Lakic
  • Function : Author
A. Lanza
  • Function : Author
L. La Rotonda
  • Function : Author
M. Laveder
  • Function : Author
A. Letessier-Selvon
J M. Levy
  • Function : Author
L. Linssen
  • Function : Author
A. Ljubicic
  • Function : Author
J. Long
  • Function : Author
A. Lupi
  • Function : Author
A. Marchionni
  • Function : Author
F. Martelli
  • Function : Author
X. Mechain
  • Function : Author
J P. Meyer
  • Function : Author
M. Mezzetto
  • Function : Author
S R. Mishra
  • Function : Author
G F. Moorhead
  • Function : Author
Yu. Nefedov
  • Function : Author
C. Nguyen-Mau
  • Function : Author
D. Orestano
  • Function : Author
F. Pastore
  • Function : Author
L S. Peak
  • Function : Author
E. Pennacchio
  • Function : Author
R. Petti
  • Function : Author
A. Placci
  • Function : Author
A. Pluquet
  • Function : Author
A. Polayrush
  • Function : Author
G. Polesello
  • Function : Author
D. Pollmann
  • Function : Author
B. Popov
C. Poulsen
  • Function : Author
P. Rathouit
  • Function : Author
J. Rico
P. Riemann
  • Function : Author
C. Roda
  • Function : Author
A. Rubbia
  • Function : Author
F. Salvatore
  • Function : Author
K. Schahmaneche
  • Function : Author
B. Schmidt
  • Function : Author
T. Schmidt
  • Function : Author
M. Sevior
  • Function : Author
F J P. Soler
  • Function : Author
Gabriella Sozzi
  • Function : Author
D. D. Steele
  • Function : Author
M. Steininger
  • Function : Author
U. Stiegler
  • Function : Author
M. Stipcevic
  • Function : Author
T. Stolarczyk
M. Tareb-Reyes
  • Function : Author
G N. Taylor
  • Function : Author
A. Toropin
  • Function : Author
a M. Touchard
  • Function : Author
S N. Tovey
  • Function : Author
M T. Tran
  • Function : Author
E. Tsesmelis
  • Function : Author
J. Ulrichs
  • Function : Author
L. Vacavant
  • Function : Author
M. Valdata-Nappi
  • Function : Author
F. Vannucci
  • Function : Author
K E. Varvell
  • Function : Author
M. Veltri
  • Function : Author
V. Vercesi
  • Function : Author
J M. Vieira
  • Function : Author
T G. Vinogradova
  • Function : Author
F V. Weber
  • Function : Author
T. Weisse
  • Function : Author
F F. Wilson
  • Function : Author
L J. Winton
  • Function : Author
B D. Yabsley
  • Function : Author
H. Zaccone
  • Function : Author
K. Zuber
  • Function : Author
P. Zuccon
  • Function : Author

Abstract

Updated results from the appearance searches for $\numunutau$ and $\nuenutau$ oscillations in the full NOMAD data sample are reported. The increased data and the use of more refined kinematic schemes for the $\nutau$ 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 $\sin^22\theta_{\mu\tau} - \Delta m^2$ plane which includes $\sin^22\theta_{\mu\tau}\ \ 4.4\times10^{-4}$ at large $\Delta m^2$ and $\Delta m^2 0.8$ eV$^2$/$c^4$ at $\sin^22\theta_{\mu \tau}=1$. The corresponding contour in the $\nuenutau$ oscillation hypothesis results in $\sin^22\theta_{e\tau}\ \ 2.2\times10^{-2}$ at large $\Delta m^2$ and $\Delta m^2 6.5$ eV$^2$/$c^4$ at $\sin^22\theta_{e \tau}=1$
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Dates and versions

in2p3-00005741 , version 1 (04-08-2000)

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  • HAL Id : in2p3-00005741 , version 1

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P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, G. Ballocchi, et al.. Updated results from the $\nu_{\tau}$ appearance search in Nomad. Physics Letters B, 2000, 483, pp.387-404. ⟨in2p3-00005741⟩
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