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Journal Articles Physics Letters B Year : 1999

Limits on neutrino oscillations from the CHOOZ experiment

M. Apollonio
  • Function : Author
A. Baldini
  • Function : Author
C. Bemporad
  • Function : Author
E. Caffau
F. Cei
  • Function : Author
B. Dieterle
  • Function : Author
A. Etenko
  • Function : Author
J. George
  • Function : Author
G. Giannini
  • Function : Author
M. Grassi
  • Function : Author
Y. Kozlov
  • Function : Author
W. Kropp
  • Function : Author
M. Laiman
  • Function : Author
C-E. Lane
  • Function : Author
I. Machulin
  • Function : Author
A. Martemyanov
  • Function : Author
V. Martemyanov
  • Function : Author
L. Mikaelian
  • Function : Author
D. Nicolo
  • Function : Author
R. Pazzi
  • Function : Author
G. Pieri
  • Function : Author
L. Price
  • Function : Author
S. Riley
  • Function : Author
R. Reeder
  • Function : Author
A. Sabelnikov
  • Function : Author
G. Santin
  • Function : Author
M. Skorokhvatov
  • Function : Author
H. Sobel
  • Function : Author
J. Steele
  • Function : Author
R. Steinberg
  • Function : Author
S. Sukhotin
  • Function : Author
S. Tomshaw
  • Function : Author

Abstract

We present new results based on the entire CHOOZ data sample. We find (at 90% confidence level) no evidence for neutrino oscillations in the anti_nue disappearance mode, for the parameter region given by approximately Delta m**2 > 7 x 10**-4 eV^2 for maximum mixing, and sin**2(2 theta) = 0.10 for large Delta m**2. Lower sensitivity results, based only on the comparison of the positron spectra from the two different-distance nuclear reactors, are also presented; these are independent of the absolute normalization of the anti_nue flux, the cross section, the number of target protons and the detector efficiencies.

Dates and versions

in2p3-00003694 , version 1 (09-12-1999)

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M. Apollonio, A. Baldini, C. Bemporad, E. Caffau, F. Cei, et al.. Limits on neutrino oscillations from the CHOOZ experiment. Physics Letters B, 1999, 466, pp.415-430. ⟨10.1016/S0370-2693(99)01072-2⟩. ⟨in2p3-00003694⟩
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