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FIZIKA B 18 (2009) 3, 151-164
 
DETERMINING THE SIGN OF D31 BY FUTURE
LONG-BASELINE AND REACTOR EXPERIMENTS
BIPIN SINGH KORANGA, SOUMYA MAHAPATRA and S. UMA SANKAR
Department of Physics, Indian institute of Technology Bombay, Mumbai 400076,
India
Received 22 February 2009; Accepted 2 July 2009
Online 7 October 2009
We study the determination of neutrino mass hierarchy through neutrino
experiments foreseen in the next ten years. The T2K neutrino oscillation
experiment will start in 2009. In the experiment, the high intensity
nm beam from JHF is directed to Super-Kamiokande (SK) detector 295 km away.
The NOnA (off axes neutrino oscillation) experiment is being planned, with the
nm beam from Fermi-Lab directed to a site 610 km away, which is 0, 7 and 14
milliradian off-axes. Both above experiments will measure nm®ne
oscillation probability. The Double-CHOOZ experiment under construction will
detect [`(ne)]s
emitted by nuclear reactors both through a near detector (150 m) and a far
detector (1.05 km) to measure [`(ne)]
®[`(ne)] survival probability. In this paper, we outline a procedure to
determine the sign of D31 from the simulated data of the above experiments.
PACS numbers: 14.60.Lm, 13.15.+g
UDC 539.123
Keywords: neutrino experiment, mass hierarchy, neutrino oscillation
experiments, sign of D31
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