Very long baseline neutrino oscillation experiments for precise measurements of oscillation parameters and search for CP violation

We analyze the prospects of a feasible, very long baseline neutrino oscillation experiment consisting of a conventional horn produced low energy wide band beam and a detector of 500 kT ficlucial mass with modest requirements on event recognition and resolution. Such an experiment is intended primarily to measure CP invariance parameters in the neutrino sector. We analyze the sensitivity of such an experiment. The conclusion is that it will allow determination of the CP parameter delta(CP), if the currently unknown mixing parameter sin(2) 2013 greater than or equal to 0.01, a value about 10 times lower than the present experimental upper limit. Such an experiment has great potential for precise measurements of all parameters in the neutrino mixing matrix including Deltam(32)(2), sin(2)2theta(23), Deltam(21)(2), and the mass ordering of neutrinos through the observation of the matter effect in the v(mu) --> v(e) appearance channel.