Figure 1

$S(T)$ versus $T$ for ${\theta }_{13}=0°$ (left panel) and ${\theta }_{13}=12.3°$ (right panel).Reuse & Permissions

Figure 2

Probability folded with detector response function and neutrino cross-sections as the function of recoil electron kinetic energy.Reuse & Permissions

Figure 3

The recoil electron spectrum normalized to SSM in the bins of 0.5 MeV ($\mathcal{S}$). The SK data with statistical errors is also shown for comparison.Reuse & Permissions

Figure 4

$R(E_{\mathrm{obs}})$ versus $E_{\mathrm{obs}}$.Reuse & Permissions

Figure 5

The rise-up $\mathcal{R}$ in the total ($\mathrm{\text{day}}+\mathrm{\text{night}}$) SSM normalized rate versus ${\theta }_{12}$ for the central and $1\sigma$ upper/lower values of $\Delta m^2$. The solar mixing angle ${\theta }_{12}$ has been varied over its $1\sigma$ range.Reuse & Permissions

Figure 6

Improvements in the upper bound on $\mathcal{R}$ with increased statistics with present (left panel) and half of the present (right panel) systematic errors. The solid, dashed and dotted lines are the upper bounds at 1, 2 and $3\sigma$ C.L.Reuse & Permissions

Figure 7

(a) Confidence levels for the measurement of $\mathcal{R}$ with increase in statistics for present systematic errors (left panel). (b) Confidence levels for the measurement of $\mathcal{R}$ with increase in statistics for half of the present systematic errors (right panel). The solid, dashed and dotted lines are for $\mathcal{R}=0.10$, 0.15 and 0.20.Reuse & Permissions

Figure 8

Constant $\mathcal{S}$ and $\mathcal{R}$ plots.Reuse & Permissions