Solar Neutrino Observables Sensitive to Matter Effects

Table 2

The Δ𝜒² minimum of 𝐴_MSW, the allowed regions of 𝐴_MSW at 1𝜎, and 3𝜎 CL are shown in the first, second, and third columns, respectively, for the analyses with the currently available data (first row), the one with spectrum upturn of ⁸B neutrinos at 3𝜎 added to the current data (second row), the one with ⁷Be and pep neutrinos with 5% and 3% accuracies, respectively, added to the current data (third row), the one with the new spectral information in the second and the third rows added to the current data (fourth row), and the one with day-night asymmetry of ⁸B neutrinos at 3𝜎 added to the current data (fifth row). The last row presents results of global analysis with all the above data. The numbers in parentheses imply the ones obtained with improved knowledge of 𝜃₁₂; see text for details.

Analysis	Δ𝜒^2 minimum	Allowed region (1𝜎)	Allowed region (3𝜎)
present data	𝐴MSW=1.47	1.05–2.01 (1.05–2.00)	0.65–3.35 (0.65–3.27)
+upturn (3𝜎)	1.34	1.02–1.79 (1.02–1.76)	0.65–3.00 (0.66–2.88)
+^7Be (5%), pep (3%)	1.25	0.97–1.53 (0.97–1.52)	0.65–2.34 (0.65–2.31)
+spectral shape	1.22	0.97–1.49 (0.97–1.46)	0.65–2.23 (0.65–2.12)
+𝐴DN (3𝜎)	1.17	0.96–1.43 (0.96–1.42)	0.66–1.98 (0.66–1.97)
+all	1.12	0.95–1.33 (0.95–1.32)	0.67–1.78 (0.67–1.73)