LMA parameters and non-zero $U_{e3}$ effects on atmospheric $\nu$ data?

Abstract

We study the possible manifestation of the interference between the effects produced in the atmospheric neutrinos due to oscillation driven by the solar parameters parameters $\Delta m_{21}^2$, ${\sin }^{2}2{\theta }_{21}$ and due to oscillation driven by $U_{e3}$.

Comments: 3 pages, 2 figures. to appear in Proc. of TAUP2001 conference, Laboratori Nazionali del Gran Sasso, Sept. 2001