Search for nucleon decay into charged antilepton plus meson in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>0.316</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mtext>megaton</mml:mtext><mml:mo>·</mml:mo><mml:mtext>years</mml:mtext></mml:mrow></mml:math> exposure of the Super-Kamiokande water Cherenkov detector

We have searched for proton decays into a charged antilepton (${e}^{+}$, ${\ensuremath{\mu}}^{+}$) plus a meson ($\ensuremath{\eta}$, ${\ensuremath{\rho}}^{0}$, $\ensuremath{\omega}$) and for neutron decays into a charged antilepton (${e}^{+}$, ${\ensuremath{\mu}}^{+}$) plus a meson (${\ensuremath{\pi}}^{\ensuremath{-}}$, ${\ensuremath{\rho}}^{\ensuremath{-}}$) using Super-Kamiokande I-IV data, corresponding to $0.316\text{ }\text{ }\text{megaton}\ifmmode\cdot\else\textperiodcentered\fi{}\text{years}$ of exposure. This measurement updates the previous published result by using 2.26 times more data and improved analysis methods. No significant evidence for nucleon decay is observed and lower limits on the partial lifetime of the nucleon are obtained. The limits range from $3\ifmmode\times\else\texttimes\fi{}{10}^{31}$ to $1\ifmmode\times\else\texttimes\fi{}{10}^{34}\text{ }\text{ }\text{years}$ at 90% confidence level, depending on the decay mode.