Search for nucleon decay via modes favored by supersymmetric grand unification models in Super-Kamiokande-I

We report the results for nucleon decay searches via modes favored by supersymmetric grand unified modelsin Super-Kamiokande. Using 1489 days of full Super-Kamiokande-I data, we searched for p{yields}{nu}K{ sup+}, n{yields}{nu}K{ sup0}, p{yields}{mu}{ sup+}K{ sup0}, and p{yields}e{ sup+}K{ sup0} modes. We found no evidence for nucleon decay in any of these modes. We set lower limits of partial nucleon lifetime 2.3x10{ sup33}, 1.3x10{ sup32}, 1.3x10{ sup33}, and 1.0x10{ sup33} years at 90% confidence level for p{yields}{nu}K{ sup+}, n{yields}{nu}K{ sup0}, p{yields}{mu}{ sup+}K{ sup0}, and p{yields}e{ sup+}K{ sup0} modes, respectively. These results give a strong constraint on supersymmetric grand unification models.