Pre-published on:
March 28, 2018
Published on:
April 05, 2018
Abstract
In this talk following two points are presented which KamLAND has made a special contribution to the studies of neutrinos and the related field; 1) Discovery of the reactor antineutrino oscillation and the precise measurement of the oscillation parameters which lead to a complete solution to the solar neutrino problem, and 2) the first challenge of the detection of the geologically produced antineutrinos (geoneutrinos) which initiated ``Neutrino Geoscience''.