Jacobian Calabi-Yau 3-fold and charge completeness in six-dimensional theory

We study aspects of an equivalent relation of the charge complete-ness in six-dimensional (6D)N= (1,0) supergravity theory and a standard assumption on the global structure of the gauge group involving F-theory geometry, recently proved by Morrison and Tay-lor. We constructed and analyzed a novel 6D supergravity theory, realized as F-theory, on an elliptically fibered Calabi-Yau 3-fold.Our construction yields a novel 6D theory with Mordell-Weil tor-sion Z(4)circle plus Z(4). Furthermore, we deduce the gauge group and matterfields arising in the 6D F-theory model on the constructed elliptically fibered Calabi-Yau 3-fold. We also discuss the relations of the6D F-theory model constructed in this study to stable degeneration and the dual heterotic string