Superheavy nuclei produced with actinides targets at RIKEN

In the experimental program aiming to discover the 113th element produced by cold fusion reaction ²⁰⁹Bi(⁷⁰Zn, n)²⁷⁸113, we succeeded to observe three decay chains in 2004, 2005 and 2012. Finally the IUPAC would give the research group the rights of naming and named "Nihonium". For the next, a new program aiming to produce further new elements 119th and 120th via hot fusion reaction was started in collaboration with RIKEN, Oak Ridge National Laboratory (ORNL), Kyushu-Univ., Yamagata-Univ., Osaka-Univ., Niigata-Univ., Tohoku-Univ. and JAEA. The new collaboration group named "nSHE group". In order to study the hot fusion reaction with higher efficiency, new GAs filled Recoil Ion Separator GARIS-II and GARIS-III which has large acceptance were developed. High intensity Vanadium beam was developed by RIKEN Nishina-center(RNC). And rotating Cm target was also developed in collaboration with ORNL. The nSHE group started to perform the experiment for new 119th element by using ⁵¹V(²⁴⁸Cm, xn)^299-xn119 reaction. The status of the experiment and the future plan will be presented in the workshop.