Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon
nucl-ex
/ Authors
Tetsuya Ohnishi, Toshiyuki Kubo*, Kensuke Kusaka, Atsushi Yoshida, Koichi Yoshida, Masao Ohtake, Naoki Fukuda, Hiroyuki Takeda, Daisuke Kameda, Kanenobu Tanaka
and 50 more authors
Naohito Inabe, Yoshiyuki Yanagisawa, Yasuyuki Gono, Hiroshi Watanabe, Hideaki Otsu, Hidetada Baba, Takashi Ichihara, Yoshitaka Yamaguchi, Maya Takechi, Shunji Nishimura, Hideki Ueno, Akihiro Yoshimi, Hiroyoshi Sakurai, Tohru Motobayashi, Taro Nakao, Yutaka Mizoi, Masafumi Matsushita, Kazuo Ieki, Nobuyuki Kobayashi, Kana Tanaka, Yosuke Kawada, Naoki Tanaka, Shigeki Deguchi
/ Abstract
A search for new isotopes using in-flight fission of a 345 MeV/nucleon 238U beam has been carried out at the RI Beam Factory at the RIKEN Nishina Center. Fission fragments were analyzed and identified by using the superconducting in-flight separator BigRIPS. We observed 45 new neutron-rich isotopes: 71Mn, 73,74Fe, 76Co, 79Ni, 81,82Cu, 84,85Zn, 87Ga, 90Ge, 95Se, 98Br, 101Kr, 103Rb, 106,107Sr, 108,109Y, 111,112Zr, 114,115Nb, 115,116,117Mo, 119,120Tc, 121,122,123,124Ru, 123,124,125,126Rh, 127,128Pd, 133Cd, 138Sn, 140Sb, 143Te, 145I, 148Xe, and 152Ba.