Phys.Rev.Lett. 121, 262502 (2018)

S.Leblond, F.M.Marques, J.Gibelin, N.A.Orr, Y.Kondo, T.Nakamura, J.Bonnard, N.Michel, N.L.Achouri, T.Aumann, H.Baba, F.Delaunay, Q.Deshayes, P.Doornenbal, N.Fukuda, J.W.Hwang, N.Inabe, T.Isobe, D.Kameda, D.Kanno, S.Kim, N.Kobayashi, T.Kobayashi, T.Kubo, J.Lee, R.Minakata, T.Motobayashi, D.Murai, T.Murakami, K.Muto, T.Nakashima, N.Nakatsuka, A.Navin, S.Nishi, S.Ogoshi, H.Otsu, H.Sato, Y.Satou, Y.Shimizu, H.Suzuki, K.Takahashi, H.Takeda, S.Takeuchi, R.Tanaka, Y.Togano, A.G.Tuff, M.Vandebrouck, K.Yoneda

First Observation of ²⁰B and ²¹B

NUCLEAR REACTIONS ¹²C(²²N, 2p)²⁰B, E=225 MeV/nucleon; ¹²C(²²C, p)²¹B, E=233 MeV/nucleon; measured reaction products; deduced energy levels, J, π, one- and two-neutron separation energies. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.121.262502