Measurements on diproton emission from the break-up channels of 23Al and 22Mg

Authors :: Ma, YuGang
Fang, DeQing
Sun, XiaoYan
Zhou, Pei
Cai, XiangZhou
Chen, JinGen
Guo, Wei
Tian, WenDong
Wang, HongWei
Zhang, GuoQiang
Cao, XiGuang
Fu, Yao
Hu, ZhengGuo
Wang, JianSong
Wang, Meng
Togano, Y.
Aoi, N.
Baba, H.
Honda, T.
Okada, K.
Hara, Y.
Ieki, K.
Ishibashi, Y.
Itou, Y.
Iwasa, N.
Kanno, S.
Kawabata, T.
Kimura, H.
Kondo, Y.
Kurita, K.
Kurokawa, M.
Moriguchi, T.
Murakami, H.
Oishi, H.
Ota, S.
Ozawa, A.
Sakurai, H.
Shimoura, S.
Shioda, R.
Takeshita, E.
Takeuchi, S.
Yamada, K.
Yamada, Y.
Yasuda, Y.
Yoneda, K.
Motobayashi, T.
Source :: SCIENCE CHINA Physics, Mechanics & Astronomy; August 2011, Vol. 54 Issue: Supplement 1 p18-23, 6p
Publication Year :: 2011
Abstract: Abstract: Two-proton relative momentum distributions from the break-up channels <superscript>23</superscript>Al→p+p+<superscript>21</superscript>Na and <superscript>22</superscript>Mg→p+p+<superscript>20</superscript>Ne at an energy of 60–70 A MeV have been measured together with two-proton opening angles at the projectile fragment separator beamline (RIPS) in the RIKEN Ring Cyclotron Facility. The results demonstrate the existence of diproton emission component from single-step <superscript>2</superscript>He for highly excited <superscript>23</superscript>Al and <superscript>22</superscript>Mg.