Nuclear-matter radius studies from Ni-58(alpha,alpha) experiments at the GSI Experimental Storage Ring with the EXL facility
- Zamora, J. C.
- Aumann, T.
- Bagchi, S.
- Boenig, S.
- Csatlos, M.
- Dillmann, I.
- Dimopoulou, C.
- Egelhof, P.
- Eremin, V.
- Furuno, T.
- Geissel, H.
- Gernhaeuser, R.
- Harakeh, M. N.
- Hartig, A. -L.
- Ilieva, S.
- Kalantar-Nayestanaki, N.
- Kiselev, O.
- Kollmus, H.
- Kozhuharov, C.
- Krasznahorkay, A.
- Kroell, Th.
- Kuilman, M.
- Litvinov, S.
- Litvinov, Yu. A.
- Mahjour-Shafiei, M.
- Mutterer, M.
- Nagae, D.
- Najafi, M. A.
- Nociforo, C.
- Nolden, F.
- Popp, U.
- Rigollet, C.
- Roy, S.
- Scheidenberger, C.
- von Schmid, M.
- Steck, M.
- Streicher, B.
- Stuhl, L.
- Thuerauf, M.
- Uesaka, T.
- Weick, H.
- Winfield, J. S.
- Winters, D.
- Woods, P. J.
- Yamaguchi, T.
- Yue, K.
- Zenihiro, J.
DOIAbstract
A novel method for measuring nuclear reactions in inverse kinematics with stored ion beams was successfully used to extract the nuclear-matter radius of Ni-58. The experiment was performed at the experimental heavy-ion storage ring at the GSI facility using a stored Ni-58 beam at energies of 100 and 150 MeV/u and an internal helium gas-jet target. Elastically scattered a-recoils at low momentum transfers were measured with an in-ring detector system compatible with ultrahigh vacuum. Experimental angular distributions were fitted using density-dependent optical model potentials within the eikonal approximation. This permitted the extraction of the point-matter root-mean-square radius of Ni-58 with an average value of 3.70(7) fm. Results from...
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