| Autor: |
D. M. Seliverstov, A. V. Dobrovolsky, Yu. A. Litvinov, V. I. Yatsoura, R. Kanungo, G. D. Alkhazov, Herbert A. Simon, S. Ilieva, An.A. Vorobyov, M. Górska, Hans Geissel, A.G. Inglessi, O.A. Kiselev, G.A. Korolev, A. V. Khanzadeev, X.C. Le, V.A. Volkov, C. Nociforo, F. Aksouh, A. A. Zhdanov, Helmut Weick, P. Egelhof, L.O. Sergeev, L. V. Chulkov |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Nuclear Physics A. 875:8-28 |
| ISSN: |
0375-9474 |
| Popis: |
In the present work, the differential cross sections for small-angle proton elastic scattering on the 12,14 Be nuclei were measured in inverse kinematics, using secondary radioactive beams with energies near 700 MeV/u produced with the fragment separator FRS at GSI. The main part of the experimental setup was the active target IKAR, which was used simultaneously as a target and a detector for the recoil protons. Auxiliary detectors for projectile tracking and isotope identification completed the setup. The measured differential cross sections were analyzed using the Glauber multiple-scattering theory. For the evaluation of the data several phenomenological nuclear-matter density parametrizations and a sum of Gaussian parametrization were used. The nuclear-matter radii and radial density distributions of the isotopes 12,14 Be were deduced. Extended nuclear-matter density distributions were observed in both isotopes, and the halo structure of 14 Be was confirmed. The results were also compared with microscopic few-body and fermionic molecular dynamics model calculations concerning the structure of these neutron-rich nuclei. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect