| Autor: |
S. Ishikawa, H. Geissel, S. Purushothaman, H. Weick, E. Haettner, N. Iwasa, C. Scheidenberger, A.H. Sørensen, Y.K. Tanaka, T. Abel, J. Äystö, S. Bagchi, T. Dickel, V. Drozd, B. Franczak, F. Greiner, M.N. Harakeh, N. Kalantar-Nayestanaki, B. Kindler, R. Knöbel, D. Kostyleva, S. Kraft-Bermuth, N. Kuzminchuk, E. Lamour, B. Lommel, I. Mukha, Z. Patyk, S. Pietri, G. Schaumann, J. Zhao |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Physics Letters B, Vol 846, Iss , Pp 138220- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2023.138220 |
| Popis: |
We have measured for the first time simultaneously both the mean charge states and stopping powers of (35–280) MeV/u 208Pb ions in gases and solids with an accuracy of 1%. The existence at lower energies and disappearance at higher of density effects in the charge-state distribution and the corresponding stopping power are directly confirmed and comparisons with widely used theories and simulations for heavy ions demonstrate strong deviations of up to 27%. However, an unprecedented prediction power of better than 3% has been achieved for the energy loss when the measured mean charge-states are implemented in the Lindhard-Sørensen theory. Our present benchmark data contribute to an improved understanding of the basic atomic collision processes and to numerous applications in nuclear physics. Extending the GANIL data [1] to higher accuracy and energies, we can now answer at which velocities the Bohr-Lindhard density effect in stopping will vanish. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect