Nuclear-matter distribution in the proton-rich nuclei 7Be and 8B from intermediate energy proton elastic scattering in inverse kinematics
| Autor: | Alexei Khanzadeev, A. V. Dobrovolsky, G.A. Korolev, Yu. A. Litvinov, V. Volkov, Alfredo Estrade, P. Egelhof, J. Kurcewicz, G. E. Petrov, G. D. Alkhazov, Y. Ke, Herbert A. Simon, L.O. Sergeev, I. Dillmann, Hans Geissel, A. Prochazka, S. Tang, An.A. Vorobyov, S. Ilieva, F. Farinon, V. I. Yatsoura, O.A. Kiselev, Helmut Weick, X.C. Le, A.G. Inglessi, Gianluca Colò, C. Scheidenberger, M. Takechi |
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| Rok vydání: | 2019 |
| Předmět: |
Elastic scattering
Physics Nuclear and High Energy Physics Nuclear Theory Proton 010308 nuclear & particles physics Scattering FOS: Physical sciences Radius Nuclear matter 01 natural sciences Nuclear Theory (nucl-th) Nuclear physics Recoil 0103 physical sciences Halo Nuclear Experiment (nucl-ex) Nuclear Experiment 010306 general physics Glauber |
| Zdroj: | Nuclear Physics A. 989:40-58 |
| ISSN: | 0375-9474 |
| Popis: | Absolute differential cross sections for elastic $p^7$Be and $p^8$B small-angle scattering were measured in inverse kinematics at an energy of 0.7 GeV/u at GSI Darmstadt. The hydrogen-filled ionization chamber IKAR was used as an active target to detect the recoil protons. The projectile tracking and isotope identification were performed with multi-wire proportional chambers and scintillation detectors. The measured cross sections were analysed using the Glauber multiple-scattering theory. The root-mean-square (rms) nuclear matter radii $R_{\rm m} = 2.42 (4)$ fm for $^7$Be and $R_{\rm m} = 2.58 (6)$ fm for $^8$B were obtained. The radial density distribution deduced for $^8$B exhibits a proton halo structure with the rms halo radius $R_{\rm h} = 4.24 (25)$ fm. A comparison of the deduced experimental radii is displayed with existing experimental and theoretical data. 18 pages, 6 figures. arXiv admin note: text overlap with arXiv:1803.02044 |
| Databáze: | OpenAIRE |
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