Academic Journal
Isospin diffusion from 40,48Ca + 40,48Ca experimental data at Fermi energies: Direct comparisons with transport model calculations
| العنوان: | Isospin diffusion from 40,48Ca + 40,48Ca experimental data at Fermi energies: Direct comparisons with transport model calculations |
|---|---|
| المؤلفون: | Fable, Q, Baldesi, L, Bonnet, B, Bougault, R, Camaiani, A, Casini, G, Ciampi, C, Dueñas Díaz, José Antonio, Frankland, J. D. |
| بيانات النشر: | American Physical Society |
| سنة النشر: | 2024 |
| المجموعة: | Universidad de Huelva: Arias Montano |
| مصطلحات موضوعية: | Nuclear Physics, 2207 Física Atómica y Nuclear |
| الوصف: | This article presents an investigation of isospin equilibration in cross-bombarding 40,48 Ca + 40,48 Ca reactions at 35 MeV/nucleon, by comparing experimental data with filtered transport model calculations. Isospin diffusion is studied using the evolution of the isospin transport ratio with centrality. The asymmetry parameter δ = (N − Z )/A of the quasiprojectile (QP) residue is used as isospin-sensitive observable, while a recent method for impact parameter reconstruction is used for centrality sorting. A benchmark of global observables is proposed to assess the relevance of the antisymmetrized molecular dynamics (AMD) model, coupled to GEMINI++, in the study of dissipative collisions. Our results demonstrate the importance of considering cluster formation to reproduce observables used for isospin transport and centrality studies. Within the AMD model, we prove the applicability of the impact parameter reconstruction method, enabling a direct comparison to the experimental data for the investigation of isospin diffusion. For both, we evidence a tendency to isospin equilibration with an impact parameter decreasing from 9 to 3 fm, while the full equilibration is not reached. A weak sensitivity to the stiffness of the equation of state employed in the model is also observed, with a better reproduction of the experimental trend for the neutron-rich reactions. ; Ciencias Integradas |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://doi.org/10.1103/PhysRevC.109.064605; Fable, Q., Baldesi, L., Barlini, S., Bonnet, E., Borderie, B., Bougault, R., Camaiani, A., Casini, G., Chbihi, A., Ciampi, C., Dueñas, J. A., Frankland, J. D., Génard, T., Gruyer, D., Henri, M., Hong, B., Kim, S., Kordyasz, A. J., … Kozik, T. (2024). Isospin diffusion from 40,48Ca + 40,48Ca experimental data at Fermi energies: Direct comparisons with transport model calculations. In Physical Review C (Vol. 109, Issue 6). American Physical Society (APS). https://doi.org/10.1103/physrevc.109.064605; https://hdl.handle.net/10272/23865 |
| DOI: | 10.1103/physrevc.109.064605 |
| الاتاحة: | https://hdl.handle.net/10272/23865 https://doi.org/10.1103/physrevc.109.064605 |
| Rights: | Atribución-NoComercial-SinDerivadas 3.0 España ; http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ; open access |
| رقم الانضمام: | edsbas.B11EE6DA |
| قاعدة البيانات: | BASE |
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