تقرير
Resonances and collisional properties of neutron-rich helium isotopes in the adiabatic hyperspherical representation
| العنوان: | Resonances and collisional properties of neutron-rich helium isotopes in the adiabatic hyperspherical representation |
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| المؤلفون: | Higgins, Michael D., Greene, Chris H. |
| سنة النشر: | 2024 |
| المجموعة: | Nuclear Theory Quantum Physics |
| مصطلحات موضوعية: | Nuclear Theory, Quantum Physics |
| الوصف: | This work treats few-body systems consisting of neutrons interacting with a $^{4}{\mathrm{He}}$ nucleus. The adiabatic hyperspherical representation is utilized to solve the $N$-body Schr$\ddot{\mathrm{o}}$dinger equation for the three- and four-body systems, treating both $^{6}{\mathrm{He}}$ and $^{7}{\mathrm{He}}$ nuclei. A simplified central potential model for the $^{4}{\mathrm{He}}-n$ interaction is used in conjunction with a spin-dependent three-body interaction to reproduce $^{6}{\mathrm{He}}$ bound-state and resonance properties as well as properties for the $^{8}{\mathrm{He}}$ nucleus in its ground-state. With this Hamiltonian, the adiabatic hyperspherical representation is used to compute bound and scattering states for both $^{6}{\mathrm{He}}$ and $^{7}{\mathrm{He}}$ nuclei. For the $^{6}{\mathrm{He}}$ system, the electric quadrupole transition between the $0^{+}$ and $2^{+}$ state is investigated. For the $^{7}{\mathrm{He}}$ system, $^{6}{\mathrm{He}}+n$ elastic scattering is investigated along with the four-body recombination process $^{4}{\mathrm{He}}+n+n+n\rightarrow$$^{6}{\mathrm{He}}+n$ and breakup process $^{6}{\mathrm{He}}+n\rightarrow$$^{4}{\mathrm{He}}+n+n+n$. Comment: 13 pages, 9 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.17668 |
| رقم الأكسشن: | edsarx.2407.17668 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |