تقرير
Study of the alpha-particle monopole transition form factor
| العنوان: | Study of the alpha-particle monopole transition form factor |
|---|---|
| المؤلفون: | Viviani, M., Kievsky, A., Marcucci, L. E., Girlanda, L. |
| سنة النشر: | 2024 |
| المجموعة: | Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory |
| الوصف: | The 4He monopole form factor is studied by computing the transition matrix element of the electromagnetic charge operator between the 4He ground-state and the p+3H and n+3He scattering states. The nuclear wave functions are calculated using the hyperspherical harmonic method, by starting from Hamiltonians including two- and three-body forces derived in chiral effective field theory. The electromagnetic charge operator retains, beyond the leading order (impulse approximation) term, also higher order contributions, as relativistic corrections and meson-exchange currents. The results for the monopole form factor are in fairly agreement with recent MAMI data. Comparison with other theoretical calculations are also provided. Comment: 22 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.00653 |
| رقم الأكسشن: | edsarx.2406.00653 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |