Two-body contributions to the effective mass in nuclear effective interactions
| Autor: | Davesne, D., Navarro, J., Meyer, J., Bennaceur, K., Pastore, A. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. C 97, 044304 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.97.044304 |
| Popis: | Starting from general expressions of well-chosen symmetric nuclear matter quantities derived for both zero- and finite-range effective theories, we derive the contributions to the effective mass. We first show that, independently of the range, the two-body contribution is enough to describe correctly the saturation mechanism but gives an effective mass value around $m^*/m \simeq 0.4$. Then, we show that the full interaction (by instance, an effective two-body density-dependent term on top of the pure two-body term) is needed to reach the accepted value $m^*/m \simeq 0.7-0.8$. Comment: Minor typos fixed |
| Databáze: | arXiv |
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