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Journal articles
Second-order equation of state with the full Skyrme interaction: toward new effective interactions for beyond mean-field models
Abstract : In a quantum Fermi system the energy per particle calculated at the second order beyond the mean-field approximation diverges if a zero-range interaction is employed. We have previously analyzed this problem in symmetric nuclear matter by using a simplified nuclear Skyrme interaction, and proposed a strategy to treat such a divergence. In the present work, we extend the same strategy to the case of the full nuclear Skyrme interaction. Moreover we show that, in spite of the strong divergence ($\sim$ $\Lambda^5$, where $\Lambda$ is the momentum cutoff) related to the velocity-dependent terms of the interaction, the adopted cutoff regularization can be always simultaneously performed for both symmetric and nuclear matter with different neutron-to-proton ratio. This paves the way to applications to finite nuclei.
http://hal.in2p3.fr/in2p3-00697623
Contributor : Sophie Heurteau Connect in order to contact the contributor
Submitted on : Tuesday, May 15, 2012 - 5:12:26 PM
Last modification on : Tuesday, November 30, 2021 - 8:32:05 AM
Contributor : Sophie Heurteau Connect in order to contact the contributor
Submitted on : Tuesday, May 15, 2012 - 5:12:26 PM
Last modification on : Tuesday, November 30, 2021 - 8:32:05 AM
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