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Renormalization of pionless effective field theory in the A-body sector

Current models of inter-nucleon interactions are built within the frame of Effective Field Theories (EFTs). Contrary to traditional nuclear potentials, EFT interactions require a renormalization of their parameters in order to derive meaningful estimations of observable. In this paper, a renormalization procedure is designed in connection with many-body approximations applicable to large-A systems and formulated within the frame of many-body perturbation theory. The procedure is shown to generate counterterms that are independent of the targeted A-body sector. As an example, the procedure is applied to the random phase approximation. This work constitutes one step towards the design of a practical EFT for many-body systems.

preprint2019arXivOpen access
Mehdi DrissiThomas DuguetVittorio Soma
nucl-th
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Open access3 authors1 topic
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Mehdi DrissiThomas DuguetVittorio Soma

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