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

Drissi, M., Duguet, T. and Soma, V. (2020) Renormalization of pionless effective field theory in the A-body sector European Physical Journal A, 56 (119).

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Abstract

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 the observables. 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.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Physics
Authors :	Name Email ORCID Drissi, M. m.drissi@surrey.ac.uk Duguet, T. Soma, V.
Date :	23 April 2020
Funders :	UK Science and Technology Facilities Council
DOI :	10.1140/epja/s10050-020-00097-w
Grant Title :	UK STFC Grant
Copyright Disclaimer :	This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Depositing User :	James Marshall
Date Deposited :	01 Jun 2020 10:33
Last Modified :	01 Jun 2020 10:33
URI:	http://epubs.surrey.ac.uk/id/eprint/857020

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