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Citations

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Grant support

We would like to thank A. Poves, F. Nowacki, and L. M. Robledo for useful discussions. This project has received funding from the European Unions Horizon 2020 research and innovation program under theMarie SkodowskaCurie Grant Agreement No. 839847. The work of TRR was supported by the Spanish MICINN under PGC2018-094583-B-I00, and, in part, by the ExtreMe Matter Institute EMMI at the GSI-Darmstadt, Germany. We acknowledge the computer resources and assistance provided by GSI-Darmstadt, TU-Darmstadt, and Centro de Computacin Cientfica-Universidad Autnoma de Madrid (CCC-UAM) computing facilities.

Analysis of institutional authors

Bally, BAuthorRodriguez, TrAuthor

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November 29, 2021
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Article
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Variational approximations to exact solutions in shell-model valence spaces: Systematic calculations in the sd shell

Publicated to:PHYSICAL REVIEW C. 104 (5): 54306- - 2021-11-01 104(5), DOI: 10.1103/PhysRevC.104.054306

Authors: Sanchez-Fernandez, Adrian; Bally, Benjamin; Rodriguez, Tomas R.;

Affiliations

Ctr Invest Avanzada Fis Fundamental CIAFF UAM, E-28049 Madrid, Spain - Author
Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain - Author

Abstract

We study the ability of variational approaches based on self-consistent mean-field and beyond-mean-field methods to reproduce exact energies and electromagnetic properties of the nuclei defined within the sd-shell valence space using the nontrivial USD Hamiltonian. In particular, Hartree-Fock-Bogoliubov (HFB), variation after particle-number projection (VAPNP), and projected generator coordinate methods (PGCM) are compared to exact solutions obtained by the full diagonalization of the Hamiltonian. We analyze the role played by the proton-neutron (pn) mixing as well as the quadrupole and pairing degrees of freedom (including both isoscalar and isovector channels) in the description of the spectra of even-even, even-odd, and odd-odd nuclei in the whole sd shell.

Keywords

NuclearProjectionRestorationSymmetry

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal PHYSICAL REVIEW C due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2021, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Nuclear and High Energy Physics.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.14. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 1.18 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 8.57 (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-16, the following number of citations:

  • WoS: 6
  • Scopus: 9

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-16:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 4.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.25.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Sanchez-Fernandez, A) and Last Author (RODRIGUEZ FRUTOS, TOMAS RAUL).

the author responsible for correspondence tasks has been Sanchez-Fernandez, A.