The minimal axion minimal linear σ model

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Cited 11 times in Scopus logo

Cited 11 times in Web of Science logo

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Impact on the Sustainable Development Goals (SDGs)

Analysis of institutional authors

Merlo LAuthor

October 19, 2020

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Article

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Publicated to:EUROPEAN PHYSICAL JOURNAL C. 78 (5): - 2018-05-01 78(5), DOI: 10.1140/epjc/s10052-018-5892-z

Authors: Merlo L; Pobbe F; Rigolin S

Affiliations

Istituto Nazionale Di Fisica Nucleare, Sezione di Padova - Author

Universidad Autónoma de Madrid - Author

Abstract

© 2018, The Author(s). The minimal SO(5) / SO(4) linear σ model is extended including an additional complex scalar field, singlet under the global SO(5) and the Standard Model gauge symmetries. The presence of this scalar field creates the conditions to generate an axion à la KSVZ, providing a solution to the strong CP problem, or an axion-like-particle. Different choices for the PQ charges are possible and lead to physically distinct Lagrangians. The internal consistency of each model necessarily requires the study of the scalar potential describing the SO(5) → SO(4) , electroweak and PQ symmetry breaking. A single minimal scenario is identified and the associated scalar potential is minimised including counterterms needed to ensure one-loop renormalizability. In the allowed parameter space, phenomenological features of the scalar degrees of freedom, of the exotic fermions and of the axion are illustrated. Two distinct possibilities for the axion arise: either it is a QCD axion with an associated scale larger than ∼ 10 5 TeV and therefore falling in the category of the invisible axions; or it is a more massive axion-like-particle, such as a 1 GeV axion with an associated scale of ∼ 200 TeV, that may show up in collider searches.

Keywords

Astronomia / físicaBiotecnologíaEngenharias iiiEngenharias ivEngineering (miscellaneous)EnsinoInterdisciplinarMatemática / probabilidade e estatísticaPhysics and astronomy (miscellaneous)Physics, particles & fields

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal EUROPEAN PHYSICAL JOURNAL C due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2018, it was in position 7/29, thus managing to position itself as a Q1 (Primer Cuartil), in the category Physics, Particles & Fields.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 4.47, which 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: Dimensions Aug 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-08-18, the following number of citations:

WoS: 11
Scopus: 11

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 2025-08-18:

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:

The work has been submitted to a journal whose editorial policy allows open Open Access publication.
Additionally, the work has been submitted to a journal classified as Diamond in relation to this type of editorial policy.
Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://repositorio.uam.es/handle/10486/684087

Continuing with the social impact of the work, it is important to emphasize that, due to its content, it can be assigned to the area of interest of ODS 16 - Promote peaceful and inclusive societies for sustainable development, provide access to justice for all and build effective, accountable and inclusive institutions at all levels, with a probability of 78% according to the mBERT algorithm developed by Aurora University.

Leadership analysis of institutional authors