Work

Solving the strong CP problem in string-inspired theories with modular invariance

Year: 2025

Type: article

Abstract: A bstract We show that solutions to the strong CP problem based on modular invariance can be extended to incorporate features that appear in string compactifications: quarks with mostly positive modular weights and non-trivial gauge kinetic functions. This requires assuming that singularities and zeroes only appear at special points, such as decompactification limits. We discuss the impact of these assumptions on string gauge unification.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep08(2025)076

Authors: Ferruccio Feruglio, Antonio Marrone, Alessandro Strumia, Arsenii Titov

Institutions: Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Bari, University of Pisa, University of Padua

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: European Commission, Istituto Nazionale di Fisica Nucleare, Ministero dell'Università e della Ricerca

Awards: G3757907674, G4184616848, G598502428, G972786147