2 papers
hep-ph2026
Dark Matter in Multi-Singlet Extensions of the Standard Model
Maria Gonçalves, Margarete Mühlleitner, Rui Santos +1
We study the simplest extensions of the Standard Model (SM) that provide Dark Matter (DM) candidates, built with the addition of real singlets and new symmetries. I…
gr-qc2026
Covariant conservation laws, local invariance and Noether's second theorem
Nuno Barros e Sá, Miguel A. S. Pinto, Tomás Trindade
We lay down a set of requirements for a field theory to produce a covariant conservation law out of Noether's second theorem, and show that neither local invariance implies a covar…