3 papers
hep-ph2026
Cosmological Constraints on Long-Lived Particles Using Dimension-Six Effective Operators
Mickael V. S. de Farias, Rodrigo Holanda, Matheus M. A. Paixao +2
Long-lived particles (LLPs) provide an interesting window into physics beyond the Standard Model, offering characteristic signatures at colliders and in cosmology. In this work, we…
astro-ph.CO2025
A Joint Analysis of Strong Lensing and Type Ia Supernovae to Determine the Hubble Constant
L. R. Colaço, R. F. L. Holanda, Z. C. Santana +1
We present a cosmological model-independent determination of the Hubble constant, , by combining time-delay measurements from seven TDCOSMO systems, Einstein radius measuremen…
hep-ph2025
Brazilian Report on Dark Matter 2024
I. F. M. Albuquerque, J. Alcaniz, A. Alves +51
One of the key scientific objectives for the next decade is to uncover the nature of dark matter (DM). We should continue prioritizing targets such as weakly-interacting massive pa…