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A solution of the strong CP problem via the Peccei-Quinn mechanism through the Nieh-Yan modified gravity and cosmological implications
Massimiliano Lattanzi, Simone Mercuri
By identifying the recently introduced Barbero-Immirzi field with the QCD axion, the strong CP problem can be solved through the Peccei-Quinn mechanism. A specific energy scale for…
Model independent constraints on mass-varying neutrino scenarios
Urbano Franca, Massimiliano Lattanzi, Julien Lesgourgues +1
Models of dark energy in which neutrinos interact with the scalar field supposed to be responsible for the acceleration of the universe usually imply a variation of the neutrino ma…
Constraining the Sommerfeld enhancement with Cherenkov telescope observations of dwarf galaxies
Lidia Pieri, Massimiliano Lattanzi, Joseph Silk
The presence of dark matter in the halo of our galaxy could be revealed through indirect detection of annihilation products. Dark matter annihilation is one of the possible interpr…