10 papers
Ruling Out Spiky WIMP Dark Matter using Indirect Searches
Dibya S. Chattopadhyay, P. S. Bhupal Dev, Yago Porto
The dark matter (DM) density profile in the innermost region of the Galaxy remains an open question. In particular, while adiabatic growth of the supermassive black hole Sgr A$^\as…
Constraint on Pseudo-Dirac Neutrinos
Chee Sheng Fong, Yago Porto
After the electroweak symmetry breaking, we can write down two types of mass for the Standard Model neutrinos, Dirac or Majorana. It is often said that both types of mass cannot be…
Expected flavor composition of supernova neutrinos
Antonio Capanema, Yago Porto, Maria Manuela Saez
We revisit the flavor composition of neutrinos from core-collapse supernovae (SN), focusing on robust predictions that are insensitive to the poorly known dynamics of collective fl…
Flavor Matters, but Matter Flavors: Matter Effects on Flavor Composition of Astrophysical Neutrinos
P. S. Bhupal Dev, Sudip Jana, Yago Porto
We show that high-energy astrophysical neutrinos produced in the cores of heavily obscured active galactic nuclei (AGNs) can undergo strong matter effects, thus significantly influ…
Signatures of quasi-Dirac neutrinos in diffuse high-energy astrophysical neutrino data
Kiara Carloni, Yago Porto, Carlos A. Argüelles +2
Although the sources of astrophysical neutrinos are still unknown, they are believed to be produced by a population of sources in the distant universe. Measurements of the diffuse,…
Constraining the pseudo-Dirac nature of neutrinos using astrophysical neutrino flavor data
Chee Sheng Fong, Yago Porto
The three Standard Model neutrinos can have Majorana mass or strictly Dirac mass, but both scenarios are practically indistinguishable in neutrino oscillation experiments. If they…