Search Results for author: Alfredo Urbano

Found 2 papers, 2 papers with code

Edges and Endpoints in 21-cm Observations from Resonant Photon Production

2 code implementations8 Sep 2020 Andrea Caputo, Hongwan Liu, Siddharth Mishra-Sharma, Maxim Pospelov, Joshua T. Ruderman, Alfredo Urbano

Within the context of a kinetically mixed dark photon, we demonstrate how resonant dark photon-to-photon conversions can imprint distinctive spectral features in the observed 21-cm brightness temperature, with implications for current, upcoming, and proposed experiments targeting the cosmic dawn and the dark ages.

Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology

On the Importance of Electroweak Corrections for Majorana Dark Matter Indirect Detection

1 code implementation15 Apr 2011 Paolo Ciafaloni, Marco Cirelli, Denis Comelli, Andrea De Simone, Antonio Riotto, Alfredo Urbano

Recent analyses have shown that the inclusion of electroweak corrections can alter significantly the energy spectra of Standard Model particles originated from dark matter annihilations.

High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics

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