Matches in SemOpenAlex for { <https://semopenalex.org/work/W4221030478> ?p ?o ?g. }
- W4221030478 abstract "Feebly interacting particles with masses with $mathcal{O}(10--100)text{ }text{ }mathrm{MeV}$ can be copiously produced by core-collapse supernovae (SNe). In this paper we consider the case of MeV-ish sterile neutrinos and dark photons mixed with ordinary neutrinos and photons, respectively. Furthermore, both sterile neutrinos and dark photons may decay into positrons on their route to Earth. Such positrons would annihilate with electrons in the Galactic medium and contribute to the photon flux in the 511 keV line. Using the spectrometer on INTEGRAL observation of this line improves the bounds on the mixing parameters for these particles by several orders of magnitude below what is already excluded by the SN 1987A energy-loss argument." @default.
- W4221030478 created "2022-04-03" @default.
- W4221030478 creator A5008308885 @default.
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- W4221030478 creator A5059868607 @default.
- W4221030478 creator A5061209912 @default.
- W4221030478 creator A5089629298 @default.
- W4221030478 date "2022-03-29" @default.
- W4221030478 modified "2023-10-16" @default.
- W4221030478 title "511 keV line constraints on feebly interacting particles from supernovae" @default.
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