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@INPROCEEDINGS{Bianco:619158,
      author       = {Bianco, Sara and Schmidt-Hoberg, Kai and Frerick, Jonas and
                      Hufnagel, Marco and Depta, Paul Frederik and Thomas, Hambye},
      title        = {{BBN} photodisintegration limitsfrom neutrino injections},
      reportid     = {PUBDB-2024-07416},
      year         = {2024},
      abstract     = {Constraints on dark sector particles decaying into
                      neutrinos typically focus on their impact on the effective
                      number of relativistic species in the early Universe.
                      However, for heavy relics with longer lifetimes, constraints
                      mainly arise from the photo-disintegration of primordial
                      abundances. The high-energy neutrinos injected by the decay
                      can interact with both the thermal neutrinos and other
                      high-energy neutrinos. Among these interactions,
                      annihilations into electromagnetic particles will induce an
                      electromagnetic cascade that affects the abundances of the
                      already formed light elements via photo-disintegration. In
                      this work, we present constraints on these dark sector
                      particles. Specifically, we implement a Monte Carlo code to
                      simulate the electromagnetic cascade, instead of solving the
                      full set of Boltzmann equations. We find improved bounds on
                      the particle's lifetime, abundance, and mass.},
      month         = {Jul},
      date          = {2024-07-01},
      organization  = {Invisibles24 Workshop, Bologna
                       (Italy), 1 Jul 2024 - 5 Jul 2024},
      cin          = {T},
      cid          = {I:(DE-H253)T-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / HIDDeN
                      - Hunting Invisibles: Dark sectors, Dark matter and
                      Neutrinos (860881)},
      pid          = {G:(DE-HGF)POF4-611 / G:(EU-Grant)860881},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://bib-pubdb1.desy.de/record/619158},
}