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Weak-scale hidden sector and energy transport in fireball models of gamma-ray bursts

Durmuş A. Demir

Herman J. Mosquera Cuesta

  • The Abdus Salam International Centre for Theoretical Physics, I-34100 Trieste, Italy

  • The Abdus Salam International Centre for Theoretical Physics, I-34100 Trieste, Italy,
  • Centro Brasileiro de Pesquisas Físicas, Laboratório de Cosmologia e Física Experimental de Altas Energias, Rua Dr. Xavier Sigaud 150, CEP 22290-180 Urca, Rio de Janeiro, RJ, Brazil,
  • Centro Latinoamericano de Física (CLAF), Avenida Wenceslau Braz 173, Botafogo, Rio de Janeiro, RJ, Brazil

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Phys. Rev. D 64, 043003 – Published 26 July, 2001

DOI: https://doi.org/10.1103/PhysRevD.64.043003

Abstract

The annihilation of pairs of very weakly interacting particles in the neighborhood of gamma-ray sources is introduced here as a plausible mechanism to overcome the baryon load problem. Our approach uses the weak-scale hidden sector models in which the Higgs sector of the standard model is extended to include a gauge singlet that only interacts with the Higgs particle. The singlet of the model is shown to be capable of explaining how these very high energy gamma-ray bursts (GRBs) can be powered at the onset of very energetic events such as supernovae (collapsars) explosions, or coalescences of binary neutron stars. Part of the singlets are converted to photons to reproduce the observed electromagnetic spectrum, and the remaining amount contributes to the dark matter distribution in the interstellar medium. The mass of the singlet needed to reproduce the GRBs coincides with the one needed for the self-interacting dark matter.

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Phys. Rev. D 64, 043003– Published 26 July, 2001
  • Received 1 March 2001

© 2001 American Physical Society

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