Weak-Scale Hidden Sector and Energy Transport in Fireball Models of Gamma-Ray Bursts

Details Weak-Scale Hidden Sector and Energy Transport in Fireball Models of Gamma-Ray Bursts Weak-Scale Hidden Sector and Energy Transport in Fireball Models of Gamma-Ray Bursts

1999-03-17

arxiv.org/abs/astro-ph/9903262v2

Phys.Rev.D64:043003,2001

Astronomy and Astrophysics

Astrophysics

4 pp, 1 ps fig, text revised and improved

Scientific paper

10.1103/PhysRevD.64.043003

The annihilation of pairs of very weakly interacting particles in the neibourghood of gamma-ray sources is introduced here as a plausible mechanism to overcome the baryon load problem. This way we can explain how these very high energy gamma-ray bursts can be powered at the onset of very energetic events like supernovae (collapsars) explosions or coalescences of binary neutron stars. 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. These particles would be produced either during the implosion of the red supergiant star core or at the aftermath of a neutron star binary merger. The whole energetics and timescales of the relativistic blast wave, the fireball, are reproduced.

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