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    Ultra-high-energy collisions of particles in the field of near-extreme Kehagias-Sfetsos naked singularities and their appearance to distant observers

    Zdeněk Stuchlík · Květen 01, 2014 · Fyzika · 0 comments
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    Publication date: May 2014

    Abstract:
    We demonstrate that ultra-high-energy collisions of particles falling
    freely from rest at infinity can occur in the field of near-extreme
    Kehagias-Sfetsos naked singularities related to the Hořava gravity.
    However, the efficiency of escaping of created ultrarelativistic
    particles and the energy efficiency of the collisional process relative
    to distant observers are significantly lowered due to large
    gravitational redshift, which is substantially lower in comparison to
    those related to the collisions occurring close to the equatorial plane
    of near-extreme Kerr naked-singularity spacetimes. In the Kehagias-
    Sfetsos naked-singularity spacetimes, the energy efficiency relative to
    distant observers corresponds to the covariant energy of the colliding
    particles only. Finally, we demonstrate how the ultra-high-energy
    collisions are modified for charged particles if the Kehagias-Sfetsos
    naked singularities are immersed in a uniform magnetic field.

    Authors:
    Stuchlík, Zdeněk; Schee, Jan; Abdujabbarov, Ahmadjon;

    https://ui.adsabs.harvard.edu/abs/2014PhRvD..89j4048S

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