Transient Pulses from Exploding Primordial Black Holes as a Signature of an Extra Dimension

Details Transient Pulses from Exploding Primordial Black Holes as a Signature of an Extra Dimension Transient Pulses from Exploding Primordial Black Holes as a Signature of an Extra Dimension

2008-01-25

arxiv.org/abs/0801.4023v4

JCAP0811:017,2008

Astronomy and Astrophysics

Astrophysics

11 pages, 1 figure; references added; typos corrected; clarifying remarks added near the end of section 1

Scientific paper

10.1088/1475-7516/2008/11/017

An evaporating black hole in the presence of an extra spatial dimension would undergo an explosive phase of evaporation. We show that such an event, involving a primordial black hole, can produce a detectable, distinguishable electromagnetic pulse, signaling the existence of an extra dimension of size $L\sim10^{-18}-10^{-20}$ m. We derive a generic relationship between the Lorentz factor of a pulse-producing "fireball" and the TeV energy scale. For an ordinary toroidally compactified extra dimension, transient radio-pulse searches probe the electroweak energy scale ($\sim$0.1 TeV), enabling comparison with the Large Hadron Collider.

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