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ID: 544223.0, MPI für Physik / MPI für Physik
Bursts from the very early universe
Authors:
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Physics Letters B
Journal Abbrev.:Phys.Lett.B
Issue / Number:639
Start Page:14
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Bursts of weakly interacting particles such as neutrinos or even more weakly interacting particles such as wimps and gravitons from the very early universe would offer a much deeper look back time'' to early epochs than is possible with photons. We consider some of the issues related to the existence of such bursts and their detectability. Characterizing the burst rate by a probability $\cal P$ per Hubble four-volume we find, for events in the radiation-dominated era, that the natural unit of description is the present intensity of the CMB times $\cal P$. The existence of such bursts would make the observation of phenomena associated with very early times in cosmology at least conceptually possible. One might even hope to probe the transplanckian epoch if complexes more weakly interacting than the graviton can exist. Other conceivable applications include the potential detectability of the formation of "pocket" universes'' in a multiverse.
Classification / Thesaurus:Astroparticle Physics
Comment of the Author/Creator:eight pages, no figures, typo in metadata corrected
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:
Identifiers:
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