English

Do alien particles exist, and can they be detected?

General Physics 2016-11-15 v1 High Energy Physics - Theory

Abstract

We may call "alien particles" those particles belonging to the matter/field content of a dd-dimensional brane other than the 33-brane (or stack of branes) sweeping the space-time in which we live. They can appear in our space-time at the regions of intersection between our and their brane. They can be identified (or not) as alien matter depending on their properties, on the physical laws governing their evolution in the "homeland" brane, and on the details of our detection techniques.

Cite

@article{arxiv.1606.07403,
  title  = {Do alien particles exist, and can they be detected?},
  author = {M. Gasperini},
  journal= {arXiv preprint arXiv:1606.07403},
  year   = {2016}
}

Comments

5 pages, 1 figure. Essay written for the Gravity Research Foundation, 2016 Awards for Essays on Gravitation. To appear in the October 2016 Special Issue of International Journal of Modern Physics D

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