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General Relativity and Quantum Cosmology

arXiv:1410.4411 (gr-qc)
[Submitted on 16 Oct 2014]

Title:Consistency of matter models with asymptotically safe quantum gravity

Authors:P. Donà, Astrid Eichhorn, Roberto Percacci
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Abstract:We discuss the compatibility of quantum gravity with dynamical matter degrees of freedom. Specifically, we present bounds we obtained in [1] on the allowed number and type of matter fields within asymptotically safe quantum gravity. As a novel result, we show bounds on the allowed number of spin-3/2 (Rarita-Schwinger) fields, e.g., the gravitino. These bounds, obtained within truncated Renormalization Group flows, indicate the compatibility of asymptotic safety with the matter fields of the standard model. Further, they suggest that extensions of the matter content of the standard model are severely restricted in asymptotic safety. This means that searches for new particles at colliders could provide experimental tests for this particular approach to quantum gravity.
Comments: prepared for the proceedings of Theory Canada 9; new results on the gravitino, 8 pages, 1 figure, 1 table
Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)
Cite as: arXiv:1410.4411 [gr-qc]
  (or arXiv:1410.4411v1 [gr-qc] for this version)
  https://doi.org/10.48550/arXiv.1410.4411
Related DOI: https://doi.org/10.1139/cjp-2014-0574

Submission history

From: Astrid Eichhorn [view email]
[v1] Thu, 16 Oct 2014 13:21:14 UTC (143 KB)
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