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On the unitarity of linearized General Relativity coupled to matter

journal contribution
posted on 2023-06-07, 19:15 authored by Michael Atkins, Xavier CalmetXavier Calmet
We consider the unitarity of the S-matrix for linearized General Relativity coupled to particle physics models. Taking renormalization group effects of the Planck mass into account, we find that the scale at which unitarity is violated is strongly dependent on the particle content of the theory. We find that the requirement that the S-matrix be unitary up to the scale at which quantum gravitational effects become strong implies a bound on the particle content of the model.

History

Publication status

  • Published

Journal

Physics Letters B

ISSN

0370-2693

Publisher

Elsevier

Issue

1-4

Volume

695

Page range

298-302

Pages

5.0

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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