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Effective theory for dark matter and a new force in the dark matter sector

journal contribution
posted on 2023-06-07, 23:19 authored by Xavier CalmetXavier Calmet, Swarup Kumar Majee
An effective theory for dark matter has recently been proposed. The key assumption is that the dark matter particle which is a Dirac fermion is protected from decaying by a global U(1) symmetry. We point out that quantum gravity effects will violate this symmetry and that the dark matter candidate thus decays very fast. In order to solve that problem, we propose to consider a local gauge symmetry which implies a new force in the dark matter sector. It is likely that this new local U(1) symmetry will need to be spontaneously broken leading for a range of the parameters of the model to a Sommerfeld enhancement of the annihilation cross sections which is useful to explain the Pamela and ATIC results using a weakly interacting massive particle with a mass in the TeV range.

History

Publication status

  • Published

Journal

Physics Letters B

ISSN

0370-2693

Issue

3

Volume

679

Page range

267-269

Pages

3.0

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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