publication . Preprint . 2020

Energy-Momentum portal to dark matter and emergent gravity

Anastasopoulos, Pascal; Kaneta, Kunio; Mambrini, Yann; Pierre, Mathias;
Open Access English
  • Published: 04 Aug 2020
We propose a new scenario where dark matter belongs to a secluded sector coupled to the Standard Model through energy--momentum tensors. Our model is motivated by constructions where gravity {\it emerges} from a hidden sector, the graviton being identified by the kinetic term of the fields in the secluded sector. Supposing that the lighter particle of the secluded sector is the dark component of the Universe, we show that we can produce it in a sufficiently large amount despite the suppressed couplings of the theory, thanks to large temperatures of the thermal bath in the early stage of the Universe.
arXiv: High Energy Physics::Phenomenology
free text keywords: High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Theory, * Automatic Keywords *, gravitation: emergence, coupling: suppression, dark matter, energy-momentum, hidden sector, temperature, graviton, thermal, kinetic, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
Funded by
The Elusives Enterprise: Asymmetries of the Invisible Universe
  • Funder: European Commission (EC)
  • Project Code: 674896
  • Funding stream: H2020 | MSCA-ITN-ETN
FWF| String Theory meets Experiment
  • Funder: Austrian Science Fund (FWF) (FWF)
  • Project Code: P 30531
  • Funding stream: Einzelprojekte
EC| InvisiblesPlus
  • Funder: European Commission (EC)
  • Project Code: 690575
  • Funding stream: H2020 | MSCA-RISE
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9 There are two exceptions, however, couplings of the SM with the hidden sector via the Higgs mass term and via the field strength of the hypercharge. The first term is related to the hierarchy problem. The second is related to anomalies, and the relevant coupling is zero since the hypercharge is massless and anomaly free.

10 The spin- 32 superpartner of the graviton. y z x

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