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- Title
String (Gravi)photons, "Dark Brane Photons", Holography and the Hypercharge Portal.
- Authors
Anastasopoulos, P.; Bianchi, M.; Consoli, D.; Kiritsis, E.
- Abstract
The mixing of graviphotons and dark brane photons to the Standard Model hypercharge is analyzed in full generality, in weakly‐coupled string theory. Both the direct mixing as well as effective terms that provide mixing after inclusion of SM corrections are estimated to lowest order. The results are compared with Effective Field Theory (EFT) couplings, originating in a hidden large‐N theory coupled to the SM where the dark photons are composite. The string theory mixing terms are typically subleading compared with the generic EFT couplings. The case where the hidden theory is a holographic theory is also analyzed, providing also suppressed mixing terms to the SM hypercharge.
- Subjects
PHOTONS; STANDARD model (Nuclear physics); STRING theory; HOLOGRAPHY
- Publication
Fortschritte der Physik / Progress of Physics, 2021, Vol 69, Issue 6, p1
- ISSN
0015-8208
- Publication type
Article
- DOI
10.1002/prop.202100034