Dark Dimension With (Little) Strings Attached
Year: 2024
Type: article
Abstract: A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron size with the standard model localized on D‐branes. Our explicit top‐down worldsheet derivation establishes it on a more solid grounding. Allowing some fine‐tuning, such that the vacuum energy only arise at higher orders in string perturbation theory, the “little string theory” scenario with a very weakly coupled string is an alternative possibility. In this case, the string scale lies at the edge of detectability of particle accelerators.
Source: Fortschritte der Physik
Authors: Ivano Basile, Dieter Lüst
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,300
OpenAlex ID: W4405874767