Nucleus from String Theory
High Energy Physics - Theory
2011-09-08 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
In generic holographic QCD, we find that baryons are bound to form a nucleus, and that its radius obeys the empirically-known mass number (A) dependence r A^{1/3} for large A. Our result is robust, since we use only a generic property of D-brane actions in string theory. We also show that nucleons are bound completely in a finite volume. Furthermore, employing a concrete holographic model (derived by Hashimoto, Iizuka, and Yi, describing a multi-baryon system in the Sakai-Sugimoto model), the nuclear radius is evaluated as O(1) x A^{1/3} [fm], which is consistent with experiments.
Keywords
Cite
@article{arxiv.1103.5688,
title = {Nucleus from String Theory},
author = {Koji Hashimoto and Takeshi Morita},
journal= {arXiv preprint arXiv:1103.5688},
year = {2011}
}
Comments
4 pages; Ver.2: terminology on nuclear density saturation modified, a reference added