English

Does nuclear matter bind at large $N_c$?

High Energy Physics - Phenomenology 2011-09-07 v2 High Energy Physics - Theory Nuclear Theory

Abstract

The existence of nuclear matter at large NcN_{c} is investigated in the framework of effective hadronic models of the Walecka type. This issue is strongly related to the nucleon-nucleon attraction in the scalar channel, and thus to the nature of the light scalar mesons. Different scenarios for the light scalar sector correspond to different large NcN_{c} scaling properties of the parameters of the hadronic models. In all realistic phenomenological scenarios for the light scalar field(s) responsible for the attraction in the scalar channel it is found that nuclear matter does not bind in the large NcN_{c} world. We thus conclude that Nc=3N_{c}=3 is in this respect special: 3 is fortunately not large at all and allows for nuclear matter, while large NcN_{c} would not.

Cite

@article{arxiv.1102.3367,
  title  = {Does nuclear matter bind at large $N_c$?},
  author = {Luca Bonanno and Francesco Giacosa},
  journal= {arXiv preprint arXiv:1102.3367},
  year   = {2011}
}

Comments

18 pages, 5 figures

R2 v1 2026-06-21T17:27:23.697Z