English

$Z_c(3900)$ as a Four-Quark State

High Energy Physics - Phenomenology 2015-09-16 v3

Abstract

Using the method of QCD Sum Rules, we derive the correlator ΠZ\Pi^Z for a state consisting of two charm quarks and two light quarks, ccˉudˉc\bar{c}u\bar{d}, and carry out a Borel transform to find ΠZ(MB)\Pi^Z(M_B). From this we find the solution that MB3.9±.2M_B\simeq 3.9 \pm .2 GeV, showing that the Zc(3900)Zc(3900) is a tetra-quark state.

Keywords

Cite

@article{arxiv.1406.6967,
  title  = {$Z_c(3900)$ as a Four-Quark State},
  author = {Leonard S. Kisslinger and Steven Casper},
  journal= {arXiv preprint arXiv:1406.6967},
  year   = {2015}
}

Comments

6 pages, 2 figures

R2 v1 2026-06-22T04:48:17.958Z