Heavy tetraquark confining potential in Coulomb gauge QCD

Autor:	Popovici, Carina, Fischer, Christian S.
Rok vydání:	2014
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Theory
Zdroj:	Phys. Rev. D 89, 116012 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.89.116012
Popis:	We present an analytic nonperturbative solution of the Yakubovsky equation for tetraquark states in the case of equal separations and energies, and demonstrate a direct connection between the tetraquark confinement potential and the temporal gluon propagator. To this end we employ a leading-order heavy quark mass expansion of the Coulomb gauge QCD action, and use the dressed two-point functions of the Yang-Mills sector only. As a result we find a bound state energy that rises linear with distance and a string tension twice as large as in a $q\bar{q}$-system. Comment: 8 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1403.5900 Zobrazit plný text záznamu View this record from Arxiv