Speaker
Ms
Antje Peters
(Goethe-Universität Frankfurt am Main)
Description
We study $\bar{b} \bar{b} u d$ and $\bar{b} b u \bar{d}$ four-quark systems using lattice QCD. The heavy b quarks are treated either in the static approximation or by using NRQCD. Both for $\bar{b} \bar{b} u d$ (quantum numbers $I(J^P) = 0(1^+)$) and for $\bar{b} b u \bar{d}$ (quantum numbers of $Z_b$, $I(J^P) = 1(1^+)$) our results indicate the existence of a four-quark bound state, i.e. a tetraquark.
Primary authors
Ms
Antje Peters
(Goethe-Universität Frankfurt am Main)
Dr
Krzysztof Cichy
(Goethe-University Frankfurt am Main)
Dr
Luka Leskovec
(University of Arizona)
Prof.
Marc Wagner
(Goethe University Frankfurt)
Prof.
Pedro Bicudo
(Universidade de Lisboa)
Prof.
Stefan Meinel
(University of Arizona)
