The 39th International Symposium on Lattice Field Theory (Lattice 2022)

Antiheavy-antiheavy-light-light four-quark bound states

9 Aug 2022, 17:50

20m

CP1-HSZ/0.010 (CP1-HSZ) - HS2 (CP1-HSZ)

Oral Presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Martin Pflaumer

Description

We study four-quark systems using lattice QCD, which consist of two heavy antiquarks (either $\overline{b}\overline{b}$ or $\overline{b}\overline{c}$) and two light quarks (either $ud$ or $us$) and search for bound states in these channels. In addition to commonly used local interpolating operators we also employ scattering interpolating operators, which seem to be very important for an accurate extraction of possibly existing bound states as well as low-lying scattering states.
Moreover, we study the overlaps of trial states generated by our interpolating operators and low-lying energy eigenstates to obtain insights regarding the composition of the latter.

Presentation materials

Pflaumer_Martin_Lattice2022.pdf