Tetraquark resonances computed with static lattice QCD potentials and scattering theory

  • We study tetraquark resonances with lattice QCD potentials computed for two static quarks and two dynamical quarks, the Born-Oppenheimer approximation and the emergent wave method of scattering theory. As a proof of concept we focus on systems with isospin I = 0, but consider different relative angular momenta l of the heavy b quarks. We compute the phase shifts and search for S and T matrix poles in the second Riemann sheet. We predict a new tetraquark resonance for l = 1, decaying into two B mesons, with quantum numbers I(JP) = 0(1−), mass MeV and decay width MeV.

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Author:Pedro BicudoORCiD, Marco Cardoso, Antje Katharine PetersGND, Martin Pflaumer, Marc WagnerGND
Parent Title (English):EPJ Web of Conferences
Publisher:EDP Sciences
Place of publication:Les Ulis
Document Type:Conference Proceeding
Year of Completion:2018
Date of first Publication:2018/03/26
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:35th International Symposium on Lattice Field Theory (Lattice 2017)
Release Date:2019/04/04
Issue:Article Number 05017
Page Number:8
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0