TY  - CONF
A1  - Pflaumer, Martin
A1  - Bicudo, Pedro
A1  - Cardoso, Marco
A1  - Peters, Antje Katharine
A1  - Wagner, Marc
T1  - b̄b̄ud tetraquark resonances in the Born-Oppenheimer approximation using lattice QCD potentials
T2  - Proceedings of Science
N2  - We study tetraquark resonances for a pair of static antiquarks b¯b¯ in presence of two light quarks ud based on lattice QCD potentials. The system is treated in the Born-Oppenheimer approximation and we use the emergent wave method. We focus on the isospin I = 0 channel but take different angular momenta l of the heavy antiquarks b¯b¯ into account. Further calculations have already predicted a bound state for the l = 0 case with quantum numbers I(JP) = 0(1+). Performing computations for several angular momenta, we extract the phase shifts and search for T and S matrix poles in the second Riemann sheet. For angular momentum l = 1, we predict a tetraquark resonance with quantum numbers I(JP) = 0(1−), resonance mass m = 10576+4−4 MeV and decay width Γ = 112+90−103 MeV, which decays into two B mesons.
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/84613
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-846136
SN  - 1824-8039
VL  - 336
IS  - 123
PB  - SISSA
CY  - Trieste
ER  -