DPG Phi
Verhandlungen
Verhandlungen
DPG

Heidelberg 2015 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

SYEP: Symposium Efimov Physics

SYEP 2: Symposium Efimov Physics II

SYEP 2.6: Vortrag

Montag, 23. März 2015, 16:15–16:30, C/gHS

Zb-B scattering in pionless effective field theory — •Erik Wilbring1, Hans-Werner Hammer2, and Ulf-G. Meißner1,31Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany — 2Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany — 3Institut für Kernphysik (IKP-3), Institute for Advanced Simulation (IAS-4) and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany

The two charged exotic mesons Zb(10610) and Zb(10650) found by the Belle collaboration are interpreted as hadronic molecules made of two loosely-bound B-mesons. Motivated by their relatively small binding energies, we analyze their scattering off a third B-meson using a non-relativistic effective field theory without pions. In analogy to the deuteron considered as a NN bound state and the triton as the first Efimov trimer in the NNN system, we search for possible bound states of three B-mesons which originate from the Efimov effect. In addition we determine the scattering length and phase shift of different elastic ZbB-meson scattering processes by numerically solving the corresponding (coupled) integral equations.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2015 > Heidelberg