2016/07/31 by C. B. Lang, Daniel Mohler, D. Mohler +2 · 1 citation
Chemistry · Physics and Astronomy · #Chemistry #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevd.94.074509
published as Phys. Rev. D 94, 074509 (2016) · 8 pages, 4 figures, version to appear in Phys. Rev. D, new Section III added which provides details of the calculation, results and conclusions unchanged
openalex created_date 2016/09/16 · arxiv created 2016/10/11 · openalex publication_date 2016/10/28 · arxiv updated 2016/11/02 · openalex updated_date 2026/08/05
We investigate Bs\ensuremathπ+ scattering in s-wave using lattice QCD in order to search for an exotic resonance X(5568) with flavor bsdu; such a state was recently reported by D0 but was not seen by LHCb. If X(5568) with JP=0+ exists, it can strongly decay only to Bs\ensuremathπ+ and lies significantly below all other thresholds, which makes a lattice search for X(5568) cleaner and simpler than for other exotic candidates. Both an elastic resonance in Bs\ensuremathπ+ as well as a deeply bound B+K0 would lead to distinct signatures in the energies of lattice eigenstates, which are not seen in our simulation. We therefore do not find a candidate for X(5568) with JP=0+ in agreement with the recent LHCb result. The extracted Bs\ensuremathπ+ scattering length is compatible with zero within the error.