6533b82efe1ef96bd129345f
RESEARCH PRODUCT
Multi-hadron spectroscopy in a large physical volume
John BulavaColin MorningstarBen Hörzsubject
PhysicsQuarkParticle physicsIsovector010308 nuclear & particles physicsPhysicsQC1-999High Energy Physics::LatticeComputer Science::Information RetrievalHigh Energy Physics - Lattice (hep-lat)Nuclear TheoryFOS: Physical sciencesGauge (firearms)01 natural sciencesExponential functionScattering amplitudeHigh Energy Physics - LatticePionHadron spectroscopy0103 physical sciencesHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsSpectroscopydescription
We demonstrate the efficacy of the stochastic LapH method to treat all-to-all quark propagation on a $N_f = 2+1$ CLS ensemble with large linear spatial extent $L = 5.5$ fm, allowing us to obtain the benchmark elastic isovector p-wave pion-pion scattering amplitude to good precision already on a relatively small number of gauge configurations. These results hold promise for multi-hadron spectroscopy at close-to-physical pion mass with exponential finite-volume effects under control.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-10-12 | EPJ Web of Conferences |