Charmed bottom baryon spectroscopy
Author(s)Brown, Zachary S.; Detmold, William; Meinel, Stefan; Orginos, Kostas
MetadataShow full item record
The arena of doubly and triply heavy baryons remains experimentally unexplored to a large extent. This has led to a great deal of theoretical effort being put forth in the calculation of mass spectra in this sector. Although the detection of such heavy particle states may lie beyond the reach of experiments for some time, it is interesting to compare results between lattice QCD computations and continuum theoretical models. Several recent lattice QCD calculations exist for both doubly and triply charmed as well as doubly and triply bottom baryons. In this work we present preliminary results from the first lattice calculation of the mass spectrum of doubly and triply heavy baryons including both charm and bottom quarks. The wide range of quark masses in these systems require that the various flavors of quarks be treated with different lattice actions.We use domain wall fermions for 2+1 flavors (up down and strange) of sea and valence quarks, a relativistic heavy quark action for the charm quarks, and non-relativistic QCD for the heavier bottom quarks. The calculation of the ground state spectrum is presented and compared to recent models.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
31st International Symposium on Lattice Field Theory - LATTICE 2013
Brown, Zachary S., William Detmold, Stefan Meinel and Kostas Orginos. "Charmed Bottom Baryon Spectroscopy." Article presented at the 31st International Symposium on Lattice Field Theory - LATTICE 2013 (July 29 - August 3, 2013, Mainz, Germany)
Final published version