PT Journal
AU Richard, JM
   Valcarce, A
   Vijande, J
TI Few-body quark dynamics for doubly heavy baryons and tetraquarks
SO Physical Review C
JI Phys. Rev. C
PY 2018
BP 035211
EP 10pp
VL 97
IS 3
DI 10.1103/PhysRevC.97.035211
LA English
AB We discuss the adequate treatment of the three- and four-body dynamics for the quark model picture of double-charm baryons and tetraquarks. We stress that the variational and Born-Oppenheimer approximations give energies very close to the exact ones, while the diquark approximation might be somewhat misleading. The Hall-Post inequalities also provide very useful lower bounds that exclude the possibility of stable tetraquarks for some mass ratios and some color wave functions.
ER