TY - JOUR
AU - Ferretti, J.
AB - We discuss some of the most relevant non-standard quark configurations in hadron spectroscopy, which are alternative to the qqq and 
$$q \bar{q}$$



q


q


¯





 description of baryons and mesons, respectively. They include the quark-diquark and four-quark (five-quark) meson-meson (meson-baryon) bound states. To this purpose, we briefly review the diquark model of baryons and tetraquark states and the hadro-quarkonium model of heavy-light tetra- and pentaquarks. Some applications of the previous models are discussed.
TI - Effective Degrees of Freedom in Baryon and Meson Spectroscopy
JF - Few-Body Systems
DO - 10.1007/s00601-019-1483-2
DA - 2019-02-01
UR - https://www.deepdyve.com/lp/springer-journals/effective-degrees-of-freedom-in-baryon-and-meson-spectroscopy-pi0VFNcrGM
SP - 1
EP - 7
VL - 60
IS - 1
DP - DeepDyve
ER -