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Few-Body Systems

, 60:17 | Cite as

Effective Degrees of Freedom in Baryon and Meson Spectroscopy

  • J. FerrettiEmail author
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  1. NSTAR 2017

Abstract

We discuss some of the most relevant non-standard quark configurations in hadron spectroscopy, which are alternative to the qqq and \(q \bar{q}\) 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.

Notes

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Authors and Affiliations

  1. 1.Center for Theoretical Physics, Sloane Physics LaboratoryYale UniversityNew HavenUSA

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