A Simple Model of Pentaquarks

Abstract

We describe pentaquarks as baryo-charmonia with a color octet $c\bar{c}$ core bonded to a color octet three-quark system. Fermi statistics of the light quark cloud allows to describe two pentaquark triplets: a lower one, well supported by experiment, and a higher one with strangeness. For the time being, the lowest line of the strange triplet has been experimentally identified in a $3\sigma$ peak. Data also suggest (at least) two different production mechanisms for pentaquarks. We show how this can be described in the proposed scheme.

14 pages, 2 figures

References in corpus (4)

• Multiquark Resonances
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Spectrum of the molecular pentaquarks
• The Pentaquark Spectrum from Fermi Statistics

Cited by in corpus (1)

• Unravelling Pentaquarks with Born--Oppenheimer effective theory