Can low-lying Roper states be explained as antidecuplet members?

Abstract

It is shown that the anomalously low-lying Roper states cannot be assigned as pentaquarks with the scalar diquark - scalar diquark - antiquark structure as suggested by Jaffe and Wilczek.

Will appear in Phys. Rev. Lett. as a comment on the paper by R. Jaffe and F. Wilczek, Phys. Rev. Lett., 91, 232003 (2003)

References in corpus (2)

• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Diquarks and Exotic Spectroscopy

Cited by in corpus (6)

• Spatially improved operators for excited hadrons on the lattice
• Width of the J^P=1/2^+ pentaquark in the quark-diquark model
• Investigating the parity of the exotic Theta^+ baryon from the kaon photoproduction
• Phenomenological constraints on the Jaffe-Wilczek model of pentaquarks
• The mass structure of SU(3) baryon antidecuplet and pion muon mass difference
• Notes on exotic anti-decuplet of baryons