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Conference Papers Year : 2000

Scalar meson exchange and the spectrum of baryons

P. Stassart
  • Function : Author
F. Stancu
  • Function : Author

Abstract

We explore the role of a scalar meson exchange interaction between quarks in a semirelativistic constituent quark model where the quarks are subject to a linear confinement. We search for a variational solution and show that the gap between the N=1 band and the ground state N=0 band increases with the strength of the scalar meson exchange interaction potential. This result has good implications on the description of the low-lying baryon resonances, especially on the Roper vs. negative parity resonances ordering.

Dates and versions

in2p3-00003869 , version 1 (19-01-2000)

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P. Stassart, F. Stancu, J.-M. Richard. Scalar meson exchange and the spectrum of baryons. International Conference on Quark Confinement and the Hadron Spectrum 3, Jun 1998, Newport News, United States. ⟨in2p3-00003869⟩
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