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Evidence for the fourth P11 resonance predicted by the constituent quark model

Phys. Rev. C 59, R3002(R) – Published 1 June 1999
Simon Capstick, T.-S. H. Lee, W. Roberts, and A. Švarc


It is pointed out that the third of five low-lying P11 states predicted by a constituent quark model can be identified with the third of four states in a solution from a three-channel analysis by the Zagreb group. This is one of the so-called “missing” resonances, predicted at 1880 MeV. The fit of the Zagreb group to the πNηN data is the crucial element in finding this fourth resonance in the P11 partial wave.

DOI: http://dx.doi.org/10.1103/PhysRevC.59.R3002

  • Received 1 April 1999
  • Published in the issue dated June 1999

© 1999 The American Physical Society

Authors & Affiliations

Simon Capstick*

  • Department of Physics and Supercomputer Computations Research Institute, Florida State University, Tallahassee, Florida 32306

T.-S. H. Lee

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

W. Roberts

  • National Science Foundation, 4201 Wilson Boulevard, Arlington, Virginia 22230

A. Švarc§

  • Rudjer Bošković Institute, Zagreb, Croatia

  • *Electronic address: capstick@scri.fsu.edu
  • Electronic address: lee@anlphy.phy.anl.gov
  • On leave from Department of Physics, Old Dominion University, Norfolk, VA 23529. Electronic address: wroberts@nsf.gov
  • §Electronic address: svarc@rudjer.irb.hr

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