• Chiral soliton model vs. pentaquark structure for Θ(1540)

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      https://www.ias.ac.in/article/fulltext/pram/065/03/0381-0391

    • Keywords

       

      Chiral soliton model; pentaquarks; QCD; largeN.

    • Abstract

       

      The exotic baryon Θ+(1540 MeV) is visualized as an expected (iso) rotational excitation in the chiral soliton model. It is also argued as a pentaquark baryon state in a constituent quark model with strong diquark correlations. I contrast these two points of view; observe the similarities and differences between the two pictures. Collective excitation, the characteristic of chiral soliton model, points toward small mixing of representations in the wake ofSU (3) breaking. In contrast, constituent quark models prefer near ‘ideal’ mixing, similar to ω-φ mixing.

    • Author Affiliations

       

      R Ramachandran1 2

      1. The Inter-University Centre for Astronomy and Astrophysics, University of Pune Campus, Pune - 411 007, India
      2. Department of Physics, University of Pune Campus, Pune - 411 007, India
    • Dates

       
  • Pramana – Journal of Physics | News

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