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The European Physical Journal A

, Volume 35, Issue 3, pp 321–324 | Cite as

Chiral constituent quark model study of the process γp → ηp

  • J. He
  • B. Saghai
  • Z. Li
  • Q. Zhao
  • J. Durand
Regular Article - Theoretical Physics

Abstract.

A constituent quark model is developed for the reaction γp → ηp , allowing us to investigate all available data for differential cross-sections as well as single polarization asymmetries (beam and target) by including all of the PDG, one to four star, nucleon resonances (S11, P11, P13, D13, D15, F15, F17, G17, G19, H19, I1,11, and K1,13). Issues related to the missing resonances are also briefly discussed by examining possible contributions from several new resonances (S11, P11, P13, D13, D15, and H1,11).

PACS.

13.60.Le Meson production 14.20.Gk Baryon resonances with S = 0  

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2008

Authors and Affiliations

  • J. He
    • 1
  • B. Saghai
    • 1
  • Z. Li
    • 2
  • Q. Zhao
    • 3
  • J. Durand
    • 1
  1. 1.DAPNIA/SPhNDSM, CEA/SaclayGif-sur-YvetteFrance
  2. 2.Department of Computer and Information ScienceUniversity of MarylandUSA
  3. 3.Institute of High Energy PhysicsChinese Academy of SciencesBeijingPRC

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