A STUDY OF THE πN SCATTERING DATA WITH JP = 3/2- AND A PROOF OF THE EXISTENCE OF THE N(1700)

A STUDY OF THE πN SCATTERING DATA WITH JP = 3/2- AND A PROOF OF THE EXISTENCE OF THE N(1700)

Using an interaction extracted from the local hidden gauge Lagrangians and the coupled channels ρN (s-wave), πN (d-wave), πΔ (s-wave) and πΔ (d-wave), we look in the region of $\sqrt{s} = 1400-1850 \ {\rm MeV}$ and we find two resonances dynamically generated which are naturally associated to the N*...

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Veröffentlicht in:International journal of modern physics. Conference series 2014, Vol.26
Hauptverfasser: GARZON, E. J., XIE, JUJUN, OSET, E.
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container_title International journal of modern physics. Conference series
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creator GARZON, E. J.
XIE, JUJUN
OSET, E.
description Using an interaction extracted from the local hidden gauge Lagrangians and the coupled channels ρN (s-wave), πN (d-wave), πΔ (s-wave) and πΔ (d-wave), we look in the region of $\sqrt{s} = 1400-1850 \ {\rm MeV}$ and we find two resonances dynamically generated which are naturally associated to the N*(1520)(3/2-) and N*(1700)(3/2-). The N*(1700)(3/2-) appears neatly as a pole in the complex plane. The free parameters of the theory are chosen to fit the πN (d-wave) data. The unitary coupled channel approach followed here, in connection with the experimental data, leads automatically to a pole in the 1700 MeV region and makes this second 3/2- resonance unavoidable.
doi_str_mv 10.1142/S2010194514600611
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title A STUDY OF THE πN SCATTERING DATA WITH JP = 3/2- AND A PROOF OF THE EXISTENCE OF THE N(1700)
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