Resonance properties from a coupled channel meson exchange model

  • In this talk, I present the results on the pole structure of pion-nucleon scattering in an analytic model based on meson exchange. The analytic properties of scattering amplitudes provide important information. Besides the cuts, the poles and zeros on the different Riemann sheets determine the global behavior of the amplitude on the physical axis. Pole positions and residues allow for a parameterization of resonances in a well-defined way, free of assumptions for the background and energy dependence of the resonance part. This is a necessary condition to relate resonance contributions in different reactions.

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  • [1] . Anisovich A V et al. Eur. Phys. J. A, 2005, 25: 4272. Manley D M et al. Phys. Rev. D, 1992, 45: 40023. Penner G et al. Phys. Rev. C, 2002, 66: 0552114. Shklyar V et al. Phys. Rev. C, 2005, 71: 055206, [Erratumibid.C, 2005, 72, 019903]5. Sato T et al. Phys. Rev. C, 1996, 54: 26606. Julia-Diaz B et al. Phys. Rev. C, 2007, 76: 0652017. Schutz C et al. Phys. Rev. C, 1998, 57: 14648. Krehl O et al. Phys. Rev. C, 2000, 62: 0252079. Gasparyan et al. Phys. Rev. C, 2003, 68: 04520710. Doring M at al. arXiv: 0903.1781 [nucl-th]11. Doring M at al. arXiv: 0903.4337 [nucl-th]12. Kaiser N et al. Phys. Lett. B, 1995, 362: 2313. Oller J A et al. Nucl. Phys. A, 1997, 620: 438, [Erratumibid.A 652 (1999) 407]14. Jido D et al. Nucl. Phys. A, 2003, 725: 18115. Kolomeitsev E E at al. Phys. Lett. B, 2004, 585: 24316. Doring M et al. Phys. Rev. C, 2006, 73: 04520917. Wess J et al. Phys. Rev., 1967, 163: 172718. Meiner U G. Phys. Rept., 1988, 161: 21319. Frazier W R et al. Phys. Rev., 1964, 134: B130720. Arndt R A et al. Phys. Rev. C, 2006, 74: 04520521. Hohler G. N Newsletter, 1993, 9: 122. Cutkowsky R E et al. Phys. Rev. D, 1979, 20: 283923. Amsler C et al (Particle Data Group). Phys. Lett. B, 2008,667: 124. Krewald S. Talk at the Workshop on the Physics of Excited Nucleon|NSTAR2009, Beijing April 19|22, 2009.25. Arndt R A et al. Phys. Rev. C, 2004, 69: 03521326. Arndt R A et al. Eur. Phys. J. A, 2008, 35, 31127. Oset E et al. arXiv: 0905.0973 [hep-ph]
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HUANG Fei. Resonance properties from a coupled channel meson exchange model[J]. Chinese Physics C, 2009, 33(12): 1273-1278. doi: 10.1088/1674-1137/33/12/037
HUANG Fei. Resonance properties from a coupled channel meson exchange model[J]. Chinese Physics C, 2009, 33(12): 1273-1278.  doi: 10.1088/1674-1137/33/12/037 shu
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Received: 2009-08-07
Revised: 1900-01-01
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Resonance properties from a coupled channel meson exchange model

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In this talk, I present the results on the pole structure of pion-nucleon scattering in an analytic model based on meson exchange. The analytic properties of scattering amplitudes provide important information. Besides the cuts, the poles and zeros on the different Riemann sheets determine the global behavior of the amplitude on the physical axis. Pole positions and residues allow for a parameterization of resonances in a well-defined way, free of assumptions for the background and energy dependence of the resonance part. This is a necessary condition to relate resonance contributions in different reactions.

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