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- Title
THE PION-NUCLEON SIGMA TERM FROM UPDATED T-CHANNEL INPUT.
- Authors
Hadzimehmedovic, M.; Osmanovic, H.; Stahov, J.
- Abstract
Dispersion relations along interior hyperbolas and a. set of hyperbolas passing through the Cheng-Dashen point are used to calculate the pion-nucleon sigma term. The t-channel input is updated using the recent GWU partial wave solution and n phase shifts from calculations based on Roy equations. Obtained values for the sigma term are still within the error bars of the previous Karlsruhe result.
- Subjects
PIONS; PARTICLES (Nuclear physics); NUCLEAR physics; HYPERBOLA; DISPERSION relations; CAUSALITY (Physics)
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2005, Vol 20, Issue 8/9, p1876
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X05023530