Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2000-08-11
Physics
Nuclear Physics
Nuclear Theory
9 Pages, Latex, 3 figures, to be published in the Proceeding of the 18th Indonesian National Physics Symposium
Scientific paper
An effective Lagrangian model in a coupled channels framework is applied to extract nucleon resonance parameters. In the K-matrix approximation, we simultaneously analyze all the available data for the transitions from pi N to five possible meson-baryon final states, pi N, pipi N, eta N, K Lambda, and KSigma, in the energy range from pi N threshold up to W = 2 GeV. In this work, we focus our efforts on the K Sigma channel. In particular, we include a set of Delta resonances around 1900 MeV: the S31(1900), P31(1910), and P33(1920) states. In most cases the parameters of nucleon resonances determined by the fits are consistent with the commonly accepted values in the literature. We find that in the low-energy region, the S11(1650), P11(1710), and P13(1720) states are important for the p(pi-,K0)Sigma0 and p(pi-,K+)Sigma- processes while the P33(1600) and D33(1700) states are significant for the pure I=3/2 reaction p(pi+,K+)Sigma+. In the high energy region, we find a D13 state at 1945 MeV which is important for the p(pi-,K0)Sigma0 reaction while the Delta resonances around 1900 MeV show up significantly in the p(pi-,K+)Sigma- and p(pi+,K+)Sigma+ processes.
Bennhold Cornelius
Haberzettl Helmut
Mart T.
Mosel Ulrich
Penner Gregor
No associations
LandOfFree
Nucleon Resonances in Meson Nucleon Scattering with Strangeness Production does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nucleon Resonances in Meson Nucleon Scattering with Strangeness Production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nucleon Resonances in Meson Nucleon Scattering with Strangeness Production will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-724116