Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2007-05-08
Phys.Lett.B660:167-171,2008
Physics
Nuclear Physics
Nuclear Experiment
10 pages, 4 figures, accepted for publication in Phys. Lett. B
Scientific paper
10.1016/j.physletb.2008.01.002
The pp -> p K+ Y0 reaction has been studied for hyperon masses m(Y0)<1540 MeV/c2 at COSY-Juelich by using a 3.65 GeV/c circulating proton beam incident on an internal hydrogen target. Final states comprising two protons, one positively charged kaon and one negatively charged pion have been identified with the ANKE spectrometer. Such configurations are sensitive to the production of the ground state Lambda and Sigma0 hyperons as well as the Sigma0(1385) and Lambda(1405) resonances. Applying invariant- and missing-mass techniques, the two overlapping excited states could be well separated, though with limited statistics. The shape and position of the Lambda(1405) distribution, reconstructed cleanly in the Sigma0 pion0 channel, are similar to those found from other decay modes and there is no obvious mass shift. This finding constitutes a challenging test for models that predict Lambda(1405) to be a two-state resonance.
Büscher M.
Hartmann Markus
Kacharava A.
Keshelashvili I.
Khoukaz Alfons
No associations
LandOfFree
Lineshape of the Lambda(1405) Hyperon Measured Through its Sigma0 pion0 Decay 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 Lineshape of the Lambda(1405) Hyperon Measured Through its Sigma0 pion0 Decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lineshape of the Lambda(1405) Hyperon Measured Through its Sigma0 pion0 Decay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-153384