Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2011-10-03
Physics
Nuclear Physics
Nuclear Experiment
Proceedings for The 8th International Workshop on the Physics of Excited Nucleons (NSTAR11), May 17-20, 2011 held at Thomas Je
Scientific paper
The nature of the Lambda(1405), and its place in the baryon spectrum has remained uncertain for decades. Theoretical studies have shown that it may possess strong dynamical components which are not seen in other well-known baryons. Using the CLAS detector system in Hall B at Jefferson Lab, we have measured the photoproduction reaction gamma+p->K+ Lambda(1405) with high statistics and over different Sigma pi decay channels. The reconstructed invariant mass distribution (lineshape) has been measured, as well as the differential cross sections for the Lambda(1405), Sigma(1385), and Lambda(1520). Our analysis method is discussed and our near-final results for the Lambda(1405) lineshape and differential cross section are presented.
for the CLAS Collaboration
Moriya Kei
Schumacher Reinhard
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