Hadronic properties of the S11(1535) studied by electroproduction off the deuteron
Leonid Frankfurt, Mikkel Johnson, Misak Sargsian, Mark Strikman, Wolfram Weise
Abstract
Properties of excited baryonic states are investigated in the context of electroproduction of baryon resonances off the deuteron. In particular, the hadronic radii and the compositeness of baryon resonances are studied for kinematic situations in which their hadronic reinteraction is the dominant contribution. Specifically, we study the reaction d(e,e'S11)N at Q2 1 GeV2 for kinematics in which the produced hadronic state reinteracts predominantly with the spectator nucleon. A comparison of constituent quark model and effective chiral Lagrangian calculations of the S11 shows substantial sensitivity to the structure of the produced resonance.
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