## Abstract

The tensor analyzing power of the process [Formula Presented] for forward deuteron scattering in the momentum interval 3.7 to [Formula Presented] is studied in the framework of [Formula Presented] exchange in an algebraic collective model for the electroexcitation of nucleon resonances. We point out a special sensitivity of the tensor analyzing power to the isoscalar longitudinal form factor of the Roper resonance excitation. The main argument is that the [Formula Presented] and [Formula Presented] resonances have only isovector longitudinal form factors. It is the longitudinal form factor of the Roper excitation, which plays an important role in the t dependence of the tensor analyzing power. We discuss possible evidence of swelling of hadrons with increasing excitation energy.

Original language | American English |
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Pages (from-to) | 1526-1533 |

Number of pages | 8 |

Journal | Physical Review C - Nuclear Physics |

Volume | 59 |

Issue number | 3 |

DOIs | |

State | Published - 1999 |