Sensitivity of tensor analyzing power in the process [Formula Presented] to the longitudinal isoscalar form factor of the Roper resonance electroexcitation

E. Tomasi-Gustafsson*, M. P. Rekalo, R. Bijker, A. Leviatan, F. Iachello

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

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 languageAmerican English
Pages (from-to)1526-1533
Number of pages8
JournalPhysical Review C - Nuclear Physics
Volume59
Issue number3
DOIs
StatePublished - 1999

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