TY - JOUR
T1 - Sensitivity of tensor analyzing power in the process [Formula Presented] to the longitudinal isoscalar form factor of the Roper resonance electroexcitation
AU - Tomasi-Gustafsson, E.
AU - Rekalo, M. P.
AU - Bijker, R.
AU - Leviatan, A.
AU - Iachello, F.
PY - 1999
Y1 - 1999
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0033244047&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.59.1526
DO - 10.1103/PhysRevC.59.1526
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AN - SCOPUS:0033244047
SN - 0556-2813
VL - 59
SP - 1526
EP - 1533
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 3
ER -