Yanhe Jin

Longitudinal response functions for 40Ca from quasi-elastic electron scattering

Abstract Longitudinal response functions were extracted from quasi-elastic electron scattering data on 40 Ca at angles of 45.5°, 90°, and 140° with bombarding energies ranging from 130 to 840 MeV and for constant three-momentum transfers of 300, 330, 370, 410 and 450 MeV/ c . Contrary to previously reported results, the present longitudinal response functions show no more than 20% missing strength when compared to the relativistic Fermi gas model. Calculations employing wavefunctions generated from a relativistic Hartree potential and using an effective momentum approximation yield results that are in much closer agreement with the experimental data and indicate essentially no longitudinal suppression.

Quasielastic electron scattering from {sup 40}Ca

Differential cross sections for quasielastic electron scattering on {sup 40}Ca have been measured at laboratory scattering angles of 45.5{degree}, 90{degree}, and 140{degree} with bombarding energies ranging from 130 to 840 MeV. Transverse and longitudinal response functions have been extracted for momentum transfers from 300 to 500 MeV/c. Contrary to some previously reported results, the total observed longitudinal strength agrees with the relativistic Fermi gas prediction to within {plus_minus}18{percent}. {copyright} {ital 1997} {ital The American Physical Society}

Quasielastic electron scattering from40Ca

Differential cross sections for quasielastic electron scattering on {sup 40}Ca have been measured at laboratory scattering angles of 45.5{degree}, 90{degree}, and 140{degree} with bombarding energies ranging from 130 to 840 MeV. Transverse and longitudinal response functions have been extracted for momentum transfers from 300 to 500 MeV/c. Contrary to some previously reported results, the total observed longitudinal strength agrees with the relativistic Fermi gas prediction to within {plus_minus}18{percent}. {copyright} {ital 1997} {ital The American Physical Society}

Quasielastic electron scattering from [Formula Presented]Ca

Differential cross sections for quasielastic electron scattering on {sup 40}Ca have been measured at laboratory scattering angles of 45.5{degree}, 90{degree}, and 140{degree} with bombarding energies ranging from 130 to 840 MeV. Transverse and longitudinal response functions have been extracted for momentum transfers from 300 to 500 MeV/c. Contrary to some previously reported results, the total observed longitudinal strength agrees with the relativistic Fermi gas prediction to within {plus_minus}18{percent}. {copyright} {ital 1997} {ital The American Physical Society}