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

T. C. Yates; C. F. Williamson; W. M. Schmitt; M. Osborn; M. Deady; Peter D. Zimmerman; C. C. Blatchley; Kamal K Seth; M. Sarmiento; B. Parker; Yanhe Jin; L. E. Wright; D. S. Onley

doi:10.1016/0370-2693(93)90971-J

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

T. C. Yates^*, C. F. Williamson, W. M. Schmitt, M. Osborn, M. Deady, Peter D. Zimmerman, C. C. Blatchley, Kamal K Seth, M. Sarmiento, B. Parker, Yanhe Jin, L. E. Wright, D. S. Onley

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

Longitudinal response functions were extracted from quasi-elastic electron scattering data on ⁴⁰Ca 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.

Original language	English (US)
Pages (from-to)	382-387
Number of pages	6
Journal	Physics Letters B
Volume	312
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(93)90971-J
State	Published - Aug 19 1993

Funding

We thank the Ohio Supercomputer Center in Columbus for making available the Cray Y-MP time to perform the relativistic Hartree shell model calcu-lattons One of us (C F W ) would hke to acknowledge many stimulating and enhghtening conversations with Dr T W Donnelly This work was supported in part by the US Department of Energy un- der Grant No FG02-87ER40370 and Contract No EY-76-C-OZ-3069, and in part by a grant from the National Science Foundation

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(93)90971-J

Cite this

@article{e3f9f894ee774a408f31b09d7186df66,

title = "Longitudinal response functions for 40Ca from quasi-elastic electron scattering",

abstract = "Longitudinal response functions were extracted from quasi-elastic electron scattering data on 40Ca 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.",

author = "Yates, {T. C.} and Williamson, {C. F.} and Schmitt, {W. M.} and M. Osborn and M. Deady and Zimmerman, {Peter D.} and Blatchley, {C. C.} and Seth, {Kamal K} and M. Sarmiento and B. Parker and Yanhe Jin and Wright, {L. E.} and Onley, {D. S.}",

note = "Funding Information: We thank the Ohio Supercomputer Center in Columbus for making available the Cray Y-MP time to perform the relativistic Hartree shell model calcu-lattons One of us (C F W ) would hke to acknowledge many stimulating and enhghtening conversations with Dr T W Donnelly This work was supported in part by the US Department of Energy un- Funding Information: der Grant No FG02-87ER40370 and Contract No EY-76-C-OZ-3069, and in part by a grant from the National Science Foundation",

year = "1993",

month = aug,

day = "19",

doi = "10.1016/0370-2693(93)90971-J",

language = "English (US)",

volume = "312",

pages = "382--387",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Longitudinal response functions for 40Ca from quasi-elastic electron scattering

AU - Yates, T. C.

AU - Williamson, C. F.

AU - Schmitt, W. M.

AU - Osborn, M.

AU - Deady, M.

AU - Zimmerman, Peter D.

AU - Blatchley, C. C.

AU - Seth, Kamal K

AU - Sarmiento, M.

AU - Parker, B.

AU - Jin, Yanhe

AU - Wright, L. E.

AU - Onley, D. S.

N1 - Funding Information: We thank the Ohio Supercomputer Center in Columbus for making available the Cray Y-MP time to perform the relativistic Hartree shell model calcu-lattons One of us (C F W ) would hke to acknowledge many stimulating and enhghtening conversations with Dr T W Donnelly This work was supported in part by the US Department of Energy un- Funding Information: der Grant No FG02-87ER40370 and Contract No EY-76-C-OZ-3069, and in part by a grant from the National Science Foundation

PY - 1993/8/19

Y1 - 1993/8/19

N2 - Longitudinal response functions were extracted from quasi-elastic electron scattering data on 40Ca 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.

AB - Longitudinal response functions were extracted from quasi-elastic electron scattering data on 40Ca 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.

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