Implications of spin-current couplings for PA in inelastic proton scattering

W. G. Love, J. R. Comfort

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Nonlocal spin-dependent couplings in the effective nucleon-nucleon interaction are shown to probe current spin correlations in inelastic nuclear excitations. Together, these couplings and correlations provide an important dynamical source of polarization-analyzing-power differences observed in inelastic proton scattering. This is illustrated explicitly by schematic calculations for 0+'1+ and 0+'0- transitions. More realistic distorted-wave impulse approximation calculations have been made for the 0+'1+ transition in Zr90 at Ex=8.9 MeV which support the more transparent schematic considerations. Distorted-wave impulse approximation calculations are also compared with experimental (p,p') data for the two lowest 1+ excitations in C12. For isovector 0+'1+ transitions these nuclear structure spin current correlations also enter 2 decay through the "induced tensor" couplings, and this relationship is used to help identify the nonlocality in the nucleon-nucleon effective interaction.

Original languageEnglish (US)
Pages (from-to)2135-2145
Number of pages11
JournalPhysical Review C
Volume29
Issue number6
DOIs
StatePublished - 1984

Fingerprint

proton scattering
inelastic scattering
circuit diagrams
impulses
nucleon-nucleon interactions
nuclear structure
approximation
excitation
tensors
probes
decay
polarization
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Implications of spin-current couplings for PA in inelastic proton scattering. / Love, W. G.; Comfort, J. R.

In: Physical Review C, Vol. 29, No. 6, 1984, p. 2135-2145.

Research output: Contribution to journalArticle

Love, W. G. ; Comfort, J. R. / Implications of spin-current couplings for PA in inelastic proton scattering. In: Physical Review C. 1984 ; Vol. 29, No. 6. pp. 2135-2145.
@article{d363dd9e4b634986aff506cd66066a61,
title = "Implications of spin-current couplings for PA in inelastic proton scattering",
abstract = "Nonlocal spin-dependent couplings in the effective nucleon-nucleon interaction are shown to probe current spin correlations in inelastic nuclear excitations. Together, these couplings and correlations provide an important dynamical source of polarization-analyzing-power differences observed in inelastic proton scattering. This is illustrated explicitly by schematic calculations for 0+'1+ and 0+'0- transitions. More realistic distorted-wave impulse approximation calculations have been made for the 0+'1+ transition in Zr90 at Ex=8.9 MeV which support the more transparent schematic considerations. Distorted-wave impulse approximation calculations are also compared with experimental (p,p') data for the two lowest 1+ excitations in C12. For isovector 0+'1+ transitions these nuclear structure spin current correlations also enter 2 decay through the {"}induced tensor{"} couplings, and this relationship is used to help identify the nonlocality in the nucleon-nucleon effective interaction.",
author = "Love, {W. G.} and Comfort, {J. R.}",
year = "1984",
doi = "10.1103/PhysRevC.29.2135",
language = "English (US)",
volume = "29",
pages = "2135--2145",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "6",

}

TY - JOUR

T1 - Implications of spin-current couplings for PA in inelastic proton scattering

AU - Love, W. G.

AU - Comfort, J. R.

PY - 1984

Y1 - 1984

N2 - Nonlocal spin-dependent couplings in the effective nucleon-nucleon interaction are shown to probe current spin correlations in inelastic nuclear excitations. Together, these couplings and correlations provide an important dynamical source of polarization-analyzing-power differences observed in inelastic proton scattering. This is illustrated explicitly by schematic calculations for 0+'1+ and 0+'0- transitions. More realistic distorted-wave impulse approximation calculations have been made for the 0+'1+ transition in Zr90 at Ex=8.9 MeV which support the more transparent schematic considerations. Distorted-wave impulse approximation calculations are also compared with experimental (p,p') data for the two lowest 1+ excitations in C12. For isovector 0+'1+ transitions these nuclear structure spin current correlations also enter 2 decay through the "induced tensor" couplings, and this relationship is used to help identify the nonlocality in the nucleon-nucleon effective interaction.

AB - Nonlocal spin-dependent couplings in the effective nucleon-nucleon interaction are shown to probe current spin correlations in inelastic nuclear excitations. Together, these couplings and correlations provide an important dynamical source of polarization-analyzing-power differences observed in inelastic proton scattering. This is illustrated explicitly by schematic calculations for 0+'1+ and 0+'0- transitions. More realistic distorted-wave impulse approximation calculations have been made for the 0+'1+ transition in Zr90 at Ex=8.9 MeV which support the more transparent schematic considerations. Distorted-wave impulse approximation calculations are also compared with experimental (p,p') data for the two lowest 1+ excitations in C12. For isovector 0+'1+ transitions these nuclear structure spin current correlations also enter 2 decay through the "induced tensor" couplings, and this relationship is used to help identify the nonlocality in the nucleon-nucleon effective interaction.

UR - http://www.scopus.com/inward/record.url?scp=0000739914&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000739914&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.29.2135

DO - 10.1103/PhysRevC.29.2135

M3 - Article

AN - SCOPUS:0000739914

VL - 29

SP - 2135

EP - 2145

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 6

ER -