Investigation of nuclear structure by quasi-free scattering with polarized protons

doi:10.1016/0370-2693(81)91070-4

Physics Letters B

Volume 106, Issues 1–2, 29 October 1981, Pages 15-18

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Abstract

Quasi-free scattering with polarized protons can be a sensitive method to probe certain spin correlations in the nuclear wave function. This is demonstrated by the comparison of the effective polarizations following from the shell model and a deuteron cluster model for the nuclei ¹⁴N and ⁶Li.

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Cited by (2)

Polarization in quasi-elastic (p, 2p) reaction on <sup>7</sup>Li nucleus in complete kinematics at 1 GeV
2001, Nuclear Physics A
Polarizations of the secondary protons from the (p, 2p) reactions on $^{7}$ Li nucleus at 1 GeV of the initial proton energy have been measured in a kinematically complete experiment. Two final protons from the reaction were detected in coincidence by means of a two-arm magnetic spectrometer at nonsymmetric scattering angles $Θ_{1} =15°÷26°$ and $Θ_{2} =58.6°$ in the momentum range of the residual nucleus up to 175 MeV $/c$ . Both arms of the spectrometer were equipped with multiwire proportional chamber polarimeters. The resolution of the spectrometer on separation energy of 4.5 MeV (FWHM) was enough to reliably separate S- and P-shell recoil protons.
The experimental data shows a strong deviation from a simple Impulse Approximation expectation, both for S- and P-shell (p, 2p) events. Analysis in the framework of the the Distorted Wave Impulse Approximation has been done in combination with depolarization factors, the latter being found by fits to the data. Simple estimations show that the experimentally found depolarization, in particular for the protons detected in the high-energy arm of the spectrometer, is too large. A significant reduction of the both detected proton polarizations might be explained in the frame of a recently developed approach based on modification of the pp-scattering amplitude in nuclear medium.
Polarization in the Quasielastic Scattering of 1-GeV/c Protons on Light Nuclei
2000, Physics of Atomic Nuclei

^☆: Work partially supported by Financiadora de Estudos e Projetos (FINEP) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).

¹: On leave of absence from the Institut für Theoretische Physik, Tübingen, West Germany.

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Physics Letters B

Investigation of nuclear structure by quasi-free scattering with polarized protons☆

Abstract

Nucl. Phys.

Phys. Lett.

Nucl. Phys.

JINR, El-7559

JINR, El-10820

High-energy electron scattering tables

Phys. Rev. Lett.

Polarization in quasi-elastic (p, 2p) reaction on <sup>7</sup>Li nucleus in complete kinematics at 1 GeV

Polarization in the Quasielastic Scattering of 1-GeV/c Protons on Light Nuclei