# Spectroscopic factors in [sup 40]Ca and [sup 208]Pb from ([ital e],[ital e][prime][ital p]): Fully relativistic analysis

## Abstract

We present results for spectroscopic factors of the outermost shells in [sup 40]Ca and [sup 208]Pb, which have been derived from the comparsion between the available quasielastic ([ital e],[ital e][prime][ital p]) data from NIKHEF-K and the corresponding calculated cross sections obtained within a fully relativistic formalism. We include exactly the effect of Coulomb disortion on the electron wave functions and discuss its role in the extraction of the spectroscopic factors from experiment. Without any adjustable parameter, we find spectroscopic factors of about 70%, consistent with theoretical predictions. We compare our results with previous relativistic and nonrelativistic analyses of ([ital e],[ital e][prime][ital p]) data. In addition to Coulomb distortion effects, we discuss different choices of the nucleon current operator and also analyze the effects due to the relativistic treatment of the outgoing-distorted and bound nucleon wave functions.

- Authors:

- (Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientificas, Serrano 119, E-28006 Madrid (Spain))

- Publication Date:

- OSTI Identifier:
- 5800033

- Resource Type:
- Journal Article

- Journal Name:
- Physical Review, C (Nuclear Physics); (United States)

- Additional Journal Information:
- Journal Volume: 48:6; Journal ID: ISSN 0556-2813

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CALCIUM 40 TARGET; ELECTRON REACTIONS; QUASI-ELASTIC SCATTERING; SPECTROSCOPIC FACTORS; LEAD 208 TARGET; CROSS SECTIONS; INELASTIC SCATTERING; PROTONS; RELATIVISTIC RANGE; WAVE FUNCTIONS; BARYONS; CHARGED-PARTICLE REACTIONS; DIRECT REACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FUNCTIONS; HADRONS; LEPTON REACTIONS; NUCLEAR REACTIONS; NUCLEONS; QUASI-FREE REACTIONS; SCATTERING; TARGETS; 663420* - Lepton-Induced Reactions & Scattering- (1992-); 663300 - Nuclear Reactions & Scattering, General- (1992-); 663110 - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)

### Citation Formats

```
Udias, J.M., Sarriguren, P., Moya de Guerra, E., Garrido, E., and Caballero, J.A.
```*Spectroscopic factors in [sup 40]Ca and [sup 208]Pb from ([ital e],[ital e][prime][ital p]): Fully relativistic analysis*. United States: N. p., 1993.
Web. doi:10.1103/PhysRevC.48.2731.

```
Udias, J.M., Sarriguren, P., Moya de Guerra, E., Garrido, E., & Caballero, J.A.
```*Spectroscopic factors in [sup 40]Ca and [sup 208]Pb from ([ital e],[ital e][prime][ital p]): Fully relativistic analysis*. United States. doi:10.1103/PhysRevC.48.2731.

```
Udias, J.M., Sarriguren, P., Moya de Guerra, E., Garrido, E., and Caballero, J.A. Wed .
"Spectroscopic factors in [sup 40]Ca and [sup 208]Pb from ([ital e],[ital e][prime][ital p]): Fully relativistic analysis". United States. doi:10.1103/PhysRevC.48.2731.
```

```
@article{osti_5800033,
```

title = {Spectroscopic factors in [sup 40]Ca and [sup 208]Pb from ([ital e],[ital e][prime][ital p]): Fully relativistic analysis},

author = {Udias, J.M. and Sarriguren, P. and Moya de Guerra, E. and Garrido, E. and Caballero, J.A.},

abstractNote = {We present results for spectroscopic factors of the outermost shells in [sup 40]Ca and [sup 208]Pb, which have been derived from the comparsion between the available quasielastic ([ital e],[ital e][prime][ital p]) data from NIKHEF-K and the corresponding calculated cross sections obtained within a fully relativistic formalism. We include exactly the effect of Coulomb disortion on the electron wave functions and discuss its role in the extraction of the spectroscopic factors from experiment. Without any adjustable parameter, we find spectroscopic factors of about 70%, consistent with theoretical predictions. We compare our results with previous relativistic and nonrelativistic analyses of ([ital e],[ital e][prime][ital p]) data. In addition to Coulomb distortion effects, we discuss different choices of the nucleon current operator and also analyze the effects due to the relativistic treatment of the outgoing-distorted and bound nucleon wave functions.},

doi = {10.1103/PhysRevC.48.2731},

journal = {Physical Review, C (Nuclear Physics); (United States)},

issn = {0556-2813},

number = ,

volume = 48:6,

place = {United States},

year = {1993},

month = {12}

}