# Calculation of Radiative Corrections to E1 matrix elements in the Neutral Alkalis

## Abstract

Radiative corrections to E1 matrix elements for ns-np transitions in the alkali metal atoms lithium through francium are evaluated. They are found to be small for the lighter alkalis but significantly larger for the heavier alkalis, and in the case of cesium much larger than the experimental accuracy. The relation of the matrix element calculation to a recent decay rate calculation for hydrogenic ions is discussed, and application of the method to parity nonconservation in cesium is described.

- Authors:

- Publication Date:

- Research Org.:
- Lawrence Livermore National Lab., Livermore, CA (US)

- Sponsoring Org.:
- US Department of Energy (US)

- OSTI Identifier:
- 15011543

- Report Number(s):
- UCRL-JRNL-206956

TRN: US0501321

- DOE Contract Number:
- W-7405-ENG-48

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physical Review A; Journal Volume: 71; Journal Issue: 2; Other Information: Journal published February 1, 2005; PBD: 28 Sep 2004

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 74 ATOMIC AND MOLECULAR PHYSICS; ACCURACY; ALKALI METALS; ATOMS; CESIUM; DECAY; FRANCIUM; HYDROXIDES; LITHIUM; MATRIX ELEMENTS; P INVARIANCE; RADIATIVE CORRECTIONS

### Citation Formats

```
Sapirstein, J, and Cheng, K T.
```*Calculation of Radiative Corrections to E1 matrix elements in the Neutral Alkalis*. United States: N. p., 2004.
Web.

```
Sapirstein, J, & Cheng, K T.
```*Calculation of Radiative Corrections to E1 matrix elements in the Neutral Alkalis*. United States.

```
Sapirstein, J, and Cheng, K T. Tue .
"Calculation of Radiative Corrections to E1 matrix elements in the Neutral Alkalis". United States.
doi:. https://www.osti.gov/servlets/purl/15011543.
```

```
@article{osti_15011543,
```

title = {Calculation of Radiative Corrections to E1 matrix elements in the Neutral Alkalis},

author = {Sapirstein, J and Cheng, K T},

abstractNote = {Radiative corrections to E1 matrix elements for ns-np transitions in the alkali metal atoms lithium through francium are evaluated. They are found to be small for the lighter alkalis but significantly larger for the heavier alkalis, and in the case of cesium much larger than the experimental accuracy. The relation of the matrix element calculation to a recent decay rate calculation for hydrogenic ions is discussed, and application of the method to parity nonconservation in cesium is described.},

doi = {},

journal = {Physical Review A},

number = 2,

volume = 71,

place = {United States},

year = {Tue Sep 28 00:00:00 EDT 2004},

month = {Tue Sep 28 00:00:00 EDT 2004}

}

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