dorsal/arxiv
View SchemaOff-Diagonal Hyperfine Interaction and Parity Non-conservation in Cesium
| Authors | V. A. Dzuba, V. V. Flambaum |
|---|---|
| Categories | |
| ArXiv ID | physics/0005038 |
| URL | https://arxiv.org/abs/physics/0005038 |
| DOI | 10.1103/PhysRevA.62.052101 |
| Journal | Phys.Rev.A62:052101,2000 |
Abstract
We have performed relativistic many-body calculations of the hyperfine interaction in the $6s$ and $7s$ states of Cs, including the off-diagonal matrix element. The calculations were used to determine the accuracy of the semi-empirical formula for the electromagnetic transition amplitude $<6s|M1|7s>$ induced by the hyperfine interaction. We have found that even though the contribution of the many-body effects into the matrix elements is very large, the square root formula $<6s|H_{hfs}|7s > = \sqrt{< 6s|H_{hfs}|6s > < 7s|H_{hfs}|7s >}$ remains valid to the accuracy of a fraction of $10^{-3}$. The result for the M1-amplitude is used in the interpretation of the parity-violation measurement in the $6s-7s$ transition in Cs which claims a possible deviation from the Standard model.
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"abstract": "We have performed relativistic many-body calculations of the hyperfine\ninteraction in the $6s$ and $7s$ states of Cs, including the off-diagonal\nmatrix element. The calculations were used to determine the accuracy of the\nsemi-empirical formula for the electromagnetic transition amplitude\n$\u003c6s|M1|7s\u003e$ induced by the hyperfine interaction. We have found that even\nthough the contribution of the many-body effects into the matrix elements is\nvery large, the square root formula $\u003c6s|H_{hfs}|7s \u003e = \\sqrt{\u003c 6s|H_{hfs}|6s \u003e\n\u003c 7s|H_{hfs}|7s \u003e}$ remains valid to the accuracy of a fraction of $10^{-3}$.\nThe result for the M1-amplitude is used in the interpretation of the\nparity-violation measurement in the $6s-7s$ transition in Cs which claims a\npossible deviation from the Standard model.",
"arxiv_id": "physics/0005038",
"authors": [
"V. A. Dzuba",
"V. V. Flambaum"
],
"categories": [
"physics.atom-ph",
"nucl-th"
],
"doi": "10.1103/PhysRevA.62.052101",
"journal_ref": "Phys.Rev.A62:052101,2000",
"title": "Off-Diagonal Hyperfine Interaction and Parity Non-conservation in Cesium",
"url": "https://arxiv.org/abs/physics/0005038"
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