dorsal/arxiv
View SchemaExperiments with $\Xi^-$ atoms
| Authors | C. J. Batty, E. Friedman, A. Gal |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9809042 |
| URL | https://arxiv.org/abs/nucl-th/9809042 |
| DOI | 10.1103/PhysRevC.59.295 |
| Journal | Phys.Rev.C59:295-304,1999 |
Abstract
Experiments with $\Xi^-$ atoms are proposed in order to study the nuclear interaction of $\Xi$ hyperons. The production of $\Xi^-$ in the ($K^{-}$, $K^{+}$) reaction, the $\Xi^-$ stopping in matter, and its atomic cascade are incorporated within a realistic evaluation of the results expected for $\Xi^-$ X-ray spectra across the periodic table, using an assumed $\Xi$-nucleus optical potential $V_{opt}$. Several optimal targets for measuring the strong-interaction shift and width of the X-ray transition to the `last' atomic level observed are singled out: F, Cl, I, Pb. The sensitivity of these observables to the parameters of $V_{opt}$ is considered. The relevance of such experiments is discussed in the context of strangeness -2 nuclear physics and multistrange nuclear matter. Finally, with particular reference to searches for the $H$ dibaryon, the properties of $\Xi^-d$ atoms are also discussed. The role of Stark mixing, its effect on $S$ and $P$ state capture of $\Xi^-$ by the deuteron, together with estimates of the resulting probability for producing the $H$ dibaryon are considered in detail.
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"abstract": "Experiments with $\\Xi^-$ atoms are proposed in order to study the nuclear\ninteraction of $\\Xi$ hyperons. The production of $\\Xi^-$ in the ($K^{-}$,\n$K^{+}$) reaction, the $\\Xi^-$ stopping in matter, and its atomic cascade are\nincorporated within a realistic evaluation of the results expected for $\\Xi^-$\nX-ray spectra across the periodic table, using an assumed $\\Xi$-nucleus optical\npotential $V_{opt}$. Several optimal targets for measuring the\nstrong-interaction shift and width of the X-ray transition to the `last\u0027 atomic\nlevel observed are singled out: F, Cl, I, Pb. The sensitivity of these\nobservables to the parameters of $V_{opt}$ is considered. The relevance of such\nexperiments is discussed in the context of strangeness -2 nuclear physics and\nmultistrange nuclear matter. Finally, with particular reference to searches for\nthe $H$ dibaryon, the properties of $\\Xi^-d$ atoms are also discussed. The role\nof Stark mixing, its effect on $S$ and $P$ state capture of $\\Xi^-$ by the\ndeuteron, together with estimates of the resulting probability for producing\nthe $H$ dibaryon are considered in detail.",
"arxiv_id": "nucl-th/9809042",
"authors": [
"C. J. Batty",
"E. Friedman",
"A. Gal"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.59.295",
"journal_ref": "Phys.Rev.C59:295-304,1999",
"title": "Experiments with $\\Xi^-$ atoms",
"url": "https://arxiv.org/abs/nucl-th/9809042"
},
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