dorsal/arxiv
View SchemaSome aspects of $\Theta^+$ parity determination in the reaction $\gamma N\to \Theta^+ \bar{K}\to N K \bar{K}$
| Authors | A. I. Titov, H. Ejiri, H. Haberzettl, K. Nakayama |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0410098 |
| URL | https://arxiv.org/abs/nucl-th/0410098 |
| DOI | 10.1103/PhysRevC.71.035203 |
| Journal | Phys.Rev. C71 (2005) 035203 |
Abstract
We analyze the problem of how to determine the parity of the $\Theta^+$ pentaquark in the reaction $\gamma N\to K\Theta\to NK\bar{K}$, where $N=n,p$. Our model calculations indicate that the contribution of the non-resonant background of the reaction $\gamma N\to NK\bar{K}$ cannot be neglected, and that suggestions to determine the parity based solely on the initial-stage process $\gamma N\to K\Theta$ cannot be implemented cleanly. We discuss the various mechanisms that contribute to the background, and we identify some spin observables which are sensitive.
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"abstract": "We analyze the problem of how to determine the parity of the $\\Theta^+$\npentaquark in the reaction $\\gamma N\\to K\\Theta\\to NK\\bar{K}$, where $N=n,p$.\nOur model calculations indicate that the contribution of the non-resonant\nbackground of the reaction $\\gamma N\\to NK\\bar{K}$ cannot be neglected, and\nthat suggestions to determine the parity based solely on the initial-stage\nprocess $\\gamma N\\to K\\Theta$ cannot be implemented cleanly. We discuss the\nvarious mechanisms that contribute to the background, and we identify some spin\nobservables which are sensitive.",
"arxiv_id": "nucl-th/0410098",
"authors": [
"A. I. Titov",
"H. Ejiri",
"H. Haberzettl",
"K. Nakayama"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.71.035203",
"journal_ref": "Phys.Rev. C71 (2005) 035203",
"title": "Some aspects of $\\Theta^+$ parity determination in the reaction $\\gamma N\\to \\Theta^+ \\bar{K}\\to N K \\bar{K}$",
"url": "https://arxiv.org/abs/nucl-th/0410098"
},
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