dorsal/arxiv
View SchemaK -> pi pi and a light scalar meson
| Authors | J. C. R. Bloch, M. A. Ivanov, T. Mizutani, C. D. Roberts, S. M. Schmidt |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9910029 |
| URL | https://arxiv.org/abs/nucl-th/9910029 |
| DOI | 10.1103/PhysRevC.62.025206 |
| Journal | Phys.Rev.C62:025206,2000 |
Abstract
We explore the Delta-I= 1/2 rule and epsilon'/epsilon in K -> pi pi transitions using a Dyson-Schwinger equation model. Exploiting the feature that QCD penguin operators direct K^0_S transitions through 0^{++} intermediate states, we find an explanation of the enhancement of I=0 K -> pi pi transitions in the contribution of a light sigma-meson. This mechanism also affects epsilon'/epsilon.
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"abstract": "We explore the Delta-I= 1/2 rule and epsilon\u0027/epsilon in K -\u003e pi pi\ntransitions using a Dyson-Schwinger equation model. Exploiting the feature that\nQCD penguin operators direct K^0_S transitions through 0^{++} intermediate\nstates, we find an explanation of the enhancement of I=0 K -\u003e pi pi transitions\nin the contribution of a light sigma-meson. This mechanism also affects\nepsilon\u0027/epsilon.",
"arxiv_id": "nucl-th/9910029",
"authors": [
"J. C. R. Bloch",
"M. A. Ivanov",
"T. Mizutani",
"C. D. Roberts",
"S. M. Schmidt"
],
"categories": [
"nucl-th",
"hep-ex",
"hep-ph"
],
"doi": "10.1103/PhysRevC.62.025206",
"journal_ref": "Phys.Rev.C62:025206,2000",
"title": "K -\u003e pi pi and a light scalar meson",
"url": "https://arxiv.org/abs/nucl-th/9910029"
},
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