The Graviton-Electron Vertex and The f 0 Meson Decay Width
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad San Francisco de Quito
2015
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| _version_ | 1876430580584808448 |
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| author | Carlos M. Montufar |
| author_facet | Carlos M. Montufar |
| contents | The Graviton-Electron Vertex and The f 0 Meson Decay Width Carlos M. Montufar Multidisciplinaria (Ciencias Naturales y Exactas) Lehmann graviton Symansik Zimmermann electron interaction It takes three form factors to describe the graviton-electron interaction. In the limit of zero momentum transfer these form factors essentially reduce to the mass of the electron. In this article we show that under certain conditions the form factors of the graviton-electron vertex function vanish at high energies. We first develop the exact massless spin-2+ propagators in terms of two spectral functions. Working in a covariant gauge, which requires the use of an indefinite metric, we show that the spectral functions are positive definite. We then extend a theorem of Lehmann, Symansik, and Zimmermann, namely the vanishing of the π-N vertex function at high energies, to the graviton-electron interaction. 2015 artículo científico 1390-5384 https://www.redalyc.org/articulo.oa?id=726180879001 en http://www.redalyc.org/revista.oa?id=7261 Avances en Ciencias e Ingenierías application/pdf Universidad San Francisco de Quito Avances en Ciencias e Ingenierías (Ecuador) Num.1 Vol.7 |
| format | Artículo científico |
| id | redalyc_726180879001 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad San Francisco de Quito |
| spellingShingle | The Graviton-Electron Vertex and The f 0 Meson Decay Width Carlos M. Montufar Multidisciplinaria (Ciencias Naturales y Exactas) Lehmann graviton Symansik Zimmermann electron interaction The Graviton-Electron Vertex and The f 0 Meson Decay Width Carlos M. Montufar Multidisciplinaria (Ciencias Naturales y Exactas) Lehmann graviton Symansik Zimmermann electron interaction It takes three form factors to describe the graviton-electron interaction. In the limit of zero momentum transfer these form factors essentially reduce to the mass of the electron. In this article we show that under certain conditions the form factors of the graviton-electron vertex function vanish at high energies. We first develop the exact massless spin-2+ propagators in terms of two spectral functions. Working in a covariant gauge, which requires the use of an indefinite metric, we show that the spectral functions are positive definite. We then extend a theorem of Lehmann, Symansik, and Zimmermann, namely the vanishing of the π-N vertex function at high energies, to the graviton-electron interaction. 2015 artículo científico 1390-5384 https://www.redalyc.org/articulo.oa?id=726180879001 en http://www.redalyc.org/revista.oa?id=7261 Avances en Ciencias e Ingenierías application/pdf Universidad San Francisco de Quito Avances en Ciencias e Ingenierías (Ecuador) Num.1 Vol.7 |
| title | The Graviton-Electron Vertex and The f 0 Meson Decay Width |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) Lehmann graviton Symansik Zimmermann electron interaction |
| url | https://www.redalyc.org/articulo.oa?id=726180879001 |