About the inclusion of an infinite number of resonances in anomalous decays
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedad Mexicana de Física A.C.
2014
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| _version_ | 1876431088990027776 |
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| author | D. García Gudiño |
| author_facet | D. García Gudiño |
| contents | About the inclusion of an infinite number of resonances in anomalous decays D. García Gudiño G. Toledo Sánchez Física, Astronomía y Matemáticas Strong decays vector mesons effective couplings The usual procedure to extract the g eff !Ωº effective coupling from experimental data resumes not only the Ω meson effect but also all its additional radial excitation modes. In this work, we consider a particular form of the spectrum and relations among the couplings to explicitly add the radial excitations of the Ω meson from the ! ! º 0 ∞ and ! ! 3 º decays. This allows to identify the single g !Ωº = 8 : 3 ß 0 : 8 GeV ° 1 , which is about 40% smaller than the effective geff !Ωº . We verify the consistency with the chiral approach in the º 0 ! ∞∞ and ∞ § ! 3 º processes, exhibiting the role of each contribution. In particular, we show that for the ∞ § ! 3 º decay, the usual relation A V MD ∞ 3 º = (3 = 2) A WZW ∞ 3 º , encodes all the vector contributions and not only the Ω meson one. In addition, we find that there is a strong (accidental) cancelation between the radial excitations and the contact term contributions. 2014 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57031047005 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.60 |
| format | Artículo científico |
| id | redalyc_57031047005 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | About the inclusion of an infinite number of resonances in anomalous decays D. García Gudiño Física, Astronomía y Matemáticas Strong decays vector mesons effective couplings About the inclusion of an infinite number of resonances in anomalous decays D. García Gudiño G. Toledo Sánchez Física, Astronomía y Matemáticas Strong decays vector mesons effective couplings The usual procedure to extract the g eff !Ωº effective coupling from experimental data resumes not only the Ω meson effect but also all its additional radial excitation modes. In this work, we consider a particular form of the spectrum and relations among the couplings to explicitly add the radial excitations of the Ω meson from the ! ! º 0 ∞ and ! ! 3 º decays. This allows to identify the single g !Ωº = 8 : 3 ß 0 : 8 GeV ° 1 , which is about 40% smaller than the effective geff !Ωº . We verify the consistency with the chiral approach in the º 0 ! ∞∞ and ∞ § ! 3 º processes, exhibiting the role of each contribution. In particular, we show that for the ∞ § ! 3 º decay, the usual relation A V MD ∞ 3 º = (3 = 2) A WZW ∞ 3 º , encodes all the vector contributions and not only the Ω meson one. In addition, we find that there is a strong (accidental) cancelation between the radial excitations and the contact term contributions. 2014 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57031047005 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.60 |
| title | About the inclusion of an infinite number of resonances in anomalous decays |
| topic | Física, Astronomía y Matemáticas Strong decays vector mesons effective couplings |
| url | https://www.redalyc.org/articulo.oa?id=57031047005 |