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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2024
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| Accès en ligne: | https://arxiv.org/abs/2407.07986 |
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| _version_ | 1866911952405528576 |
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| author | Volkov, M. K. Pivovarov, A. A. Nurlan, K. |
| author_facet | Volkov, M. K. Pivovarov, A. A. Nurlan, K. |
| contents | It is shown that the processes $e^+ e^- \to π^+ π^-$ and $τ^- \to π^- π^0 ν_τ$ can be described in a unified approach in satisfactory agreement with experiment using the vector coupling constant $g_ρ = 6$. In this case, in addition to quark loops, it is also necessary to take into account meson loops corresponding to the next order in $1/N_c$. These loops must be taken into account when describing the $γ(W) \to ρ$ transition, as well as in interaction of mesons in the final state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_07986 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Description of the processes $e^+ e^- \to π^+ π^-$ and $τ^- \to π^- π^0 ν_τ$ in the NJL model with value of the vector coupling constant $ g_ρ = 6$ Volkov, M. K. Pivovarov, A. A. Nurlan, K. High Energy Physics - Phenomenology It is shown that the processes $e^+ e^- \to π^+ π^-$ and $τ^- \to π^- π^0 ν_τ$ can be described in a unified approach in satisfactory agreement with experiment using the vector coupling constant $g_ρ = 6$. In this case, in addition to quark loops, it is also necessary to take into account meson loops corresponding to the next order in $1/N_c$. These loops must be taken into account when describing the $γ(W) \to ρ$ transition, as well as in interaction of mesons in the final state. |
| title | Description of the processes $e^+ e^- \to π^+ π^-$ and $τ^- \to π^- π^0 ν_τ$ in the NJL model with value of the vector coupling constant $ g_ρ = 6$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2407.07986 |