Conserved Currents are Not Anomaly-Safe
Fuente:
arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866913186526003200 |
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| author | Smith, Tyler B. Tait, Tim M. P. |
| author_facet | Smith, Tyler B. Tait, Tim M. P. |
| contents | New vector bosons that are coupled to conserved currents in the Standard Model exhibit enhanced rates below the electroweak scale from anomalous triangle amplitudes, leading to (energy/vector mass)$^2$ enhancements to rare Z decays and flavor-changing meson decays into the longitudinally polarized vector boson. In the case of a vector boson gauging $U(1)_{B-L}$, the mass gap between the top quark and the remaining SM fermions leads to (energy/vector mass)$^2$ enhancements for processes with momentum transfer below the top mass. In addition, we examine the case of an intergenerational $U(1)_{B_3 - L_2}$ that has been proposed to resolve the $(g-2)_μ$ anomaly with an MeV scale DM candidate, and we find that these enhanced processes constrain the entire parameter space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_02483 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Conserved Currents are Not Anomaly-Safe Smith, Tyler B. Tait, Tim M. P. High Energy Physics - Phenomenology High Energy Physics - Experiment New vector bosons that are coupled to conserved currents in the Standard Model exhibit enhanced rates below the electroweak scale from anomalous triangle amplitudes, leading to (energy/vector mass)$^2$ enhancements to rare Z decays and flavor-changing meson decays into the longitudinally polarized vector boson. In the case of a vector boson gauging $U(1)_{B-L}$, the mass gap between the top quark and the remaining SM fermions leads to (energy/vector mass)$^2$ enhancements for processes with momentum transfer below the top mass. In addition, we examine the case of an intergenerational $U(1)_{B_3 - L_2}$ that has been proposed to resolve the $(g-2)_μ$ anomaly with an MeV scale DM candidate, and we find that these enhanced processes constrain the entire parameter space. |
| title | Conserved Currents are Not Anomaly-Safe |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2401.02483 |