تقرير
Low-energy flavour probes of light vector bosons
| العنوان: | Low-energy flavour probes of light vector bosons |
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| المؤلفون: | Di Luzio, Luca, Levati, Gabriele, Paradisi, Paride, Díaz, Xavier Ponce |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Experiment |
| الوصف: | In this work, we construct the chiral Lagrangian for a light spin-1 boson $X$ possessing both vectorial and axial couplings to the light Standard Model quarks $u, d, s$. We then use it in order to describe the tree-level, model-independent contributions to the $\Delta S = 1$ transition $K^\pm \rightarrow \pi^\pm X$, which is induced by Standard Model charged currents and is possibly enhanced by the emission of a longitudinally polarized $X$ boson. Such a flavour observable is then shown to set the best model-independent bounds on the diagonal axial couplings of $X$ to light quarks in the mass range allowed by the decay kinematics, improving the currently available constraints from beam-dump experiments and collider searches. Comment: 8 pages, 2 figures, Proceedings to "Les Rencontres de Physique de la Vall\'ee d'Aoste" (March 5-11, 2023, La Thuile) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1393/ncc/i2024-24009-0 |
| URL الوصول: | http://arxiv.org/abs/2309.07052 |
| رقم الأكسشن: | edsarx.2309.07052 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1393/ncc/i2024-24009-0 |
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