New physics effects in leptonic and semileptonic decays
| Autor: | Ana Peñuelas, Olcyr Sumensari, Damir Becirevic, Florentin Jaffredo |
|---|---|
| Přispěvatelé: | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), University of Zurich, Peñuelas, Ana |
| Jazyk: | angličtina |
| Předmět: |
operator: Wilson
Nuclear and High Energy Physics Particle physics Meson B: semileptonic decay 530 Physics Physics beyond the Standard Model effective operator Hadron FOS: Physical sciences 10192 Physics Institute QC770-798 01 natural sciences Standard Model pseudoscalar meson: leptonic decay High Energy Physics - Phenomenology (hep-ph) effective field theory Nuclear and particle physics. Atomic energy. Radioactivity 0103 physical sciences Phenomenology of Field Theories in Higher Dimensions 3106 Nuclear and High Energy Physics 010306 general physics numerical calculations helicity: amplitude analysis Physics form factor 010308 nuclear & particles physics new physics pseudoscalar meson: semileptonic decay High Energy Physics::Phenomenology Scalar (physics) Observable Lattice QCD Pseudoscalar B: leptonic decay High Energy Physics - Phenomenology [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] High Energy Physics::Experiment quantum chromodynamics: lattice |
| Zdroj: | JHEP JHEP, 2021, 05, pp.175. ⟨10.1007/JHEP05(2021)175⟩ Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-37 (2021) Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/jhep05(2021)175 |
| Popis: | We discuss the possibilities of extracting the constraints on New Physics by using the current data on the leptonic and semileptonic decays of pseudoscalar mesons. In doing so we use a general low energy Lagrangian that besides the vector and axial operators also includes the (pseudo-)scalar and tensor ones. In obtaining constraints on New Physics couplings we combine the experimental information concerning several decay modes with the accurate lattice QCD results for the hadronic matrix elements. We propose to study new observables that can be extracted from the angular analysis of the semileptonic decays and discuss their values both in the Standard Model and in some specific scenarios of physics beyond the Standard Model. 39 pages, 8 figures. Version published at JHEP |
| Databáze: | OpenAIRE |
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