$B_s \to D^{(*)}_s$ form factors from lattice QCD with ${\rm N_f}=2$ Wilson-clover quarks
| Autor: | Blossier, Benoît, Cahue, Pierre Henri, Heitger, Jochen, La Cesa, Simone, Neuendorf, Jan, Zafeiropoulos, Savvas |
|---|---|
| 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Centre de Physique Théorique - UMR 7332 (CPT), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2022 |
| Předmět: |
form factor
new physics [PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat] High Energy Physics::Lattice High Energy Physics::Phenomenology High Energy Physics - Lattice (hep-lat) lattice field theory FOS: Physical sciences LHC-B quark High Energy Physics - Lattice heavy quark High Energy Physics::Experiment universality numerical calculations particle source |
| Zdroj: | PoS 38th International Symposium on Lattice Field Theory 38th International Symposium on Lattice Field Theory, Jul 2021, Online, United States. pp.056, ⟨10.22323/1.396.0056⟩ 38th International Symposium on Lattice Field Theory, Jul 2021, Online, United States |
| DOI: | 10.22323/1.396.0056 |
| Popis: | International audience; We report on a two-flavour lattice QCD determination of the $B_s\to D_s$ and $B_s\to D_s^*$ transitions, which in the heavy quark limit can be parameterised by the form factors $\mathcal{G}$, and $h_{\text A_1}$, $h_{\text A_2}$ and $h_{\text A_3}$. In the search of New Physics through tests of lepton-flavour universality, $B_s$ decay channels are complementary to $B$ decays and widely studied at $B$ factories and LHCb. The purpose of our study is to explore a suitable method to extract form factors associated with $b\to c$ currents from lattice QCD. In particular, we present numerical results for $\mathcal{G}$ and $h_{\text A_1}$. |
| Databáze: | OpenAIRE |
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