No Cover Image

Journal article 210 views 65 downloads

Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments

Alessandro De Santis, Antonio Evangelista, Roberto Frezzotti, Giuseppe Gagliardi, Paolo Gambino, Marco Garofalo, Christiane Franziska Groß, Bartosz Kostrzewa, Vittorio Lubicz, Francesca Margari, Marco Panero, Francesco Sanfilippo, Silvano Simula, Antonio Smecca, Nazario Tantalo, Carsten Urbach

Physical Review Letters, Volume: 135, Issue: 12, Start page: 121901

Swansea University Author: Antonio Smecca

  • 70734.VOR.pdf

    PDF | Version of Record

    Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.

    Download (539.02KB)

Check full text

DOI (Published version): 10.1103/snc6-cpz6

Abstract

We present the results of a first-principles theoretical study of the inclusive semileptonic decays of the Ds meson. We performed a state-of-the-art lattice QCD calculation by taking into account all sources of systematic errors. A detailed discussion of our lattice calculation, demonstrating that i...

Full description

Published in: Physical Review Letters
ISSN: 0031-9007 1079-7114
Published: American Physical Society (APS) 2025
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa70734
Abstract: We present the results of a first-principles theoretical study of the inclusive semileptonic decays of the Ds meson. We performed a state-of-the-art lattice QCD calculation by taking into account all sources of systematic errors. A detailed discussion of our lattice calculation, demonstrating that inclusive semileptonic decays can nowadays be studied on the lattice at a phenomenologically relevant level of accuracy, is the subject of a companion paper [A. De Santis et al., Inclusive semileptonic decays of the Ds meson: A first-principles lattice QCD calculation, Phys. Rev. D 112, 054503 (2025)]. Here, we focus on the phenomenological implications of our results. Using the current best estimates of the relevant Cabibbo-Kobayashi-Maskawa (CKM) matrix elements, our theoretical predictions for the decay rate and for the first two lepton-energy moments are in very good agreement with the corresponding experimental measurements. We also argue that, while the inclusive Ds channel is not yet competitive with the exclusive channels in the |Vcs| determination, the situation can be significantly improved in the near future.
College: Faculty of Science and Engineering
Funders: The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. [62] for funding this project by providing computing time on the GCS Supercomputer JUWELS [63] at Jülich Supercomputing Centre (JSC) and on the GCS Supercomputers SuperMUC-NG at Leibniz Supercomputing Centre, and the granted access to the Marvin cluster hosted by the University of Bonn. The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing HPC resources (Project ID PHY21001). The authors gratefully acknowledge Partnership for Advanced Computing in Europe [64] for awarding access to HAWK at HLRS within the project with Id Acid 4886. We acknowledge the Swiss National Supercomputing Centre (CSCS) and the EuroHPC Joint Undertaking for awarding this project access to the LUMI [65] supercomputer, owned by the EuroHPC Joint Undertaking, hosted by Center for Science (Finland) [66] and the LUMI Consortium through the Chronos programme under Project IDs CH17-CSCS-CYP. We acknowledge EuroHPC Joint Undertaking for awarding the Project ID EHPC-EXT-2023E02-052 access to MareNostrum5 hosted by at the Barcelona Supercomputing Center, Spain. This work has been supported by the MKW NRW under the funding code NW21-024-A as part of NRW-FAIR and by the Italian Ministry of University and Research (MUR) and the European Union (EU)—Next Generation EU, Mission 4, Component 1, PRIN 2022, CUP F53D23001480006 and CUP D53D23002830006. We acknowledge support from the Exploring New Physics, Lattice QCD 123, Statistical Field Theory, and SPIF Scientific Initiatives of the Italian Nuclear Physics Institute (INFN). F. S. is supported by Italian Research Center on High Performance Computing-Centro Nazionale di Ricerca in High Performance Computing, Big Data and Quantum Computing [67], funded by European Union-NextGenerationEU and by Italian Ministry of University and Research (MUR) Projects FIS 0000155. A. S. is supported by STFC Grant No. ST/X000648/1. We thank Paolo Garbarino for helpful discussions.
Issue: 12
Start Page: 121901

Similar Items