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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

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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...

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Published in: Physical Review Letters
ISSN: 0031-9007 1079-7114
Published: American Physical Society (APS) 2025
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[62] for funding this project by providing computing time on the GCS Supercomputer JUWELS [63] at J&#xFC;lich 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. 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spelling 2025-10-20T14:00:09.4684867 v2 70734 2025-10-20 Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments 9345a6afbdec2a30c155b7a154e7e3de Antonio Smecca Antonio Smecca true false 2025-10-20 BGPS 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. Journal Article Physical Review Letters 135 12 121901 American Physical Society (APS) 0031-9007 1079-7114 19 9 2025 2025-09-19 10.1103/snc6-cpz6 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee 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. 2025-10-20T14:00:09.4684867 2025-10-20T13:42:15.4531411 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Alessandro De Santis 1 Antonio Evangelista 2 Roberto Frezzotti 3 Giuseppe Gagliardi 4 Paolo Gambino 5 Marco Garofalo 6 Christiane Franziska Groß 7 Bartosz Kostrzewa 8 Vittorio Lubicz 9 Francesca Margari 10 Marco Panero 11 Francesco Sanfilippo 12 Silvano Simula 13 Antonio Smecca 14 Nazario Tantalo 15 Carsten Urbach 16 70734__35404__0b2b9858734c4edc941a730e5e2b066f.pdf 70734.VOR.pdf 2025-10-20T13:51:54.4728503 Output 551955 application/pdf Version of Record true Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. true eng https://creativecommons.org/licenses/by/4.0/
title Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
spellingShingle Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
Antonio Smecca
title_short Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
title_full Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
title_fullStr Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
title_full_unstemmed Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
title_sort Inclusive Semileptonic Decays of the Ds Meson: Lattice QCD Confronts Experiments
author_id_str_mv 9345a6afbdec2a30c155b7a154e7e3de
author_id_fullname_str_mv 9345a6afbdec2a30c155b7a154e7e3de_***_Antonio Smecca
author Antonio Smecca
author2 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
format Journal article
container_title Physical Review Letters
container_volume 135
container_issue 12
container_start_page 121901
publishDate 2025
institution Swansea University
issn 0031-9007
1079-7114
doi_str_mv 10.1103/snc6-cpz6
publisher American Physical Society (APS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description 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.
published_date 2025-09-19T05:32:03Z
_version_ 1860791984143204352
score 11.100184

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