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Inclusive semileptonic decays from lattice QCD: analysis of systematic effects

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arxiv 2504.03358 v1 pith:EK2W4WQ4 submitted 2025-04-04 hep-lat hep-ph

classification hep-lathep-ph
keywords effectslatticesystematiccontroldecaysfinalfinite-volumeinclusive
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Lattice QCD calculations of inclusive semileptonic decay rates involve new types of systematic effects, such as truncation errors in the estimation of energy integrals, or finite-volume effects for multi-body final states. We investigate them for the lattice data of $D_s \to X_s \ell\nu$ decays, obtained using M\"obius domain-wall fermions. Separating the ground-state and excited-state contributions results in better control over these systematic effects. With the Chebyshev polynomial approximation, the truncation error is under control, while the finite-volume effects are estimated using a model to describe two-body final states.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Standard Model tests with smeared experiment and theory

    hep-lat 2026-03 conditional novelty 6.0 of 10

    Finite-width Poisson smearing of both experiment and lattice theory permits model-independent Standard Model comparisons for inclusive semileptonic decays and for interference observables in rare semileptonic decays, ...

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    hep-ph 2025-07 conditional novelty 6.0 of 10

    A global fit to inclusive semileptonic B decay moments and rate constrains all seven dimension-six new-physics parameters, finding no significant BSM signal but new bounds, especially on the right-handed vector Wilson...

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    cs.CL 2025-08 unverdicted novelty 4.0 of 10

    Large vision-language models are reported to be weak at multimodal sarcasm, and a training-free knowledge-augmented framework is claimed to improve sarcasm detection and explanation.

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