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Studies on finite-volume effects in the inclusive semileptonic decays of charmed mesons

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arxiv 2312.16442 v1 pith:5OC6NFGV submitted 2023-12-27 hep-lat

classification hep-lat
keywords effectsfinite-volumeinclusivelatticesemileptonicapproximatelycalculationcharm
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We report on the calculation of the inclusive semileptonic decay of the $D_s$ meson on the lattice. We simulate the $D_s \rightarrow X_s\ell\nu_\ell$ process with M\"obius domain-wall charm and strange quarks, whose masses were approximately tuned to the physical values. We cover the whole kinematical region. The focus of this work is on the systematic error due to finite-volume effects. We construct a model of two-body final states to describe the data on a finite volume lattice of $L \simeq 0.055 \, \text{fm}$ to investigate the extrapolation to the infinite-volume limit.

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Cited by 3 Pith papers

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  1. Study on the $P$-wave form factors contributing to $ B_s $ to $D_s$ inclusive semileptonic decays from lattice simulations

    hep-lat 2025-01 conditional novelty 6.0 of 10

    A first lattice extraction of P-wave Isgur-Wise form factors from four-point correlators indicates a large radial-excitation contribution to the Uraltsev sum rule at zero recoil.

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    hep-lat 2025-02 conditional novelty 4.0 of 10

    On FASTSUM Generation 2L ensembles, Backus-Gilbert and Tikhonov reconstructions agree on the Upsilon ground-state mass, but the decay width is dominated by reconstruction smearing and high-temperature broadening is un...

  3. Approaching the Inverse Problem: Toward Lattice QCD Calculations of Inclusive Hadronic Quantities

    hep-lat 2025-01 conditional novelty 4.0 of 10

    For lattice QCD spectral reconstruction, the Wertevorrat from Nevanlinna-Pick interpolation bounds the analytic-continuation uncertainty, and in a model test this bound falls roughly exponentially with the number of d...

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