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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Blossier%2C+B&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Blossier%2C+B&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Blossier%2C+B&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.10123">arXiv:2411.10123</a> <span> [<a href="https://arxiv.org/pdf/2411.10123">pdf</a>, <a href="https://arxiv.org/format/2411.10123">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Hadronic decay of vector charmonium from the lattice </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=Neuendorf%2C+J">Jan Neuendorf</a>, <a href="/search/hep-lat?searchtype=author&query=Jos%C3%A9%2C+T+S">Teseo San Jos茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.10123v1-abstract-short" style="display: inline;"> Estimating decay parameters in lattice simulations is a computationally demanding problem, requiring several volumes and momenta. We explore an alternative approach, where the transition amplitude can be extracted from the spectral decomposition of particular ratios built from correlation functions. This so-called ratio method has the advantage of not needing various irreducible representations or… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.10123v1-abstract-full').style.display = 'inline'; document.getElementById('2411.10123v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.10123v1-abstract-full" style="display: none;"> Estimating decay parameters in lattice simulations is a computationally demanding problem, requiring several volumes and momenta. We explore an alternative approach, where the transition amplitude can be extracted from the spectral decomposition of particular ratios built from correlation functions. This so-called ratio method has the advantage of not needing various irreducible representations or volumes, and it allows us to predict the decay width $螕$ and the energy shift $蔚$ of the spectrum directly. In this work, we apply this method to study the hadronic decay $蠄(3770)\to D\bar{D}$ on two CLS $N_\text{f}=2$ ensembles. This approach requires close to on-shell kinematics to work, and we employ twisted boundary conditions to precisely tune the on-shell point. Although our study is yet to approach the continuum limit, we find a value of $螕$ fully compatible to the physical result, and $蔚$ informs us by how much our spectrum would shift in a fully dynamical simulation. Besides lattice calculations, many analytical tools have been proposed to understand decay processes. A relatively simple, early example is the ${}^3P_0$ quark model. By fixing its free parameters, we find that it describes well the lattice data for various kinematics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.10123v1-abstract-full').style.display = 'none'; document.getElementById('2411.10123v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">22 pages, 8 figures, 8 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MS-TP-24-36 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.12084">arXiv:2409.12084</a> <span> [<a href="https://arxiv.org/pdf/2409.12084">pdf</a>, <a href="https://arxiv.org/format/2409.12084">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> The $畏_c$-meson leading-twist distribution amplitude </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mangin-Brinet%2C+M">Mariane Mangin-Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Ch%C3%A1vez%2C+J+M+M">Jos茅 Manuel Morgado Ch谩vez</a>, <a href="/search/hep-lat?searchtype=author&query=Jos%C3%A9%2C+T+S">Teseo San Jos茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.12084v1-abstract-short" style="display: inline;"> In this project, we employ the short-distance factorization to compute the distribution amplitude of the $畏_c$-meson from Lattice QCD at leading twist. We employ a set of CLS $N_f=2$ ensembles at three lattice spacings and various quark masses to extrapolate the pseudo distribution to the physical point in the isospin limit. We solve the inverse problem modeling the distribution amplitude, and we… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12084v1-abstract-full').style.display = 'inline'; document.getElementById('2409.12084v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.12084v1-abstract-full" style="display: none;"> In this project, we employ the short-distance factorization to compute the distribution amplitude of the $畏_c$-meson from Lattice QCD at leading twist. We employ a set of CLS $N_f=2$ ensembles at three lattice spacings and various quark masses to extrapolate the pseudo distribution to the physical point in the isospin limit. We solve the inverse problem modeling the distribution amplitude, and we match our results to the light-cone in the $\overline{\text{MS}}$-scheme. We include a complete error budget, and we compare to two alternative approaches: non-relativistic QCD and Dyson-Schwinger equations, finding good agreement with the latter but not with the former. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12084v1-abstract-full').style.display = 'none'; document.getElementById('2409.12084v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 3 figures, contribution to the 41st International Symposium on Lattice Field Theory (LATTICE2024), 28 July - 3 August 2024, Liverpool, UK</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.03609">arXiv:2409.03609</a> <span> [<a href="https://arxiv.org/pdf/2409.03609">pdf</a>, <a href="https://arxiv.org/format/2409.03609">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Lattice QCD extraction of the $畏_{c}$-meson $t$-dependent parton distribution function </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mezrag%2C+C">C. Mezrag</a>, <a href="/search/hep-lat?searchtype=author&query=Ch%C3%A1vez%2C+J+M+M">J. M. Morgado Ch谩vez</a>, <a href="/search/hep-lat?searchtype=author&query=Jos%C3%A9%2C+T+S">T. San Jos茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.03609v1-abstract-short" style="display: inline;"> The formalism of short-distance factorization, conveyed through the pseudo-distribution approach, connects space-like and light-cone correlators and thus allows for the extraction in lattice QCD of a number of parton distributions. We compute the $t$-dependent parton distribution function of valence quarks in a $畏_{c}$-meson. After reviewing the main ideas behind the pseudo-distribution formalism,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03609v1-abstract-full').style.display = 'inline'; document.getElementById('2409.03609v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.03609v1-abstract-full" style="display: none;"> The formalism of short-distance factorization, conveyed through the pseudo-distribution approach, connects space-like and light-cone correlators and thus allows for the extraction in lattice QCD of a number of parton distributions. We compute the $t$-dependent parton distribution function of valence quarks in a $畏_{c}$-meson. After reviewing the main ideas behind the pseudo-distribution formalism, and relying on the analytic structure of Ioffe-time distributions, we come up with a proposal for a model-independent extraction of $t$-dependent parton distribution functions. We present results for the $畏_{c}$-meson Ioffe time valence $t$-dependent parton distribution function at a renormalization scale of $3~\textrm{GeV}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03609v1-abstract-full').style.display = 'none'; document.getElementById('2409.03609v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 2 figures, contribution to the 31st International Workshop on Deep Inelastic Scattering (DIS2024), 8-12 April 2024, Grenoble, France</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.12361">arXiv:2406.12361</a> <span> [<a href="https://arxiv.org/pdf/2406.12361">pdf</a>, <a href="https://arxiv.org/format/2406.12361">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> The distribution amplitude of the $畏_c$-meson </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mangin-Brinet%2C+M">Mariane Mangin-Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Ch%C3%A1vez%2C+J+M+M">Jos茅 Manuel Morgado Ch谩vez</a>, <a href="/search/hep-lat?searchtype=author&query=Jos%C3%A9%2C+T+S">Teseo San Jos茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.12361v1-abstract-short" style="display: inline;"> In this proceeding we determine the distribution amplitude of the $畏_c$-meson from first principles. This quantity appears as a consequence of factorization theorems, and it is necessary to compute the amplitude of multiple exclusive processes. Since it is defined along a light-cone, its calculation via lattice QCD was impossible until recently, when a generalization to Euclidean metric was propos… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12361v1-abstract-full').style.display = 'inline'; document.getElementById('2406.12361v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.12361v1-abstract-full" style="display: none;"> In this proceeding we determine the distribution amplitude of the $畏_c$-meson from first principles. This quantity appears as a consequence of factorization theorems, and it is necessary to compute the amplitude of multiple exclusive processes. Since it is defined along a light-cone, its calculation via lattice QCD was impossible until recently, when a generalization to Euclidean metric was proposed, and a connection to the physical limit was established. We briefly explain the method of short distance factorization, which allows us to compute the distribution amplitude, and our lattice setup. After summarizing the steps for the continuum and chiral extrapolation, we present our results and compare them to two alternative determinations, one using non-relativistic QCD and another solving the Dyson-Schwinger equations; we find a large discrepancy with the former. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12361v1-abstract-full').style.display = 'none'; document.getElementById('2406.12361v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 3 figures, contribution to the 31st International Workshop on Deep Inelastic Scattering (DIS2024), 8-12 April 2024, Grenoble, France</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.04668">arXiv:2406.04668</a> <span> [<a href="https://arxiv.org/pdf/2406.04668">pdf</a>, <a href="https://arxiv.org/format/2406.04668">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP09(2024)079">10.1007/JHEP09(2024)079 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The distribution amplitude of the $畏_c$-meson at leading twist from Lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mangin-Brinet%2C+M">Mariane Mangin-Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Ch%C3%A1vez%2C+J+M+M">Jos茅 Manuel Morgado Ch谩vez</a>, <a href="/search/hep-lat?searchtype=author&query=Jos%C3%A9%2C+T+S">Teseo San Jos茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.04668v2-abstract-short" style="display: inline;"> Distribution amplitudes are functions of non-perturbative matrix elements describing the hadronization of quarks and gluons. Thanks to factorization theorems, they can be used to compute the scattering amplitude of high-energy processes. Recently, new ideas have allowed their computation using lattice QCD, which should provide us with a general, fully relativistic determination. We present the fir… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.04668v2-abstract-full').style.display = 'inline'; document.getElementById('2406.04668v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.04668v2-abstract-full" style="display: none;"> Distribution amplitudes are functions of non-perturbative matrix elements describing the hadronization of quarks and gluons. Thanks to factorization theorems, they can be used to compute the scattering amplitude of high-energy processes. Recently, new ideas have allowed their computation using lattice QCD, which should provide us with a general, fully relativistic determination. We present the first lattice calculation of the $畏_c$-meson distribution amplitude at leading twist. Starting from the relevant matrix element in discrete Euclidean space on a set of $N_f=2$ CLS ensembles, we explain the method to connect to continuum Minkowski spacetime. After addressing several sources of systematic uncertainty, we compare to Dyson-Schwinger and non-relativistic QCD determinations of this quantity. We find significant deviations between the latter and our result even at small Ioffe times. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.04668v2-abstract-full').style.display = 'none'; document.getElementById('2406.04668v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 8 figures, 4 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP09(2024)079 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.09957">arXiv:2311.09957</a> <span> [<a href="https://arxiv.org/pdf/2311.09957">pdf</a>, <a href="https://arxiv.org/format/2311.09957">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> The distribution amplitude of the $畏_c$ meson </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=P%C3%A9rez%2C+M+T+S+J">Miguel Teseo San Jos茅 P茅rez</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mangin-Brinet%2C+M">Mariane Mangin-Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Ch%C3%A1vez%2C+J+M+M">Jos茅 Manuel Morgado Ch谩vez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.09957v2-abstract-short" style="display: inline;"> We report on the first lattice determination of the pseudoscalar meson $畏_c$ light-cone distribution amplitude, using a set of three CLS $N_f=2$ ensembles at a pion mass $m_蟺 \sim 270~\text{MeV}$ and lattice spacings $a \sim 0.076~\text{fm}$, $0.066~\text{fm}$ and $0.049~\text{fm}$. Employing Short Distance Factorization, we extract the pseudo-DA on the lattice for Ioffe times $谓\leq 4.5$, and the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09957v2-abstract-full').style.display = 'inline'; document.getElementById('2311.09957v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.09957v2-abstract-full" style="display: none;"> We report on the first lattice determination of the pseudoscalar meson $畏_c$ light-cone distribution amplitude, using a set of three CLS $N_f=2$ ensembles at a pion mass $m_蟺 \sim 270~\text{MeV}$ and lattice spacings $a \sim 0.076~\text{fm}$, $0.066~\text{fm}$ and $0.049~\text{fm}$. Employing Short Distance Factorization, we extract the pseudo-DA on the lattice for Ioffe times $谓\leq 4.5$, and the various lattice spacings allow us to take the continuum limit. We employ a basis of Jacobi polynomials to parametrize the distribution amplitude, which allows to express the matching to the pseudo distribution in closed form, and we observe a strong effect which we attribute to the heavy charm-quark mass. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09957v2-abstract-full').style.display = 'none'; document.getElementById('2311.09957v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contribution to the 40th International Symposium on Lattice Field Theory (Lattice 2023), July 31st - August 4th, 2023. Fermi National Accelerator Laboratory</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.11206">arXiv:2212.11206</a> <span> [<a href="https://arxiv.org/pdf/2212.11206">pdf</a>, <a href="https://arxiv.org/format/2212.11206">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Direct access to hadronic decay parameters with twisted boundary conditions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=Neuendorf%2C+J">Jan Neuendorf</a>, <a href="/search/hep-lat?searchtype=author&query=Jos%C3%A9%2C+T+S">Teseo San Jos茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.11206v1-abstract-short" style="display: inline;"> Our exploratory study looks for direct access to the resonant hadronic transition amplitude without resorting to the L眉scher formalism. We study the decay $唯(3770)\to\bar{D}D$ by applying partially twisted boundary conditions to the quenched charm quark, circumventing possible problems with final state interactions. If successful, we could compute the dependence of the transition amplitude on the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.11206v1-abstract-full').style.display = 'inline'; document.getElementById('2212.11206v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.11206v1-abstract-full" style="display: none;"> Our exploratory study looks for direct access to the resonant hadronic transition amplitude without resorting to the L眉scher formalism. We study the decay $唯(3770)\to\bar{D}D$ by applying partially twisted boundary conditions to the quenched charm quark, circumventing possible problems with final state interactions. If successful, we could compute the dependence of the transition amplitude on the charm-quark mass and test the predictions made by phenomenological quark-pair-creation models. Finally, we study if and to what extent an extraction of the excited state $唯(3770)$ is necessary for this analysis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.11206v1-abstract-full').style.display = 'none'; document.getElementById('2212.11206v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.05733">arXiv:2111.05733</a> <span> [<a href="https://arxiv.org/pdf/2111.05733">pdf</a>, <a href="https://arxiv.org/format/2111.05733">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> $B_s \to D^{(*)}_s$ form factors from lattice QCD with ${ N_f}=2$ Wilson-clover quarks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Cahue%2C+P+H">Pierre Henri Cahue</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=La+Cesa%2C+S">Simone La Cesa</a>, <a href="/search/hep-lat?searchtype=author&query=Neuendorf%2C+J">Jan Neuendorf</a>, <a href="/search/hep-lat?searchtype=author&query=Zafeiropoulos%2C+S">Savvas Zafeiropoulos</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.05733v2-abstract-short" style="display: inline;"> 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… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.05733v2-abstract-full').style.display = 'inline'; document.getElementById('2111.05733v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.05733v2-abstract-full" style="display: none;"> 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 $h_{\text A_1}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.05733v2-abstract-full').style.display = 'none'; document.getElementById('2111.05733v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.10061">arXiv:2110.10061</a> <span> [<a href="https://arxiv.org/pdf/2110.10061">pdf</a>, <a href="https://arxiv.org/format/2110.10061">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.054515">10.1103/PhysRevD.105.054515 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Extraction of $B_s \to D^{(*)}_s$ form factors from ${ N_f}=2$ lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Cahue%2C+P">Pierre-Henri Cahue</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=LaCesa%2C+S">Simone LaCesa</a>, <a href="/search/hep-lat?searchtype=author&query=Neuendorf%2C+J">Jan Neuendorf</a>, <a href="/search/hep-lat?searchtype=author&query=Zafeiropoulos%2C+S">Savvas Zafeiropoulos</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.10061v2-abstract-short" style="display: inline;"> We report on a two-flavour lattice QCD study of the $B_s \to D_s$ and $B_s \to D^*_s$ transitions parameterized, in the heavy quark limit, by the form factors ${\cal G}$, and $h_{A_1}$, $h_{A_2}$ and $h_{A_3}$, respectively. In the search for New Physics through tests of lepton flavour universality, $B_s$ decay channels are complementary to the $B$ decays widely studied at $B$ factories and LHCb,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10061v2-abstract-full').style.display = 'inline'; document.getElementById('2110.10061v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.10061v2-abstract-full" style="display: none;"> We report on a two-flavour lattice QCD study of the $B_s \to D_s$ and $B_s \to D^*_s$ transitions parameterized, in the heavy quark limit, by the form factors ${\cal G}$, and $h_{A_1}$, $h_{A_2}$ and $h_{A_3}$, respectively. In the search for New Physics through tests of lepton flavour universality, $B_s$ decay channels are complementary to the $B$ decays widely studied at $B$ factories and LHCb, while on the theory side they can be better controlled than the $B_c$ and $螞_b$ decays. The purpose of this exploratory two-flavour study is, in preparation for future analyses of lattice QCD simulations with ${N_f>2}$ and physical quark-masses, to gain experience on a suitable method for a lattice extraction of form factors associated with $b \to c$ currents that may yield tighter control over systematic effects like contamination from excited states and cut-off effects. We obtain the zero-recoil values ${\cal G}^{B_s \to D_s}(1)=1.03(14)$ and $h^{B_s \to D^*_s}(1)=0.85(16)$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10061v2-abstract-full').style.display = 'none'; document.getElementById('2110.10061v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D, volume 105, issue 5, 03.2022 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.09937">arXiv:1912.09937</a> <span> [<a href="https://arxiv.org/pdf/1912.09937">pdf</a>, <a href="https://arxiv.org/ps/1912.09937">ps</a>, <a href="https://arxiv.org/format/1912.09937">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Decay constant of $B_s$ and $B^*_s$ mesons from ${\rm N_f}=2$ lattice QCD} </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Balasubramanian%2C+R">Rahul Balasubramanian</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.09937v2-abstract-short" style="display: inline;"> We report on a two-flavor lattice QCD estimate of the $B_s$ and $B^*_s$ leptonic decays parameterized by the decay constants $f_{B_s}$ and $f_{B^*_s}$. In addition to their relevance for phenomenology, their extraction has allowed us to investigate whether the "step scaling in mass" strategy is suitable with Wlilson-Clover fermions to smoothly extrapolate quantities of the heavy-strange sector up… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.09937v2-abstract-full').style.display = 'inline'; document.getElementById('1912.09937v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.09937v2-abstract-full" style="display: none;"> We report on a two-flavor lattice QCD estimate of the $B_s$ and $B^*_s$ leptonic decays parameterized by the decay constants $f_{B_s}$ and $f_{B^*_s}$. In addition to their relevance for phenomenology, their extraction has allowed us to investigate whether the "step scaling in mass" strategy is suitable with Wlilson-Clover fermions to smoothly extrapolate quantities of the heavy-strange sector up to the bottom scale. From the central value of $f_{D_s}$ quoted by FLAG at $N_f=2$ and our ratio $\frac{f_{B_s}}{f_{D_s}}$, we obtain $f_{B_s}=215(10)(2)(^{+2}_{-5})$ MeV and $f_{B^*_s}/f_{B_s}=1.02(2)(^{+2}_{-0})$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.09937v2-abstract-full').style.display = 'none'; document.getElementById('1912.09937v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 5 figures; published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J C 80, 412 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.09673">arXiv:1803.09673</a> <span> [<a href="https://arxiv.org/pdf/1803.09673">pdf</a>, <a href="https://arxiv.org/format/1803.09673">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-018-6495-4">10.1140/epjc/s10052-018-6495-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Some hadronic parameters of charmonia in $\boldsymbol{N_{\text{f}}=2}$ lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bailas%2C+G">Gabriela Bailas</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mor%C3%A9nas%2C+V">Vincent Mor茅nas</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1803.09673v1-abstract-short" style="display: inline;"> The phenomenology of leptonic decays of quarkonia holds many interesting features: for instance, it can establish constraints on scenarios beyond the Standard Model with the Higgs sector enriched by a light CP-odd state. In the following paper, we report on a two-flavor lattice QCD study of the $畏_c$ and $J/蠄$ decay constants, $f_{畏_c}$ and $f_{J蠄}$. We also examine some properties of the first ra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.09673v1-abstract-full').style.display = 'inline'; document.getElementById('1803.09673v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.09673v1-abstract-full" style="display: none;"> The phenomenology of leptonic decays of quarkonia holds many interesting features: for instance, it can establish constraints on scenarios beyond the Standard Model with the Higgs sector enriched by a light CP-odd state. In the following paper, we report on a two-flavor lattice QCD study of the $畏_c$ and $J/蠄$ decay constants, $f_{畏_c}$ and $f_{J蠄}$. We also examine some properties of the first radial excitation $畏_c(2S)$ and $蠄(2S)$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.09673v1-abstract-full').style.display = 'none'; document.getElementById('1803.09673v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 67 gigures. arXiv admin note: text overlap with arXiv:1711.05661</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.03065">arXiv:1803.03065</a> <span> [<a href="https://arxiv.org/pdf/1803.03065">pdf</a>, <a href="https://arxiv.org/format/1803.03065">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.98.054506">10.1103/PhysRevD.98.054506 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Leptonic D_s decays in two-flavour lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=Post%2C+M">Matthias Post</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1803.03065v2-abstract-short" style="display: inline;"> We report on a two-flavour lattice QCD study of the D_s and D_s^* leptonic decays parameterized by the decay constants f_{D_s} and f_{D_s^*}. As the phenomenology in the D_s sector seems very promising in the next years with the experiments LHCb and Belle II, it is worth putting a big effort in lattice computations regarding its non-perturbative QCD contributions. Before examining more challenging… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.03065v2-abstract-full').style.display = 'inline'; document.getElementById('1803.03065v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.03065v2-abstract-full" style="display: none;"> We report on a two-flavour lattice QCD study of the D_s and D_s^* leptonic decays parameterized by the decay constants f_{D_s} and f_{D_s^*}. As the phenomenology in the D_s sector seems very promising in the next years with the experiments LHCb and Belle II, it is worth putting a big effort in lattice computations regarding its non-perturbative QCD contributions. Before examining more challenging processes such as hadron-hadron transitions, a natural first step is to address some basic aspects in the context of leptonic decays, where systematic uncertainties from excited state contaminations and cut-off effects in the computation of charmed meson decay matrix elements can be investigated in a more straightforward setting. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.03065v2-abstract-full').style.display = 'none'; document.getElementById('1803.03065v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages including figures and tables, latex2e; version published in Phys. Rev. D; expanded discussion of systematics, small additions to the text and references added; results unchanged</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LPT-Orsay-18-23, MS-TP-18-10 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 98, 054506 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.05661">arXiv:1711.05661</a> <span> [<a href="https://arxiv.org/pdf/1711.05661">pdf</a>, <a href="https://arxiv.org/format/1711.05661">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1051/epjconf/201817513002">10.1051/epjconf/201817513002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> On the $D^*_s$ and charmonia leptonic decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bailas%2C+G">Gabriela Bailas</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=Mor%C3%A9nas%2C+V">Vincent Mor茅nas</a>, <a href="/search/hep-lat?searchtype=author&query=Post%2C+M">Matthias Post</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1711.05661v1-abstract-short" style="display: inline;"> Among the different scenarios of New Physics, those with an extended Higgs sector are examined with a lot of attention. Recent experimental observations of several anomalies in flavour physics with respect to expectations of the Standard Model further motivate the effort of phenomenologists. First, informations about the $R_{D_s}$ ratio, a test of lepton flavour universality equivalent to $R_D$, a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.05661v1-abstract-full').style.display = 'inline'; document.getElementById('1711.05661v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.05661v1-abstract-full" style="display: none;"> Among the different scenarios of New Physics, those with an extended Higgs sector are examined with a lot of attention. Recent experimental observations of several anomalies in flavour physics with respect to expectations of the Standard Model further motivate the effort of phenomenologists. First, informations about the $R_{D_s}$ ratio, a test of lepton flavour universality equivalent to $R_D$, already measured, but with the $s$ quark as spectator, are awaited in coming years to constrain the corner of an extended Higgs sector with charged doublets. On another side, leptonic widths of pseudoscalar quarkonia are particularly interesting to test an extended Higgs sector with a light CP-odd Higgs boson singlet, through the study of its mixing with quarkonia states. Hadronic parameters entering those processes have to be determined from lattice QCD with enough confidence on the control of systematic errors. We report on the very first step of a long-term program tackled with ${\rm N_f}=2$ Wilson-Clover fermions to put relevant constraints on extensions of the Higgs sector: extraction of decay constants of $D^*_s$, $畏_c$, $畏_c(2S)$, $J/蠄$ and $蠄(2S)$ with lattice ensembles provided by the CLS effort, considering 2 lattice spacings and a large range of pion masses to estimate cut-off effects and extrapolate results to the chiral limit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.05661v1-abstract-full').style.display = 'none'; document.getElementById('1711.05661v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 8 figures. Talk given at the 35th International Symposium on Lattice Field Theory, 18-24 June 2017, Granada, Spain</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1611.04421">arXiv:1611.04421</a> <span> [<a href="https://arxiv.org/pdf/1611.04421">pdf</a>, <a href="https://arxiv.org/format/1611.04421">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> On the nature of an excited state </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">Antoine G茅rardin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1611.04421v1-abstract-short" style="display: inline;"> In many lattice simulations with dynamical quarks, radial or orbital excitations of hadrons lie near multihadron thresholds: it makes the extraction of excited states properties more challenging and can introduce some systematics difficult to estimate without an explicit computation of correlators using interpolating fields strongly coupled to multihadronic states. In a recent study of the strong… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1611.04421v1-abstract-full').style.display = 'inline'; document.getElementById('1611.04421v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1611.04421v1-abstract-full" style="display: none;"> In many lattice simulations with dynamical quarks, radial or orbital excitations of hadrons lie near multihadron thresholds: it makes the extraction of excited states properties more challenging and can introduce some systematics difficult to estimate without an explicit computation of correlators using interpolating fields strongly coupled to multihadronic states. In a recent study of the strong decay of the first radial excitation of the $B^*$ meson, this issue has been investigated and we have clues that a diquark interpolating field $\bar{b} 纬^i q$ is very weakly coupled to a $B 蟺$ $P$-wave state while the situation is quite different if we consider an interpolating field of the kind $\bar{b} \nabla^i q$, where $\vec{\nabla}$ is a covariant derivative: those statements are based on examining the charge density distribution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1611.04421v1-abstract-full').style.display = 'none'; document.getElementById('1611.04421v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 November, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Proceedings of the 34th International Symposium on Lattice Field Theory (Lattice 2016), 25 - 30 July 2016, Southampton, Great Britain</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.02891">arXiv:1604.02891</a> <span> [<a href="https://arxiv.org/pdf/1604.02891">pdf</a>, <a href="https://arxiv.org/format/1604.02891">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.94.074504">10.1103/PhysRevD.94.074504 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Density distributions in the $B$ meson </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">Antoine G茅rardin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1604.02891v2-abstract-short" style="display: inline;"> We report on a two-flavor lattice QCD study of the axial, charge and matter distributions of the $B$ meson and its first radial excitation. As our framework is the static limit of Heavy Quark Effective Theory (HQET), taking their Fourier transform gives access to several form factors at the kinematical point $q^2=0$. Moreover they provide some useful information on the nature of an excited state,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.02891v2-abstract-full').style.display = 'inline'; document.getElementById('1604.02891v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.02891v2-abstract-full" style="display: none;"> We report on a two-flavor lattice QCD study of the axial, charge and matter distributions of the $B$ meson and its first radial excitation. As our framework is the static limit of Heavy Quark Effective Theory (HQET), taking their Fourier transform gives access to several form factors at the kinematical point $q^2=0$. Moreover they provide some useful information on the nature of an excited state, i.e. a radial excitation of a quark-antiquark bound state or a multihadron state. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.02891v2-abstract-full').style.display = 'none'; document.getElementById('1604.02891v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 November, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">26 pages, 25 figures, 12 tables; published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 94, 074504 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.03360">arXiv:1505.03360</a> <span> [<a href="https://arxiv.org/pdf/1505.03360">pdf</a>, <a href="https://arxiv.org/format/1505.03360">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.92.054509">10.1103/PhysRevD.92.054509 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> B-meson spectroscopy in HQET at order 1/m </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">Fabio Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">John Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">Michele Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">Patrick Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">Antoine G茅rardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">Georg von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">Hubert Simma</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1505.03360v2-abstract-short" style="display: inline;"> We present a study of the B spectrum performed in the framework of Heavy Quark Effective Theory expanded to next-to-leading order in 1/m and non-perturbative in the strong coupling. Our analyses have been performed on Nf=2 lattice gauge field ensembles corresponding to three different lattice spacings and a wide range of pion masses. We obtain the Bs-meson mass and hyperfine splittings of the B- a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.03360v2-abstract-full').style.display = 'inline'; document.getElementById('1505.03360v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.03360v2-abstract-full" style="display: none;"> We present a study of the B spectrum performed in the framework of Heavy Quark Effective Theory expanded to next-to-leading order in 1/m and non-perturbative in the strong coupling. Our analyses have been performed on Nf=2 lattice gauge field ensembles corresponding to three different lattice spacings and a wide range of pion masses. We obtain the Bs-meson mass and hyperfine splittings of the B- and Bs-mesons that are in good agreement with the experimental values and examine the mass difference m_{Bs}-m_B as a further cross-check of our previous estimate of the b-quark mass. We also report on the mass splitting between the first excited state and the ground state in the B and Bs systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.03360v2-abstract-full').style.display = 'none'; document.getElementById('1505.03360v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">35 pages, 14 tables, 17 figures; Introduction extended and typos corrected. Version accepted for publication in PRD</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CP3-Origins-2015-009 DNRF90, DESY 15-062, DIAS-2015-9, HU-EP-15/16, IFT-UAM/CSIC-15-043, LPT-Orsay/15-31, MITP/15-025, MS-TP-15-07, TCDMATH 15-04 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 92, 054509 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1411.1109">arXiv:1411.1109</a> <span> [<a href="https://arxiv.org/pdf/1411.1109">pdf</a>, <a href="https://arxiv.org/ps/1411.1109">ps</a>, <a href="https://arxiv.org/format/1411.1109">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Renormalization of quark propagator, vertex functions and twist-2 operators from twisted-mass lattice QCD at $N_f$=4 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">Mariane Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Guichon%2C+P">Pierre Guichon</a>, <a href="/search/hep-lat?searchtype=author&query=Mor%C3%A9nas%2C+V">Vincent Mor茅nas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">Olivier P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">Jose Rodr铆guez-Quintero</a>, <a href="/search/hep-lat?searchtype=author&query=Zafeiropoulos%2C+S">Savvas Zafeiropoulos</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1411.1109v2-abstract-short" style="display: inline;"> We present a precise non-perturbative determination of the renormalization constants in the mass independent RI'-MOM scheme. The lattice implementation uses the Iwasaki gauge action and four degenerate dynamical twisted mass fermions. The gauge configurations are provided by the ETM Collaboration. Renormalization constants for scalar, pseudo-scalar, vector and axial operators, as well as the quark… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1411.1109v2-abstract-full').style.display = 'inline'; document.getElementById('1411.1109v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1411.1109v2-abstract-full" style="display: none;"> We present a precise non-perturbative determination of the renormalization constants in the mass independent RI'-MOM scheme. The lattice implementation uses the Iwasaki gauge action and four degenerate dynamical twisted mass fermions. The gauge configurations are provided by the ETM Collaboration. Renormalization constants for scalar, pseudo-scalar, vector and axial operators, as well as the quark propagator renormalization, are computed at three different values of the lattice spacing, two volumes and several twisted mass parameters. The method we developed allows for a precise cross-check of the running, thanks to the particular proper treatment of hypercubic artifacts. Results for the twist-2 operator $O_{44}$ are also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1411.1109v2-abstract-full').style.display = 'none'; document.getElementById('1411.1109v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 November, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 20 figures, submitted to Phys. Rev. D</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1411.0053">arXiv:1411.0053</a> <span> [<a href="https://arxiv.org/pdf/1411.0053">pdf</a>, <a href="https://arxiv.org/format/1411.0053">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Renormalization constants for $N_{\rm f}=2+1+1$ twisted mass QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">Mariane Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Guichon%2C+P">Pierre Guichon</a>, <a href="/search/hep-lat?searchtype=author&query=Mor%C3%A9nas%2C+V">Vincent Mor茅nas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">Olivier P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">Jose Rodr铆guez-Quintero</a>, <a href="/search/hep-lat?searchtype=author&query=Zafeiropoulos%2C+S">Savvas Zafeiropoulos</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1411.0053v2-abstract-short" style="display: inline;"> We summarize recent non-perturbative results obtained for the renormalization constants computed in the RI'-MOM scheme for $N_{\rm f}=2+1+1$ twisted mass QCD. Our implementation employs the Iwasaki gauge action and four dynamical degenerate twisted mass fermions. Renormalization constants for scalar, pseudo-scalar, vector and axial operators, as well as the quark propagator renormalization, are co… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1411.0053v2-abstract-full').style.display = 'inline'; document.getElementById('1411.0053v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1411.0053v2-abstract-full" style="display: none;"> We summarize recent non-perturbative results obtained for the renormalization constants computed in the RI'-MOM scheme for $N_{\rm f}=2+1+1$ twisted mass QCD. Our implementation employs the Iwasaki gauge action and four dynamical degenerate twisted mass fermions. Renormalization constants for scalar, pseudo-scalar, vector and axial operators, as well as the quark propagator renormalization, are computed at three different values of the lattice spacing, two different volumes and several values of the twisted mass. Our method allows for a precise cross-check of the running, because of the particular proper treatment of the hypercubic artifacts. Preliminary results for twist-2 operators are also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1411.0053v2-abstract-full').style.display = 'none'; document.getElementById('1411.0053v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 November, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2014. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.3409">arXiv:1410.3409</a> <span> [<a href="https://arxiv.org/pdf/1410.3409">pdf</a>, <a href="https://arxiv.org/format/1410.3409">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-015-3321-0">10.1140/epjc/s10052-015-3321-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pion couplings to the scalar B meson </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">Antoine G茅rardin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1410.3409v2-abstract-short" style="display: inline;"> We present two-flavor lattice QCD estimates of the hadronic couplings $g_{B^*_0 B 蟺}$ and $g_{B_1^* B_0^* 蟺}$ that parametrise the non leptonic decays $B^*_0 \to B 蟺$ and $B^*_1 \to B_0^* 蟺$. We use CLS two-flavour gauge ensembles. Our framework is the Heavy Quark Effective Theory (HQET) in the static limit and solving a Generalized Eigenvalue Problem (GEVP) reveals crucial to disentangle the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.3409v2-abstract-full').style.display = 'inline'; document.getElementById('1410.3409v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.3409v2-abstract-full" style="display: none;"> We present two-flavor lattice QCD estimates of the hadronic couplings $g_{B^*_0 B 蟺}$ and $g_{B_1^* B_0^* 蟺}$ that parametrise the non leptonic decays $B^*_0 \to B 蟺$ and $B^*_1 \to B_0^* 蟺$. We use CLS two-flavour gauge ensembles. Our framework is the Heavy Quark Effective Theory (HQET) in the static limit and solving a Generalized Eigenvalue Problem (GEVP) reveals crucial to disentangle the $B^*_0$($B^*_1$) state from the $B 蟺$($B^*蟺$) state. This work brings us some experience on how to treat the possible contribution from multihadronic states to correlation functions calculated on the lattice, especially when $S$-wave states are involved. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.3409v2-abstract-full').style.display = 'none'; document.getElementById('1410.3409v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 10 figures, published version</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.0005">arXiv:1405.0005</a> <span> [<a href="https://arxiv.org/pdf/1405.0005">pdf</a>, <a href="https://arxiv.org/format/1405.0005">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> On the first-principles determination of the Standard Model fundamental parameters in the quark sector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1405.0005v1-abstract-short" style="display: inline;"> The 2-years old observation at LHC of a new boson, with a mass of 126 GeV, is a great achievement. Its interpretation as a Brout-Englert-Higgs boson is very plausible and appealing to complete the zoology of fundamental particles in the Standard Model. The interplay between theorists and experimentalists that we have witnessed has come with a huge work to determine with enough precision the parame… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.0005v1-abstract-full').style.display = 'inline'; document.getElementById('1405.0005v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.0005v1-abstract-full" style="display: none;"> The 2-years old observation at LHC of a new boson, with a mass of 126 GeV, is a great achievement. Its interpretation as a Brout-Englert-Higgs boson is very plausible and appealing to complete the zoology of fundamental particles in the Standard Model. The interplay between theorists and experimentalists that we have witnessed has come with a huge work to determine with enough precision the parameters of the Standard Model: couplings, masses, mixing angles. Among the various tools developed by physicists, lattice QCD is particularly suitable to know those parameters in the quark sector. In this report I discuss the lattice measurement of Standard Model fundamental parameters that are closely related to Higgs boson: its main production mode is the gluon-gluon fusion, whose the magnitude is governed by the strong coupling constant, while its most favored decay channel, $H \to b \bar{b}$, has a coupling proportional to the $b$ quark mass. I outline the improvements brought by the lattice community: simulations with $N_f=2+1+1$ dynamical quarks are crucial to study how much the charm quark impacts the strong coupling constant calculation. A non perturbative matching between Heavy Quark Effective Theory and QCD is welcome to handle in an appropriate way the $b$ quark physics. An extensive methodological exploration is necessary to get rid of contribution from excited states in correlation functions computed to extract hadron masses and decay constants. The effort to measure the $u/d$, $s$ and $c$ quark masses is also discussed, illustrating the benefit of using an automatic $O(a)$ improved lattice regularization. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.0005v1-abstract-full').style.display = 'none'; document.getElementById('1405.0005v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">112 pages, habilitation thesis</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.3590">arXiv:1404.3590</a> <span> [<a href="https://arxiv.org/pdf/1404.3590">pdf</a>, <a href="https://arxiv.org/format/1404.3590">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.06.051">10.1016/j.physletb.2014.06.051 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">F. Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">J. Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">M. Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">P. Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">N. Garron</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">A. G茅rardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">J. Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">G. von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">H. Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">R. Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1404.3590v1-abstract-short" style="display: inline;"> We present a computation of B-meson decay constants from lattice QCD simulations within the framework of Heavy Quark Effective Theory for the b-quark. The next-to-leading order corrections in the HQET expansion are included non-perturbatively. Based on Nf=2 gauge field ensembles, covering three lattice spacings a (0.08-0.05)fm and pion masses down to 190MeV, a variational method for extracting had… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.3590v1-abstract-full').style.display = 'inline'; document.getElementById('1404.3590v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.3590v1-abstract-full" style="display: none;"> We present a computation of B-meson decay constants from lattice QCD simulations within the framework of Heavy Quark Effective Theory for the b-quark. The next-to-leading order corrections in the HQET expansion are included non-perturbatively. Based on Nf=2 gauge field ensembles, covering three lattice spacings a (0.08-0.05)fm and pion masses down to 190MeV, a variational method for extracting hadronic matrix elements is used to keep systematic errors under control. In addition we perform a careful autocorrelation analysis in the extrapolation to the continuum and to the physical pion mass limits. Our final results read fB=186(13)MeV, fBs=224(14)MeV and fBs/fB=1.203(65). A comparison with other results in the literature does not reveal a dependence on the number of dynamical quarks, and effects from truncating HQET appear to be negligible. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.3590v1-abstract-full').style.display = 'none'; document.getElementById('1404.3590v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages including figures and tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 14-048, HU-EP-14/14, IFIC/14-24, CP3-Origins-2014-011 DNRF90, DIAS-2014-11, LPT-Orsay/14-19, MITP/14-026, MS-TP-14-18, SFB/CPP-14-20, TCD 14--03 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.3495">arXiv:1312.3495</a> <span> [<a href="https://arxiv.org/pdf/1312.3495">pdf</a>, <a href="https://arxiv.org/format/1312.3495">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> On the $B^{*'}\to B$ transition </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">Antoine G茅rardin</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">John Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Donnellan%2C+M">Michael Donnellan</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1312.3495v1-abstract-short" style="display: inline;"> We present a first $N_{\rm f}=2$ lattice estimate of the hadronic coupling $g_{12}$ which parametrizes the strong decay of a radially excited $B^*$ meson into the ground state $B$ meson at zero recoil. We work in the static limit of Heavy Quark Effective Theory (HQET) and solve a Generalised Eigenvalue Problem (GEVP), which is necessary for the extraction of excited state properties. After an extr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.3495v1-abstract-full').style.display = 'inline'; document.getElementById('1312.3495v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.3495v1-abstract-full" style="display: none;"> We present a first $N_{\rm f}=2$ lattice estimate of the hadronic coupling $g_{12}$ which parametrizes the strong decay of a radially excited $B^*$ meson into the ground state $B$ meson at zero recoil. We work in the static limit of Heavy Quark Effective Theory (HQET) and solve a Generalised Eigenvalue Problem (GEVP), which is necessary for the extraction of excited state properties. After an extrapolation to the continuum limit and a check of the pion mass dependence, we obtain $g_{12} = -0.17(4)$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.3495v1-abstract-full').style.display = 'none'; document.getElementById('1312.3495v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Proceedings of the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LPT-Orsay-13-108 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.2914">arXiv:1312.2914</a> <span> [<a href="https://arxiv.org/pdf/1312.2914">pdf</a>, <a href="https://arxiv.org/format/1312.2914">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Semileptonic $B \to D^{**}$ decays in Lattice QCD : a feasibility study and first results </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Atoui%2C+M">M. Atoui</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Mor%C3%A9nas%2C+V">V. Mor茅nas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1312.2914v3-abstract-short" style="display: inline;"> We compute the decays ${B\to D^\ast_0}$ and ${B\to D^\ast_2}$ with finite masses for the $b$ and $c$ quarks. We first discuss the spectral properties of both the $B$ meson as a function of its momentum and of the $D^\ast_0$ and $D^\ast_2$ at rest. We compute the theoretical formulae leading to the decay amplitudes from the three-point and two-point correlators. We then compute the amplitudes at ze… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.2914v3-abstract-full').style.display = 'inline'; document.getElementById('1312.2914v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.2914v3-abstract-full" style="display: none;"> We compute the decays ${B\to D^\ast_0}$ and ${B\to D^\ast_2}$ with finite masses for the $b$ and $c$ quarks. We first discuss the spectral properties of both the $B$ meson as a function of its momentum and of the $D^\ast_0$ and $D^\ast_2$ at rest. We compute the theoretical formulae leading to the decay amplitudes from the three-point and two-point correlators. We then compute the amplitudes at zero recoil of ${B\to D^\ast_0}$ which turns out not to be vanishing contrary to what happens in the heavy quark limit. This opens a possibility to get a better agreement with experiment. To improve the continuum limit we have added a set of data with smaller lattice spacing. The ${B\to D^\ast_2}$ vanishes at zero recoil and we show a convincing signal but only slightly more than 1 sigma from 0. In order to reach quantitatively significant results, we plan to fully exploit smaller lattice spacings as well as another lattice regularization. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.2914v3-abstract-full').style.display = 'none'; document.getElementById('1312.2914v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">31 pages with 15 figures ; sections 5 and 6 revised and updated</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LPC-Clermont RI 13-07, LPT-Orsay 13-101 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.1514">arXiv:1312.1514</a> <span> [<a href="https://arxiv.org/pdf/1312.1514">pdf</a>, <a href="https://arxiv.org/ps/1312.1514">ps</a>, <a href="https://arxiv.org/format/1312.1514">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.89.034026">10.1103/PhysRevD.89.034026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A novel method for the physical scale setting on the lattice and its application to $N_f$=4 simulations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Mor%C3%A8nas%2C+V">V. Mor猫nas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1312.1514v2-abstract-short" style="display: inline;"> This letter reports on a new procedure for the lattice spacing setting that takes advantage of the very precise determination of the strong coupling in Taylor scheme. Although it can be applied for the physical scale setting with the experimental value of $螞_{\overline{\rm MS}}$ as an input, the procedure is particularly appropriate for relative "calibrations". The method is here applied for simul… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.1514v2-abstract-full').style.display = 'inline'; document.getElementById('1312.1514v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.1514v2-abstract-full" style="display: none;"> This letter reports on a new procedure for the lattice spacing setting that takes advantage of the very precise determination of the strong coupling in Taylor scheme. Although it can be applied for the physical scale setting with the experimental value of $螞_{\overline{\rm MS}}$ as an input, the procedure is particularly appropriate for relative "calibrations". The method is here applied for simulations with four degenerate light quarks in the sea and leads to prove that their physical scale is compatible with the same one for simulations with two light and two heavy flavours. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.1514v2-abstract-full').style.display = 'none'; document.getElementById('1312.1514v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 034026 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.7440">arXiv:1311.7440</a> <span> [<a href="https://arxiv.org/pdf/1311.7440">pdf</a>, <a href="https://arxiv.org/ps/1311.7440">ps</a>, <a href="https://arxiv.org/format/1311.7440">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> B decays to radially excited D </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Becirevic%2C+D">D. Becirevic</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Gerardin%2C+A">A. Gerardin</a>, <a href="/search/hep-lat?searchtype=author&query=Yaouanc%2C+A+L">A. Le Yaouanc</a>, <a href="/search/hep-lat?searchtype=author&query=Sanfilippo%2C+F">F. Sanfilippo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1311.7440v1-abstract-short" style="display: inline;"> We discuss the possibility to measure in present experiments, especially LHCb, the non leptonic decay branching ratio $B \to D' 蟺$, and emphasize phenomenological implications on $B \to D' l 谓$ semileptonic decay. We have estimated by lattice QCD the $D'$ decay constant $f_{D'}$ that parameterizes the $D'$ emission contribution to the Class-III non leptonic decay $B^- \to D^0 蟺^-$. In addition, we… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.7440v1-abstract-full').style.display = 'inline'; document.getElementById('1311.7440v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.7440v1-abstract-full" style="display: none;"> We discuss the possibility to measure in present experiments, especially LHCb, the non leptonic decay branching ratio $B \to D' 蟺$, and emphasize phenomenological implications on $B \to D' l 谓$ semileptonic decay. We have estimated by lattice QCD the $D'$ decay constant $f_{D'}$ that parameterizes the $D'$ emission contribution to the Class-III non leptonic decay $B^- \to D^0 蟺^-$. In addition, we provide a new estimate of the decay constants $f_{D_{s,q}}$ which read $f_{D_{s}}=252(3)$ MeV and $f_{D_{s}}/f_{D}=1.23(1)(1)$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.7440v1-abstract-full').style.display = 'none'; document.getElementById('1311.7440v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 3 figures. Proceedings of the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.5498">arXiv:1311.5498</a> <span> [<a href="https://arxiv.org/pdf/1311.5498">pdf</a>, <a href="https://arxiv.org/format/1311.5498">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.01.046">10.1016/j.physletb.2014.01.046 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The b-quark mass from non-perturbative $N_f=2$ Heavy Quark Effective Theory at $O(1/m_h)$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">F. Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">J. Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">M. Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">P. Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">N. Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Gerardin%2C+A">A. Gerardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">J. Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">G. von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">H. Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">R. Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1311.5498v2-abstract-short" style="display: inline;"> We report our final estimate of the b-quark mass from $N_f=2$ lattice QCD simulations using Heavy Quark Effective Theory non-perturbatively matched to QCD at $O(1/m_h)$. Treating systematic and statistical errors in a conservative manner, we obtain $\overline{m}_{\rm b}^{\overline{\rm MS}}(2 {\rm GeV})=4.88(15)$ GeV after an extrapolation to the physical point. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.5498v2-abstract-full" style="display: none;"> We report our final estimate of the b-quark mass from $N_f=2$ lattice QCD simulations using Heavy Quark Effective Theory non-perturbatively matched to QCD at $O(1/m_h)$. Treating systematic and statistical errors in a conservative manner, we obtain $\overline{m}_{\rm b}^{\overline{\rm MS}}(2 {\rm GeV})=4.88(15)$ GeV after an extrapolation to the physical point. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.5498v2-abstract-full').style.display = 'none'; document.getElementById('1311.5498v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages including figures and tables; as published in Phys.Lett.B / typo in table 4 corrected / footnote 1 expanded</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 13-224, HU-EP-13/66, IFIC/13-82, LPT-Orsay/13-85, MITP/13-066, MS-TP-13-30, SFB/CPP-13-96, TCD-MATH-13-14 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.3763">arXiv:1310.3763</a> <span> [<a href="https://arxiv.org/pdf/1310.3763">pdf</a>, <a href="https://arxiv.org/format/1310.3763">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.89.014507">10.1103/PhysRevD.89.014507 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High statistics determination of the strong coupling constant in Taylor scheme and its OPE Wilson coefficient from lattice QCD with a dynamical charm </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1310.3763v4-abstract-short" style="display: inline;"> This paper reports on the determination of $伪_S$ from lattice simulations with 2+1+1 twisted-mass dynamical flavours {\it via} the computation of the ghost-gluon coupling renormalized in the MOM Taylor scheme. A high-statistics sample of gauge configurations, used to evaluate the coupling from ghost and gluon propagators, allows for the appropriate update of previous results, now performing an imp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.3763v4-abstract-full').style.display = 'inline'; document.getElementById('1310.3763v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.3763v4-abstract-full" style="display: none;"> This paper reports on the determination of $伪_S$ from lattice simulations with 2+1+1 twisted-mass dynamical flavours {\it via} the computation of the ghost-gluon coupling renormalized in the MOM Taylor scheme. A high-statistics sample of gauge configurations, used to evaluate the coupling from ghost and gluon propagators, allows for the appropriate update of previous results, now performing an improved analysis of data with reduced statistical errors and the systematical uncertainties under a better control. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.3763v4-abstract-full').style.display = 'none'; document.getElementById('1310.3763v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 7 figs (final version published in Phys.Rev.D)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 014507 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1309.1074">arXiv:1309.1074</a> <span> [<a href="https://arxiv.org/pdf/1309.1074">pdf</a>, <a href="https://arxiv.org/format/1309.1074">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> B-physics with $N_f=2$ Wilson fermions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">F. Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">J. Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">M. Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">P. Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">N. Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Gerardin%2C+A">A. Gerardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">J. Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">G. von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">H. Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">R. Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1309.1074v1-abstract-short" style="display: inline;"> We report the final results of the ALPHA collaboration for some B-physics observables: $f_B$, $f_{B_s}$ and $m_b$. We employ CLS configurations with 2 flavors of $O(a)$ improved Wilson fermions in the sea and pion masses ranging down to 190 MeV. The b-quark is treated in HQET to order $1/m_b$. The renormalization, the matching and the improvement were performed non-perturbatively, and three lattic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1309.1074v1-abstract-full').style.display = 'inline'; document.getElementById('1309.1074v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1309.1074v1-abstract-full" style="display: none;"> We report the final results of the ALPHA collaboration for some B-physics observables: $f_B$, $f_{B_s}$ and $m_b$. We employ CLS configurations with 2 flavors of $O(a)$ improved Wilson fermions in the sea and pion masses ranging down to 190 MeV. The b-quark is treated in HQET to order $1/m_b$. The renormalization, the matching and the improvement were performed non-perturbatively, and three lattice spacings reaching $a=0.048$ fm are used in the continuum extrapolation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1309.1074v1-abstract-full').style.display = 'none'; document.getElementById('1309.1074v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 September, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.3363">arXiv:1304.3363</a> <span> [<a href="https://arxiv.org/pdf/1304.3363">pdf</a>, <a href="https://arxiv.org/ps/1304.3363">ps</a>, <a href="https://arxiv.org/format/1304.3363">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.87.094518">10.1103/PhysRevD.87.094518 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> On the B*' --> B transition </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">John Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Donnellan%2C+M">Michael Donnellan</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">Antoine G茅rardin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1304.3363v2-abstract-short" style="display: inline;"> We present a first Nf=2 lattice estimate of the hadronic coupling g_12 which parametrises the strong decay of a radially excited B* meson into the ground state B meson at zero recoil. We work in the static limit of Heavy Quark Effective Theory (HQET) and solve a Generalised Eigenvalue Problem (GEVP), which is necessary for the extraction of excited state properties. After an extrapolation to the c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3363v2-abstract-full').style.display = 'inline'; document.getElementById('1304.3363v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.3363v2-abstract-full" style="display: none;"> We present a first Nf=2 lattice estimate of the hadronic coupling g_12 which parametrises the strong decay of a radially excited B* meson into the ground state B meson at zero recoil. We work in the static limit of Heavy Quark Effective Theory (HQET) and solve a Generalised Eigenvalue Problem (GEVP), which is necessary for the extraction of excited state properties. After an extrapolation to the continuum limit and a check of the pion mass dependence, we obtain g_12 = -0.17(4). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3363v2-abstract-full').style.display = 'none'; document.getElementById('1304.3363v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 8 figures, published version</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.3296">arXiv:1304.3296</a> <span> [<a href="https://arxiv.org/pdf/1304.3296">pdf</a>, <a href="https://arxiv.org/format/1304.3296">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Testing OPE for ghosts, gluons and $伪_s$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Philippe Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">Mariane Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+v">vincent Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=Pene%2C+O">Olivier Pene</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">Konstantin Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodriguez-Quinteiro%2C+J">Jose Rodriguez-Quinteiro</a>, <a href="/search/hep-lat?searchtype=author&query=de+Soto%2C+F">Feliciano de Soto</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1304.3296v1-abstract-short" style="display: inline;"> We present here our results on extracting Wilson coefficients from different quantities such as ghost and gluon propagators which are calculated by means of Lattice QCD. The results confirm the validity of our method for the calculation of the strong coupling constant as well as allow to estimate the range of momenta where OPE is applicable. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.3296v1-abstract-full" style="display: none;"> We present here our results on extracting Wilson coefficients from different quantities such as ghost and gluon propagators which are calculated by means of Lattice QCD. The results confirm the validity of our method for the calculation of the strong coupling constant as well as allow to estimate the range of momenta where OPE is applicable. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3296v1-abstract-full').style.display = 'none'; document.getElementById('1304.3296v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax"> arXiv admin note: substantial text overlap with arXiv:1301.7593</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS(Confinement X)043, 2013 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.7336">arXiv:1301.7336</a> <span> [<a href="https://arxiv.org/pdf/1301.7336">pdf</a>, <a href="https://arxiv.org/ps/1301.7336">ps</a>, <a href="https://arxiv.org/format/1301.7336">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysb.2013.04.008">10.1016/j.nuclphysb.2013.04.008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> On the significance of B-decays to radially excited D </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Becirevic%2C+D">Damir Becirevic</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Gerardin%2C+A">Antoine Gerardin</a>, <a href="/search/hep-lat?searchtype=author&query=Yaouanc%2C+A+L">Alain Le Yaouanc</a>, <a href="/search/hep-lat?searchtype=author&query=Sanfilippo%2C+F">Francesco Sanfilippo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1301.7336v3-abstract-short" style="display: inline;"> We discuss the possibilities of testing the recent claims of a relatively large value of the B --> D' transition form factor through B0--> D' pi+ and B- --> D' pi- decay modes. To estimate the width of the latter we need the decay constant of the radially excited D-meson that we computed in lattice QCD with Nf=2 dynamical flavors and after taking the continuum limit we found f(D')=117(25) MeV. We… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.7336v3-abstract-full').style.display = 'inline'; document.getElementById('1301.7336v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.7336v3-abstract-full" style="display: none;"> We discuss the possibilities of testing the recent claims of a relatively large value of the B --> D' transition form factor through B0--> D' pi+ and B- --> D' pi- decay modes. To estimate the width of the latter we need the decay constant of the radially excited D-meson that we computed in lattice QCD with Nf=2 dynamical flavors and after taking the continuum limit we found f(D')=117(25) MeV. We also provide an update for the values of the D-meson decay constants obtained by using maximally twisted mass QCD. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.7336v3-abstract-full').style.display = 'none'; document.getElementById('1301.7336v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages including 5 tables and 3 figures [published version]</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LPT Orsay 13-06 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.6327">arXiv:1211.6327</a> <span> [<a href="https://arxiv.org/pdf/1211.6327">pdf</a>, <a href="https://arxiv.org/format/1211.6327">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> $|V_{ub}|$ determination in lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bahr%2C+F">F. Bahr</a>, <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">F. Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">J. Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">M. Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">P. Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">N. Garron</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">A. G茅rardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">J. Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">G. von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Ramos%2C+A">A. Ramos</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">H. Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">R. Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1211.6327v1-abstract-short" style="display: inline;"> The 2012 PDG reports a tension at the level of $3 蟽$ between two exclusive determinations of $|V_{ub}|$. They are obtained by combining the experimental branching ratios of $B \to 蟿谓$ and $B \to 蟺l 谓$ (respectively) with a theoretical computation of the hadronic matrix elements $\fB$ and the $B \to 蟺$ form factor $f_+(q^2)$. To understand the tension, improved precision and a careful analysis of t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.6327v1-abstract-full').style.display = 'inline'; document.getElementById('1211.6327v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.6327v1-abstract-full" style="display: none;"> The 2012 PDG reports a tension at the level of $3 蟽$ between two exclusive determinations of $|V_{ub}|$. They are obtained by combining the experimental branching ratios of $B \to 蟿谓$ and $B \to 蟺l 谓$ (respectively) with a theoretical computation of the hadronic matrix elements $\fB$ and the $B \to 蟺$ form factor $f_+(q^2)$. To understand the tension, improved precision and a careful analysis of the systematics involved are necessary. We report the results of the ALPHA collaboration for $\fB$ from the lattice with 2 flavors of $O(a)$ improved Wilson fermions. We employ HQET, including $1/m_b$ corrections, with pion masses ranging down to $\approx$ 190 MeV. Renormalization and matching were performed non-perturbatively, and three lattice spacings reaching $a^{-1}\approx 4.1$ GeV are used in the continuum extrapolation. We also present progress towards a computation of $f_+(q^2)$, to directly compare two independent exclusive determinations of $|V_{ub}|$ with each other and with inclusive determinations. Additionally, we report on preliminary results for $\fBq{s}$, needed for the analysis of $B_s \to 渭^+渭^-$.} <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.6327v1-abstract-full').style.display = 'none'; document.getElementById('1211.6327v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2012. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.7932">arXiv:1210.7932</a> <span> [<a href="https://arxiv.org/pdf/1210.7932">pdf</a>, <a href="https://arxiv.org/format/1210.7932">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> B-physics from HQET in two-flavour lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">F. Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">J. Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">M. Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">P. Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">N. Garron</a>, <a href="/search/hep-lat?searchtype=author&query=G%C3%A9rardin%2C+A">A. G茅rardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">J. Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">G. von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">H. Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">R. Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1210.7932v1-abstract-short" style="display: inline;"> We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. With significantly… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.7932v1-abstract-full').style.display = 'inline'; document.getElementById('1210.7932v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.7932v1-abstract-full" style="display: none;"> We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. With significantly increased statistics compared to last year, our preliminary results are mb (mb) = 4.22(10)(4)z GeV for the MS b-quark mass, and fB = 193(9)stat (4)_蠂MeV and fBs = 219(12)stat MeV for the B-meson decay constants. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.7932v1-abstract-full').style.display = 'none'; document.getElementById('1210.7932v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.6524">arXiv:1210.6524</a> <span> [<a href="https://arxiv.org/pdf/1210.6524">pdf</a>, <a href="https://arxiv.org/format/1210.6524">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysbps.2012.12.010">10.1016/j.nuclphysbps.2012.12.010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> B-physics from non-perturbatively renormalized HQET in two-flavour lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Bernardoni%2C+F">Fabio Bernardoni</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">John Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">Michele Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">Patrick Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Gerardin%2C+A">Antoine Gerardin</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G+M">Georg M. von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">Hubert Simma</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1210.6524v1-abstract-short" style="display: inline;"> We report on the ALPHA Collaboration's lattice B-physics programme based on N_f=2 O(a) improved Wilson fermions and HQET, including all NLO effects in the inverse heavy quark mass, as well as non-perturbative renormalization and matching, to fix the parameters of the effective theory. Our simulations in large physical volume cover 3 lattice spacings a ~ (0.08-0.05) fm and pion masses down to 190 M… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.6524v1-abstract-full').style.display = 'inline'; document.getElementById('1210.6524v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.6524v1-abstract-full" style="display: none;"> We report on the ALPHA Collaboration's lattice B-physics programme based on N_f=2 O(a) improved Wilson fermions and HQET, including all NLO effects in the inverse heavy quark mass, as well as non-perturbative renormalization and matching, to fix the parameters of the effective theory. Our simulations in large physical volume cover 3 lattice spacings a ~ (0.08-0.05) fm and pion masses down to 190 MeV to control continuum and chiral extrapolations. We present the status of results for the b-quark mass and the B_(s)-meson decay constants, f_B and f_{B_s}. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.6524v1-abstract-full').style.display = 'none'; document.getElementById('1210.6524v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Presented at the 16th International Conference in Quantum Chromodynamics (QCD 2012), 2-7 July 2012, Montpellier, France; 7 pages including figures, latex2e, uses elsarticle.cls</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MS-TP-12-13; LPT-Orsay/12-101; CERN-PH-TH/2012-256; HU-EP-12/31; TCDMATH 12-08; DESY 12-167; SFB/CPP-12-74 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.1053">arXiv:1210.1053</a> <span> [<a href="https://arxiv.org/pdf/1210.1053">pdf</a>, <a href="https://arxiv.org/ps/1210.1053">ps</a>, <a href="https://arxiv.org/format/1210.1053">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysbps.2012.12.017">10.1016/j.nuclphysbps.2012.12.017 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Lattice measurement of 伪_s with a realistic charm quark </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Du%2C+X">X. Du</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=Pene%2C+O">O. Pene</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodriguez-Quintero%2C+J">J. Rodriguez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1210.1053v2-abstract-short" style="display: inline;"> We report on an estimate of 伪_s, renormalised in the MSbar scheme at the tau and Z^0 mass scales, by means of lattice QCD. Our major improvement compared to previous lattice calculations is that, for the first time, no perturbative treatment at the charm threshold has been required since we have used statistical samples of gluon fields built by incorporating the vacuum polarisation effects of u/d,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.1053v2-abstract-full').style.display = 'inline'; document.getElementById('1210.1053v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.1053v2-abstract-full" style="display: none;"> We report on an estimate of 伪_s, renormalised in the MSbar scheme at the tau and Z^0 mass scales, by means of lattice QCD. Our major improvement compared to previous lattice calculations is that, for the first time, no perturbative treatment at the charm threshold has been required since we have used statistical samples of gluon fields built by incorporating the vacuum polarisation effects of u/d, s and c sea quarks. Extracting 伪_s in the Taylor scheme from the lattice measurement of the ghost-ghost-gluon vertex, we obtain 伪_s^{MSbar}(m^2_Z)=0.1200(14) and 伪_s^{MSbar}(m^2_tau)=0.339(13). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.1053v2-abstract-full').style.display = 'none'; document.getElementById('1210.1053v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Proceedings of the "QCD 12" conference in Montpellier</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1203.6516">arXiv:1203.6516</a> <span> [<a href="https://arxiv.org/pdf/1203.6516">pdf</a>, <a href="https://arxiv.org/format/1203.6516">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP09(2012)132">10.1007/JHEP09(2012)132 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Parameters of Heavy Quark Effective Theory from Nf=2 lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">Michele Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">Patrick Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">Hubert Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">Rainer Sommer</a>, <a href="/search/hep-lat?searchtype=author&query=Tantalo%2C+N">Nazario Tantalo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1203.6516v1-abstract-short" style="display: inline;"> We report on a non-perturbative determination of the parameters of the lattice Heavy Quark Effective Theory (HQET) Lagrangian and of the time component of the heavy-light axial-vector current with Nf=2 flavors of massless dynamical quarks. The effective theory is considered at the 1/mh order, and the heavy mass mh covers a range from slightly above the charm to beyond the beauty region. These HQET… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1203.6516v1-abstract-full').style.display = 'inline'; document.getElementById('1203.6516v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1203.6516v1-abstract-full" style="display: none;"> We report on a non-perturbative determination of the parameters of the lattice Heavy Quark Effective Theory (HQET) Lagrangian and of the time component of the heavy-light axial-vector current with Nf=2 flavors of massless dynamical quarks. The effective theory is considered at the 1/mh order, and the heavy mass mh covers a range from slightly above the charm to beyond the beauty region. These HQET parameters are needed to compute, for example, the b-quark mass, the heavy-light spectrum and decay constants in the static approximation and to order 1/mh in HQET. The determination of the parameters is done non-perturbatively. The computation reported in this paper uses the plaquette gauge action and two different static actions for the heavy quark described by HQET. For the light-quark action we choose non-perturbatively O(a)-improved Wilson fermions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1203.6516v1-abstract-full').style.display = 'none'; document.getElementById('1203.6516v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 March, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 9 figures, 4 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1201.5770">arXiv:1201.5770</a> <span> [<a href="https://arxiv.org/pdf/1201.5770">pdf</a>, <a href="https://arxiv.org/format/1201.5770">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.108.262002">10.1103/PhysRevLett.108.262002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The strong running coupling at $蟿$ and $Z_0$ mass scales from lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Du%2C+X">X. Du</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1201.5770v3-abstract-short" style="display: inline;"> This letter reports on the first computation, from data obtained in lattice QCD with $u,d,s$ and $c$ quarks in the sea, of the running strong coupling via the ghost-gluon coupling renormalized in the MOM Taylor scheme. We provide with estimates of $\ams(m_蟿^2)$ and $\ams(m_Z^2)$ in very good agreement with experimental results. Including a dynamical c quark makes safer the needed running of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1201.5770v3-abstract-full').style.display = 'inline'; document.getElementById('1201.5770v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1201.5770v3-abstract-full" style="display: none;"> This letter reports on the first computation, from data obtained in lattice QCD with $u,d,s$ and $c$ quarks in the sea, of the running strong coupling via the ghost-gluon coupling renormalized in the MOM Taylor scheme. We provide with estimates of $\ams(m_蟿^2)$ and $\ams(m_Z^2)$ in very good agreement with experimental results. Including a dynamical c quark makes safer the needed running of $\ams$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1201.5770v3-abstract-full').style.display = 'none'; document.getElementById('1201.5770v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 January, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 4 figures, 1 table (references updated)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1112.6175">arXiv:1112.6175</a> <span> [<a href="https://arxiv.org/pdf/1112.6175">pdf</a>, <a href="https://arxiv.org/format/1112.6175">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> M_b and f_B from non-perturbatively renormalized HQET with Nf=2 light quarks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Beno卯t Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">John Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">Michele Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Donnellan%2C+M">Michael Donnellan</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">Patrick Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">Georg von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">Hubert Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">Rainer Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1112.6175v1-abstract-short" style="display: inline;"> We present an updated analysis of the non-perturbatively renormalized b-quark mass and B meson decay constant based on CLS lattices with two dynamical non-perturbatively improved Wilson quarks. This update incorporates additional light quark masses and lattice spacings in large physical volume to improve chiral extrapolations and to reach the continuum limit. We use Heavy Quark Effective Theory (H… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.6175v1-abstract-full').style.display = 'inline'; document.getElementById('1112.6175v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1112.6175v1-abstract-full" style="display: none;"> We present an updated analysis of the non-perturbatively renormalized b-quark mass and B meson decay constant based on CLS lattices with two dynamical non-perturbatively improved Wilson quarks. This update incorporates additional light quark masses and lattice spacings in large physical volume to improve chiral extrapolations and to reach the continuum limit. We use Heavy Quark Effective Theory (HQET) including 1/m_b terms with non-perturbative coefficients based on the matching of QCD and HQET developed by the ALPHA collaboration during the past years. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.6175v1-abstract-full').style.display = 'none'; document.getElementById('1112.6175v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 December, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 3 figures. Proceedings of the XXIX International Symposium on Lattice Field Theory - Lattice 2011, July 10-16, 2011, Squaw Valley, Lake Tahoe, California</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-PH-TH/2011-318; DESY 11-251; Edinburgh 2011/40; HU-EP-11/63; LPT Orsay/11-127; MKPH-T-11-26; MS-TP-11-25; SFB/CPP-11-81 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS LATTICE2011:280,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1112.1540">arXiv:1112.1540</a> <span> [<a href="https://arxiv.org/pdf/1112.1540">pdf</a>, <a href="https://arxiv.org/ps/1112.1540">ps</a>, <a href="https://arxiv.org/format/1112.1540">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Renormalisation constants of quark bilinears in lattice QCD with four dynamical Wilson quarks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Carrasco%2C+N">N. Carrasco</a>, <a href="/search/hep-lat?searchtype=author&query=Dimopoulos%2C+P">P. Dimopoulos</a>, <a href="/search/hep-lat?searchtype=author&query=Du%2C+X">X. Du</a>, <a href="/search/hep-lat?searchtype=author&query=Frezzotti%2C+R">R. Frezzotti</a>, <a href="/search/hep-lat?searchtype=author&query=Gimenez%2C+V">V. Gimenez</a>, <a href="/search/hep-lat?searchtype=author&query=Herdoiza%2C+G">G. Herdoiza</a>, <a href="/search/hep-lat?searchtype=author&query=Jansen%2C+K">K. Jansen</a>, <a href="/search/hep-lat?searchtype=author&query=Lubicz%2C+V">V. Lubicz</a>, <a href="/search/hep-lat?searchtype=author&query=Palao%2C+D">D. Palao</a>, <a href="/search/hep-lat?searchtype=author&query=Pallante%2C+E">E. Pallante</a>, <a href="/search/hep-lat?searchtype=author&query=Pene%2C+O">O. Pene</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Reker%2C+S">S. Reker</a>, <a href="/search/hep-lat?searchtype=author&query=Rossi%2C+G+C">G. C. Rossi</a>, <a href="/search/hep-lat?searchtype=author&query=Sanfilippo%2C+F">F. Sanfilippo</a>, <a href="/search/hep-lat?searchtype=author&query=Scorzato%2C+L">L. Scorzato</a>, <a href="/search/hep-lat?searchtype=author&query=Simula%2C+S">S. Simula</a>, <a href="/search/hep-lat?searchtype=author&query=Urbach%2C+C">C. Urbach</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1112.1540v1-abstract-short" style="display: inline;"> We present preliminary results of the non-perturbative computation of the RI-MOM renormalisation constants in a mass-independent scheme for the action with Iwasaki glue and four dynamical Wilson quarks employed by ETMC. Our project requires dedicated gauge ensembles with four degenerate sea quark flavours at three lattice spacings and at several values of the standard and twisted quark mass parame… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.1540v1-abstract-full').style.display = 'inline'; document.getElementById('1112.1540v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1112.1540v1-abstract-full" style="display: none;"> We present preliminary results of the non-perturbative computation of the RI-MOM renormalisation constants in a mass-independent scheme for the action with Iwasaki glue and four dynamical Wilson quarks employed by ETMC. Our project requires dedicated gauge ensembles with four degenerate sea quark flavours at three lattice spacings and at several values of the standard and twisted quark mass parameters. The RI-MOM renormalisation constants are obtained from appropriate O(a) improved estimators extrapolated to the chiral limit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.1540v1-abstract-full').style.display = 'none'; document.getElementById('1112.1540v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 December, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 8 figures, Talk presented at the XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 2011, Squaw Valley, Lake Tahoe, California, USA</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1111.3023">arXiv:1111.3023</a> <span> [<a href="https://arxiv.org/pdf/1111.3023">pdf</a>, <a href="https://arxiv.org/ps/1111.3023">ps</a>, <a href="https://arxiv.org/format/1111.3023">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> RI/MOM renormalization constants (N_f=4) and the strong coupling constant (N_f=2+1+1) from twisted-mass QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Du%2C+X">X. Du</a>, <a href="/search/hep-lat?searchtype=author&query=Gravina%2C+M">M. Gravina</a>, <a href="/search/hep-lat?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1111.3023v1-abstract-short" style="display: inline;"> We study RI/MOM renormalization constants of bilinear quark operators for $N_f=4$ and the strong coupling constant for $N_f=2+1+1$ using Wilson twisted-mass fermions. We use the "egalitarian" method to remove H(4) hypercubic artifacts non-perturbatively, which enables us to study physical quantities in a wide range of momenta. We then apply OPE in studying the running behavior of $Z_q$ and $伪_s$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.3023v1-abstract-full').style.display = 'inline'; document.getElementById('1111.3023v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1111.3023v1-abstract-full" style="display: none;"> We study RI/MOM renormalization constants of bilinear quark operators for $N_f=4$ and the strong coupling constant for $N_f=2+1+1$ using Wilson twisted-mass fermions. We use the "egalitarian" method to remove H(4) hypercubic artifacts non-perturbatively, which enables us to study physical quantities in a wide range of momenta. We then apply OPE in studying the running behavior of $Z_q$ and $伪_s$, from which we are able to extract the Landau gauge dimension-two gluon condensate $<A^2>$ which is of phenomenological interest. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.3023v1-abstract-full').style.display = 'none'; document.getElementById('1111.3023v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, talk presented at The XXIX International Symposium on Lattice Field Theory - Lattice 2011, July 10-16, 2011, Squaw Valley, Lake Tahoe, California</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1110.5829">arXiv:1110.5829</a> <span> [<a href="https://arxiv.org/pdf/1110.5829">pdf</a>, <a href="https://arxiv.org/format/1110.5829">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.85.034503">10.1103/PhysRevD.85.034503 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ghost-gluon coupling, power corrections and $螞_{\bar{\rm MS}}$ from lattice QCD with a dynamical charm </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Du%2C+X">X. Du</a>, <a href="/search/hep-lat?searchtype=author&query=Gravina%2C+M">M. Gravina</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1110.5829v2-abstract-short" style="display: inline;"> This paper is a first report on the determination of $螞_{\msbar}$ from lattice simulations with 2+1+1 twisted-mass dynamical flavours {\it via} the computation of the ghost-gluon coupling renormalized in the MOM Taylor scheme. We show this approach allows a very good control of the lattice artefacts and confirm the picture from previous works with quenched and ${\rm N}_f$=2 twisted-mass field conf… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1110.5829v2-abstract-full').style.display = 'inline'; document.getElementById('1110.5829v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1110.5829v2-abstract-full" style="display: none;"> This paper is a first report on the determination of $螞_{\msbar}$ from lattice simulations with 2+1+1 twisted-mass dynamical flavours {\it via} the computation of the ghost-gluon coupling renormalized in the MOM Taylor scheme. We show this approach allows a very good control of the lattice artefacts and confirm the picture from previous works with quenched and ${\rm N}_f$=2 twisted-mass field configurations which prove the necessity to include non-perturbative power corrections in the description of the running. We provide with an estimate of $螞_{\msbar}$ in very good agreement with experimental results. To our knowledge it is the first calculation with a dynamical charm quark which makes the running up to $伪_s(M_Z)$ much safer. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1110.5829v2-abstract-full').style.display = 'none'; document.getElementById('1110.5829v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 October, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 3 figures, 3 tables (new version accepted to be published in Phys. Rev. D)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1106.2132">arXiv:1106.2132</a> <span> [<a href="https://arxiv.org/pdf/1106.2132">pdf</a>, <a href="https://arxiv.org/ps/1106.2132">ps</a>, <a href="https://arxiv.org/format/1106.2132">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.84.097501">10.1103/PhysRevD.84.097501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Lattice renormalisation of O(a) improved heavy-light operators: an addendum </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1106.2132v3-abstract-short" style="display: inline;"> The analytical expressions and the numerical values of the renormalisation constants of dimension 3 static-light currents are given at one-loop order of perturbation theory in the framework of Heavy Quark Effective Theory and with an improved gauge action: the static quark is described by the HYP-smeared action and the light quark is of Wilson kind. This completes a work started few years ago and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1106.2132v3-abstract-full').style.display = 'inline'; document.getElementById('1106.2132v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1106.2132v3-abstract-full" style="display: none;"> The analytical expressions and the numerical values of the renormalisation constants of dimension 3 static-light currents are given at one-loop order of perturbation theory in the framework of Heavy Quark Effective Theory and with an improved gauge action: the static quark is described by the HYP-smeared action and the light quark is of Wilson kind. This completes a work started few years ago and is actually an intermediate step in the measurement of the decay constants $f_{B}$ and $f_{B_{s}}$ by the European Twisted Mass Collaboration [arXiv:1107.1441[hep-lat]]. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1106.2132v3-abstract-full').style.display = 'none'; document.getElementById('1106.2132v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 February, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 June, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, no figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1102.1535">arXiv:1102.1535</a> <span> [<a href="https://arxiv.org/pdf/1102.1535">pdf</a>, <a href="https://arxiv.org/format/1102.1535">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Vacuum expectation value of A^2 from LQCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Yaouanc%2C+A+L">A. Le Yaouanc</a>, <a href="/search/hep-lat?searchtype=author&query=Leroy%2C+J+P">J. P. Leroy</a>, <a href="/search/hep-lat?searchtype=author&query=Micheli%2C+J">J. Micheli</a>, <a href="/search/hep-lat?searchtype=author&query=Brinet%2C+M">M. Brinet</a>, <a href="/search/hep-lat?searchtype=author&query=Gravina%2C+M">M. Gravina</a>, <a href="/search/hep-lat?searchtype=author&query=De+Soto%2C+F">F. De Soto</a>, <a href="/search/hep-lat?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=Petrov%2C+K">K. Petrov</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1102.1535v1-abstract-short" style="display: inline;"> We argue from LQCD that there is a non vanishing v.e.v of $A_a^渭A^a_渭$ in QCD in the Landau gauge. We use operator product expansion to provide a clear definition of $A_a^渭A^a_渭$ and extract a number both in the quenched and unquenched case. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1102.1535v1-abstract-full" style="display: none;"> We argue from LQCD that there is a non vanishing v.e.v of $A_a^渭A^a_渭$ in QCD in the Landau gauge. We use operator product expansion to provide a clear definition of $A_a^渭A^a_渭$ and extract a number both in the quenched and unquenched case. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1102.1535v1-abstract-full').style.display = 'none'; document.getElementById('1102.1535v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 February, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 5 figures, talk at the workshop "The many faces of QCD", November 2-5, 2010, Gent, Belgium</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LPT-Orsay: 11-12 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS FacesQCD:010,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1101.5800">arXiv:1101.5800</a> <span> [<a href="https://arxiv.org/pdf/1101.5800">pdf</a>, <a href="https://arxiv.org/ps/1101.5800">ps</a>, <a href="https://arxiv.org/format/1101.5800">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1142/S0218271810017858">10.1142/S0218271810017858 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nonperturbative HQET at Order $1/m$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">Georg von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Mendes%2C+T">Tereza Mendes</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1101.5800v1-abstract-short" style="display: inline;"> We summarize first results for masses and decay constants of bottom-strange (pseudo-scalar and vector) mesons from nonperturbatively renormalized heavy-quark effective theory (HQET), using lattice-QCD simulations in the quenched approximation. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1101.5800v1-abstract-full" style="display: none;"> We summarize first results for masses and decay constants of bottom-strange (pseudo-scalar and vector) mesons from nonperturbatively renormalized heavy-quark effective theory (HQET), using lattice-QCD simulations in the quenched approximation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.5800v1-abstract-full').style.display = 'none'; document.getElementById('1101.5800v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 January, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Talk presented at the 4th International Workshop On Astronomy And Relativistic Astrophysics (IWARA), 4-8 Oct 2009, Maresias, Brazil</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Int.J.Mod.Phys.D19:1661-1666,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1101.0518">arXiv:1101.0518</a> <span> [<a href="https://arxiv.org/pdf/1101.0518">pdf</a>, <a href="https://arxiv.org/format/1101.0518">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Light hadrons from Nf=2+1+1 dynamical twisted mass fermions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Baron%2C+R">R. Baron</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">P. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=Carbonell%2C+J">J. Carbonell</a>, <a href="/search/hep-lat?searchtype=author&query=Deuzeman%2C+A">A. Deuzeman</a>, <a href="/search/hep-lat?searchtype=author&query=Drach%2C+V">V. Drach</a>, <a href="/search/hep-lat?searchtype=author&query=Farchioni%2C+F">F. Farchioni</a>, <a href="/search/hep-lat?searchtype=author&query=Gimenez%2C+V">V. Gimenez</a>, <a href="/search/hep-lat?searchtype=author&query=Herdoiza%2C+G">G. Herdoiza</a>, <a href="/search/hep-lat?searchtype=author&query=Jansen%2C+K">K. Jansen</a>, <a href="/search/hep-lat?searchtype=author&query=Michael%2C+C">C. Michael</a>, <a href="/search/hep-lat?searchtype=author&query=Montvay%2C+I">I. Montvay</a>, <a href="/search/hep-lat?searchtype=author&query=Pallante%2C+E">E. Pallante</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Reker%2C+S">S. Reker</a>, <a href="/search/hep-lat?searchtype=author&query=Urbach%2C+C">C. Urbach</a>, <a href="/search/hep-lat?searchtype=author&query=Wagner%2C+M">M. Wagner</a>, <a href="/search/hep-lat?searchtype=author&query=Wenger%2C+U">U. Wenger</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1101.0518v1-abstract-short" style="display: inline;"> We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (Nf=2+1+1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at three values of the lattice spacing a~0.06 fm, a~0.08 fm and a~0.09 fm with lattice sizes ranging from L~1.9 fm to L~3.9 fm. We perform a prel… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.0518v1-abstract-full').style.display = 'inline'; document.getElementById('1101.0518v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1101.0518v1-abstract-full" style="display: none;"> We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (Nf=2+1+1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at three values of the lattice spacing a~0.06 fm, a~0.08 fm and a~0.09 fm with lattice sizes ranging from L~1.9 fm to L~3.9 fm. We perform a preliminary study of SU(2) chiral perturbation theory by combining our lattice data from these three values of the lattice spacing. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.0518v1-abstract-full').style.display = 'none'; document.getElementById('1101.0518v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 January, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 5 figures, talk presented at the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010 Villasimius, Italy</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> HU-EP-10/75, SFB/CPP-10-110, MS-TP-10-22, DESY 10-205 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS LAT2010:123,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.3135">arXiv:1012.3135</a> <span> [<a href="https://arxiv.org/pdf/1012.3135">pdf</a>, <a href="https://arxiv.org/ps/1012.3135">ps</a>, <a href="https://arxiv.org/format/1012.3135">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> $伪_S$ from Lattice QCD: progresses and perspectives for a realistic full-QCD determination of the running Strong coupling </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=De+soto%2C+F">F. De soto</a>, <a href="/search/hep-lat?searchtype=author&query=Gravina%2C+M">M. Gravina</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.3135v1-abstract-short" style="display: inline;"> Some very recent computations of $伪_{\bar{\rm MS}}(M_Z)$ from $N_f=1+1$ lattice simulations and of the running of the Strong coupling, obtained from the lattice ghost-gluon vertex, over a large momentum window are very briefly reviewed. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.3135v1-abstract-full" style="display: none;"> Some very recent computations of $伪_{\bar{\rm MS}}(M_Z)$ from $N_f=1+1$ lattice simulations and of the running of the Strong coupling, obtained from the lattice ghost-gluon vertex, over a large momentum window are very briefly reviewed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.3135v1-abstract-full').style.display = 'none'; document.getElementById('1012.3135v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Oral contribution to the 35th ICHEP; Paris, July 22-28, 2010</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS(ICHEP 2010)372 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.1357">arXiv:1012.1357</a> <span> [<a href="https://arxiv.org/pdf/1012.1357">pdf</a>, <a href="https://arxiv.org/format/1012.1357">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> B meson spectrum and decay constant from Nf=2 simulations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">Benoit Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Bulava%2C+J">John Bulava</a>, <a href="/search/hep-lat?searchtype=author&query=Della+Morte%2C+M">Michele Della Morte</a>, <a href="/search/hep-lat?searchtype=author&query=Donnellan%2C+M">Michael Donnellan</a>, <a href="/search/hep-lat?searchtype=author&query=Fritzsch%2C+P">Patrick Fritzsch</a>, <a href="/search/hep-lat?searchtype=author&query=Garron%2C+N">Nicolas Garron</a>, <a href="/search/hep-lat?searchtype=author&query=Heitger%2C+J">Jochen Heitger</a>, <a href="/search/hep-lat?searchtype=author&query=von+Hippel%2C+G">Georg von Hippel</a>, <a href="/search/hep-lat?searchtype=author&query=Leder%2C+B">Bjorn Leder</a>, <a href="/search/hep-lat?searchtype=author&query=Simma%2C+H">Hubert Simma</a>, <a href="/search/hep-lat?searchtype=author&query=Sommer%2C+R">Rainer Sommer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.1357v2-abstract-short" style="display: inline;"> We report on the status of an ALPHA Collaboration project to extract quantities for B physics phenomenology from Nf=2 lattice simulations. The framework is Heavy Quark Effective Theory (HQET) expanded up to the first order of the inverse b-quark mass. The couplings of the effective theory are determined by imposing matching conditions of observables computed in HQET with their counterpart computed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.1357v2-abstract-full').style.display = 'inline'; document.getElementById('1012.1357v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.1357v2-abstract-full" style="display: none;"> We report on the status of an ALPHA Collaboration project to extract quantities for B physics phenomenology from Nf=2 lattice simulations. The framework is Heavy Quark Effective Theory (HQET) expanded up to the first order of the inverse b-quark mass. The couplings of the effective theory are determined by imposing matching conditions of observables computed in HQET with their counterpart computed in QCD. That program, based on Nf=2 simulations in a small physical volume with SF boundary conditions, is now almost finished. On the other side the analysis of configurations selected from the CLS ensembles, in order to measure HQET hadronic matrix elements, has just started recently so that only results obtained at a single lattice spacing, a=0.07 fm, will be discussed. We give our first results for the b-quark mass and for the B meson decay constant. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.1357v2-abstract-full').style.display = 'none'; document.getElementById('1012.1357v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages 9 figures, for the proceedings of the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Sardinia, Italy. v2 remove obsolete plots</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS Lattice2010:308,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1011.1862">arXiv:1011.1862</a> <span> [<a href="https://arxiv.org/pdf/1011.1862">pdf</a>, <a href="https://arxiv.org/ps/1011.1862">ps</a>, <a href="https://arxiv.org/format/1011.1862">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Quark masses with Nf=2 twisted mass lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Dimopoulos%2C+P">P. Dimopoulos</a>, <a href="/search/hep-lat?searchtype=author&query=Frezzotti%2C+R">R. Frezzotti</a>, <a href="/search/hep-lat?searchtype=author&query=Lubicz%2C+V">V. Lubicz</a>, <a href="/search/hep-lat?searchtype=author&query=Petschlies%2C+M">M. Petschlies</a>, <a href="/search/hep-lat?searchtype=author&query=Rossi%2C+G+C">G. C. Rossi</a>, <a href="/search/hep-lat?searchtype=author&query=Sanfilippo%2C+F">F. Sanfilippo</a>, <a href="/search/hep-lat?searchtype=author&query=Simula%2C+S">S. Simula</a>, <a href="/search/hep-lat?searchtype=author&query=Tarantino%2C+C">C. Tarantino</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1011.1862v1-abstract-short" style="display: inline;"> We present the results of the recent high precision lattice calculation of the average up/down, strange and charm quark masses performed by ETMC with Nf=2 twisted mass Wilson fermions. The analysis includes data at four values of the lattice spacing and pion masses as low as ~270 MeV, allowing for accurate continuum limit and chiral extrapolation. The strange and charm masses are extracted by usin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.1862v1-abstract-full').style.display = 'inline'; document.getElementById('1011.1862v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1011.1862v1-abstract-full" style="display: none;"> We present the results of the recent high precision lattice calculation of the average up/down, strange and charm quark masses performed by ETMC with Nf=2 twisted mass Wilson fermions. The analysis includes data at four values of the lattice spacing and pion masses as low as ~270 MeV, allowing for accurate continuum limit and chiral extrapolation. The strange and charm masses are extracted by using several methods, based on different observables: the kaon and the eta_s meson for the strange quark and the D, D_s and eta_c mesons for the charm. The quark mass renormalization is carried out non-perturbatively using the RI-MOM method. The results for the quark masses in the MSbar scheme read: m_ud(2 GeV)= 3.6(2) MeV, m_s(2 GeV)=95(6) MeV and m_c(m_c)=1.28(4) GeV. We have also obtained the ratios m_s/m_ud=27.3(9) and m_c/m_s=12.0(3). Moreover, we provide the updated result for the bottom quark mass, m_b(m_b)=4.3(2) GeV, obtained using the method presented in 0909.3187 [hep-lat]. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.1862v1-abstract-full').style.display = 'none'; document.getElementById('1011.1862v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 November, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 7 figures, talk given at the XXVIII International Symposium on Lattice Field Theory (Lattice 2010), June 14-19 2010, Villasimius, Italy</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> PoS(Lattice 2010)239 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS Lattice2010:239,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1010.5724">arXiv:1010.5724</a> <span> [<a href="https://arxiv.org/pdf/1010.5724">pdf</a>, <a href="https://arxiv.org/ps/1010.5724">ps</a>, <a href="https://arxiv.org/format/1010.5724">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Ghost-gluon coupling, power corrections and $螞_{\bar{MS}}$ from twisted-mass lattice QCD at $N_f=2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Boucaud%2C+P">Ph. Boucaud</a>, <a href="/search/hep-lat?searchtype=author&query=De+soto%2C+F">F. De soto</a>, <a href="/search/hep-lat?searchtype=author&query=Morenas%2C+V">V. Morenas</a>, <a href="/search/hep-lat?searchtype=author&query=Gravina%2C+M">M. Gravina</a>, <a href="/search/hep-lat?searchtype=author&query=P%C3%A8ne%2C+O">O. P猫ne</a>, <a href="/search/hep-lat?searchtype=author&query=Rodr%C3%ADguez-Quintero%2C+J">J. Rodr铆guez-Quintero</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1010.5724v1-abstract-short" style="display: inline;"> A non-perturbative calculation of the ghost-gluon running QCD coupling constant is performed using $N_f=2$ twisted-mass dynamical fermions. The extraction of $螞_{\bar{MS}}$ in the chiral limit reveals the presence of a non-perturbative OPE contribution that is assumed to be dominated by a dimension-two $\VEV{A^2}$ condensate. In this contest a novel method for calibrating the lattice spacing in la… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.5724v1-abstract-full').style.display = 'inline'; document.getElementById('1010.5724v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1010.5724v1-abstract-full" style="display: none;"> A non-perturbative calculation of the ghost-gluon running QCD coupling constant is performed using $N_f=2$ twisted-mass dynamical fermions. The extraction of $螞_{\bar{MS}}$ in the chiral limit reveals the presence of a non-perturbative OPE contribution that is assumed to be dominated by a dimension-two $\VEV{A^2}$ condensate. In this contest a novel method for calibrating the lattice spacing in lattice simulations is presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.5724v1-abstract-full').style.display = 'none'; document.getElementById('1010.5724v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 October, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures, XXVIII International Symposium on Lattice Field Theory 2010</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1010.3659">arXiv:1010.3659</a> <span> [<a href="https://arxiv.org/pdf/1010.3659">pdf</a>, <a href="https://arxiv.org/ps/1010.3659">ps</a>, <a href="https://arxiv.org/format/1010.3659">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.82.114513">10.1103/PhysRevD.82.114513 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Average up/down, strange and charm quark masses with Nf=2 twisted mass lattice QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-lat?searchtype=author&query=ETM+Collaboration"> ETM Collaboration</a>, <a href="/search/hep-lat?searchtype=author&query=Blossier%2C+B">B. Blossier</a>, <a href="/search/hep-lat?searchtype=author&query=Dimopoulos%2C+P">P. Dimopoulos</a>, <a href="/search/hep-lat?searchtype=author&query=Frezzotti%2C+R">R. Frezzotti</a>, <a href="/search/hep-lat?searchtype=author&query=Lubicz%2C+V">V. Lubicz</a>, <a href="/search/hep-lat?searchtype=author&query=Petschlies%2C+M">M. Petschlies</a>, <a href="/search/hep-lat?searchtype=author&query=Sanfilippo%2C+F">F. Sanfilippo</a>, <a href="/search/hep-lat?searchtype=author&query=Simula%2C+S">S. Simula</a>, <a href="/search/hep-lat?searchtype=author&query=Tarantino%2C+C">C. Tarantino</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1010.3659v2-abstract-short" style="display: inline;"> We present a high precision lattice calculation of the average up/down, strange and charm quark masses performed with Nf=2 twisted mass Wilson fermions. The analysis includes data at four values of the lattice spacing and pion masses as low as ~270 MeV, allowing for accurate continuum limit and chiral extrapolation. The strange and charm masses are extracted by using several methods, based on diff… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.3659v2-abstract-full').style.display = 'inline'; document.getElementById('1010.3659v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1010.3659v2-abstract-full" style="display: none;"> We present a high precision lattice calculation of the average up/down, strange and charm quark masses performed with Nf=2 twisted mass Wilson fermions. The analysis includes data at four values of the lattice spacing and pion masses as low as ~270 MeV, allowing for accurate continuum limit and chiral extrapolation. The strange and charm masses are extracted by using several methods, based on different observables: the kaon and the eta_s meson for the strange quark and the D, D_s and eta_c mesons for the charm. The quark mass renormalization is carried out non-perturbatively using the RI-MOM method. The results for the quark masses in the MSbar scheme read: m_ud(2 GeV)= 3.6(2) MeV, m_s(2 GeV)=95(6) MeV and m_c(m_c)=1.28(4) GeV. We also obtain the ratios m_s/m_ud=27.3(9) and m_c/m_s=12.0(3). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.3659v2-abstract-full').style.display = 'none'; document.getElementById('1010.3659v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 January, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 October, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 5 figures. Typos corrected in eqs. (15)-(17). Version published in Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D82:114513,2010 </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Blossier%2C+B&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Blossier%2C+B&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Blossier%2C+B&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div 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