Explanipedia

Non-perturbative renormalisation and improvement of non-singlet tensor currents in Nf = 3 QCD Open

Leonardo Chimirri, Patrick Fritzsch, Jochen Heitger, Fabian Joswig, Marco Panero , et al. · 2024

Hadronic physics from a Wilson fermion mixed-action approach: charm quark mass and $$D_{(s)}$$ meson decay constants Open

Andrea Bussone, Alessandro Conigli, Julien Frison, Gregorio Herdoíza, Carlos Peña , et al. · 2024

Hadronic physics from a Wilson fermion mixed-action approach: charm quark mass and $D_{(s)}$ meson decay constants Open

Andrea Bussone, Alessandro Conigli, Julien Frison, Gregorio Herdoíza, Carlos Pena , et al. · 2024

We present our first set of results for charm physics, using the mixed-action setup introduced in a companion paper [1]. Maximally twisted Wilson valence fermions are used on a sea of non-perturbatively O(a)-improved Wilson fermions, made …

Non-perturbative renormalisation and improvement of non-singlet tensor currents in $N_\mathrm{f}=3$ QCD Open

Leonardo Chimirri, Patrick Fritzsch, Jochen Heitger, Fabian Joswig, Marco Panero , et al. · 2023

Hadronic matrix elements involving tensor currents play an important rôle in decays that allow to probe the consistency of the Standard Model via precision lattice QCD calculations. The non-singlet tensor current is a scale-dependent (anom…

Light meson physics and scale setting from a mixed action with Wilson twisted mass valence quarks Open

Gregorio Herdoíza, Andrea Bussone, Alessandro Conigli, Julien Frison, Carlos Pena , et al. · 2022

We consider a mixed action approach where valence Wilson twisted mass (Wtm) fermions at maximal twist are combined with CLS ensembles consisting of $N_f$=2+1 flavours of O($a$)-improved Wilson sea quarks. We present an update of the result…

Charm physics with a tmQCD mixed action Open

Alessandro Conigli, Andrea Bussone, Julien Frison, Gregorio Herdoíza, Carlos Peña , et al. · 2022

We report on our ongoing determination of the charm quark mass and the masses and decay constants of various charmed mesons, obtained within a mixed-action setup. We employ $N_f=2+1$ CLS ensembles combined with a Wilson twisted mass valenc…

Calculation of the running coupling in non-Abelian gauge theories from Jarzynski's equality Open

Marco Panero, Olmo Francesconi, David Preti · 2022

We discuss the theoretical foundations of non-equilibrium Monte Carlo simulations based on Jarzynski's equality and present, as an example of application, the determination of the running coupling in the Schrödinger-functional scheme.

Calculation of the running coupling in non-Abelian gauge theories from Jarzynski's equality Open

Olmo Francesconi, Marco Panero, David Preti · 2021

We discuss the theoretical foundations of non-equilibrium Monte Carlo simulations based on Jarzynski's equality and present, as an example of application, the determination of the running coupling in the Schrödinger-functional scheme.

Non-perturbative renormalization of O($a$) improved tensor currents Open

Fabian Joswig, Leonardo Chimirri, Patrick Fritzsch, Jochen Heitger, Marco Panero , et al. · 2020

We present our progress in the non-perturbative O(a) improvement and renormalization of tensor currents in three-flavor lattice QCD with Wilson-clover fermions and tree-level Symanzik improved gauge action. The mass-independent O(a) improv…

Non-perturbative renormalization of $O(a)$ improved tensor currents Open

Leonardo Chimirri, Patrick Fritzsch, Jochen Heitger, Fabian Joswig, Marco Panero , et al. · 2020

We present our progress in the non-perturbative $O(a)$ improvement and renormalization of tensor currents in three-flavor lattice QCD with Wilson-clover fermions and tree-level Symanzik improved gauge action. The mass-independent $O(a)$ im…

Strong dynamics with matter in multiple representations: $$\mathrm {SU}(4)$$ gauge theory with fundamental and sextet fermions Open

Guido Cossu, Luigi Del Debbio, Marco Panero, David Preti · 2019

Light and strange quark masses for $N_f = 2 + 1$ simulations with Wilson fermions Open

J. Koponen, Mattia Bruno, Isabel Campos, Carlos Peña, David Preti , et al. · 2019

We present a preliminary analysis of the $u/d$ and $s$ quark masses, extracted using the PCAC quark masses reported in PRD 95 (2017) 074504. The data is based on the CLS $N_f = 2 + 1$ simulations with Wilson/Clover quarks and Lüscher-Weisz…

Heavy-quark physics with a tmQCD valence action Open

Andrea Bussone, Sergio Chaves, Gregorio Herdoíza, Carlos Pena, David Preti , et al. · 2019

We introduce a mixed-action approach based on CLS ensembles, where a valence $N_f$=2+1+1 Twisted Mass QCD action is combined with the $N_f$=2+1 non-perturbatively O$(a)$-improved Wilson sea sector. We show that for maximally twisted valenc…

Matching of $N_f=2+1$ CLS ensembles to a tmQCD valence sector Open

José Ángel Romero, Andrea Bussone, Gregorio Herdoíza, Carlos Peña, David Preti , et al. · 2019

A mixed action composed of valence quark flavours regularized with a fully-twisted tmQCD action and of $N_f=2+1$ flavours of non-perturbatively ${\rm O}(a)$-improved Wilson sea quarks is described. Two procedures for the matching of sea an…

First results for charm physics with a tmQCD valence action Open

Javier Ugarrio, Andrea Bussone, Gregorio Herdoíza, Carlos Peña, David Preti , et al. · 2019

We present preliminary results in the charm sector from a mixed-action setup, in which CLS $N_f=2+1$ ensembles are combined with a Wilson twisted mass valence action. We study the continuum and chiral limits of charm quark observables such…

Light and strange quark masses from $N_f=2+1$ simulations with Wilson fermions Open

Mattia Bruno, Isabel Campos, J. Koponen, C. Peña, David Preti , et al. · 2019

We present a nearly final analysis of the $u/d$ and $s$ quark masses, extracted using the PCAC quark masses reported in [PRD 95 (2017) 074504]. The data is based on the CLS $N_f = 2 + 1$ simulations with Wilson/Clover quarks and Lüscher-We…

Matching of $N_f=2+1$ CLS ensembles to a tmQCD valence sector Open

Andrea Bussone, Gregorio Herdoíza, Carlos Peña, David Preti, José Ángel Romero , et al. · 2019

A mixed action composed of valence quark flavours regularized with a fully-twisted tmQCD action and of $N_f=2+1$ flavours of non-perturbatively ${\rm O}(a)$-improved Wilson sea quarks is described. Two procedures for the matching of sea an…

First results for charm physics with a tmQCD valence action Open

Andrea Bussone, Gregorio Herdoíza, Carlos Pena, David Preti, José Ángel Romero , et al. · 2018

We present preliminary results in the charm sector from a mixed-action setup, in which CLS $N_f=2+1$ ensembles are combined with a Wilson twisted mass valence action. We study the continuum and chiral limits of charm quark observables such…

Erratum to: On the perturbative renormalization of four-quark operators for new physics Open

Mauro Papinutto, Carlos Pena, David Preti · 2018

\n This erratum concerns the correction of some typographic errors appearing in the second and third sections of the article. The errors do not affect any of the results presented.\n

On the perturbative renormalization of four-quark operators for new physics Open

Mauro Papinutto, Carlos Pena, David Preti · 2017

Controlling quark mass determinations non-perturbatively in three-flavour QCD Open

Isabel Campos, Patrick Fritzsch, Carlos Pena, David Preti, Alberto Ramos , et al. · 2017

\nThe determination of quark masses from lattice QCD simulations requires a non-perturbative renormalization procedure and subsequent scale evolution to high energies, where a conversion to the commonly used $\\overline {{\\rm{MS}}} $ sche…

Non-perturbative running of quark masses in three-flavour QCD Open

David Preti, Isabel Campos, Patrick Fritzsch, Carlos Pena, Alberto Ramos , et al. · 2016

We present our preliminary results for the computation of the non-perturbative running of renormalized quark masses in $N_f = 3$ QCD, between the electroweak and hadronic scales, using standard finite-size scaling techniques. The computati…

On the perturbative renormalisation of four-quark operators for new physics Open

Mauro Papinutto, Carlos Pena, David Preti · 2016

We discuss the renormalisation properties of the full set of $ΔF=2$ operators involved in BSM processes, including the definition of RGI versions of operators that exhibit mixing under RG transformations. As a first step for a fully non-pe…

On the perturbative renormalisation of four-quark operators for new\n physics Open

Mauro Papinutto, Carlos Pena, David Preti · 2016

We discuss the renormalisation properties of the full set of $\\Delta F=2$\noperators involved in BSM processes, including the definition of RGI versions\nof operators that exhibit mixing under RG transformations. As a first step for\na fu…

Non-perturbative running of quark masses in three-flavour QCD Open

Isabel Campos, Patrick Fritzsch, Carlos Pena, David Preti, Alberto Ramos , et al. · 2016

We present our preliminary results for the computation of the non-perturbative running of renormalized quark masses in $N_f = 3$ QCD, between the electroweak and hadronic scales, using standard finite-size scaling techniques. The computati…

Prospects and status of quark mass renormalization in three-flavour QCD Open

Patrick Fritzsch, Isabel Campos, Alberto Ramos, Carlos Peña, David Preti , et al. · 2016

We present the current status of a revised strategy to compute the running of renormalized quark masses in QCD with three flavours of massless O(a) improved Wilson quarks. The strategy employed uses the standard finite-size scaling method …

Non-perturbative renormalization of tensor bilinears in Schrodinger Functional schemes Open

David Preti, Carlos Peña, Patrick Fritzsch · 2016

We present preliminary result for the study of the renormalization group evolution of tensor bilinears in Schrödinger Functional (SF) schemes for N f = 0 and N f = 2 QCD with non-perturbatively O(a)-improved Wilson fermions.First N f = 2 +…

Non-perturbative renormalization of tensor bilinears in Schrödinger Functional schemes Open

Patrick Fritzsch, Carlos Pena, David Preti · 2015

We present preliminary result for the study of the renormalization group evolution of tensor bilinears in Schrödinger Functional (SF) schemes for $N_f=0$ and $N_f=2$ QCD with non-perturbatively $\mathcal{O}(a)$-improved Wilson fermions. Fi…

Non-perturbative renormalization of tensor bilinears in Schr\\"odinger\n Functional schemes Open

Patrick Fritzsch, Carlos Peña, David Preti · 2015

We present preliminary result for the study of the renormalization group\nevolution of tensor bilinears in Schr\\"odinger Functional (SF) schemes for\n$N_f=0$ and $N_f=2$ QCD with non-perturbatively $\\mathcal{O}(a)$-improved\nWilson fermi…

Prospects and status of quark mass renormalization in three-flavour QCD Open

Isabel Campos, Patrick Fritzsch, Carlos Peña, David Preti, Alberto Ramos , et al. · 2015

We present the current status of a revised strategy to compute the running of renormalized quark masses in QCD with three flavours of massless O(a) improved Wilson quarks. The strategy employed uses the standard finite-size scaling method …

David Preti YOU? Author Swipe