Quark masses using twisted-mass fermion gauge ensembles

Alexandrou, Constantia; Bacchio, Simone; Bergner, Georg; Constantinou, Martha; Carlo, Matteo Di; Dimopoulos, P.; Finkenrath, Jacob; Fiorenza, E.; Frezzotti, R.; Garofalo, Marco; Hadjiyiannakou, Kyriakos; Kostrzewa, Bartosz; Koutsou, Giannis; Jansen, Karl; Mangin-Brinet, M.; Manigrasso, Floriano; Martinelli, G.; Papadiofantous, E.; Pittler, Ferenc; Rossi, G.C.; Sanfilippo, Francesco; Simula, Silvano; Tarantino, Cecilia; Todaro, Antonino; Urbach, Carsten; Wenger, Urs

doi:10.1103/physrevd.104.074515

Cited by 39 publications

(24 citation statements)

References 45 publications

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“…The lattice gauge field configurations used in this work were generated by the ETM collaboration (ETMC) [13] and employ N f = 2 + 1 + 1 twisted mass fermions with degenerate light quarks leading to a pion mass of 260 MeV and a dynamical strange and charm quark with masses close to the physical ones. The lattice has 32 3 × 64 sites and a lattice spacing of a ≈ 0.093 fm.…”

Section: The Methods and Lattice Setupmentioning

confidence: 99%

Twist-3 partonic distributions from lattice QCD

Bhattacharya

Cichy

Constantinou

et al. 2022

SciPost Phys. Proc.

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Twist-3 partonic distributions contain important information that characterizes nucleon’s structure. In this work, we show our lattice exploration of the twist-3 PDFs g_T(x)gT(x), and h_L(x)hL(x). We also present our preliminary results on the twist-3 GPD \tilde{G}_2(x)G̃2(x). We use the quasi-distribution approach to connect the lattice-extracted matrix elements, renormalized in the RI/MOM scheme, to light-cone distributions, applying the matching procedure that we developed in parallel. We also calculate the twist-2 counterparts of g_T(x)gT(x) and h_L(x)hL(x), i.e. g_1(x)g1(x), and h_1(x)h1(x), and test the Wandzura-Wilczek approximation.

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Section: The Methods and Lattice Setupmentioning

confidence: 99%

Twist-3 partonic distributions from lattice QCD

Bhattacharya

Cichy

Constantinou

et al. 2022

SciPost Phys. Proc.

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“…There are now several different strategies for determining quark mass -among these are approaches based on moments of current-current correlators [249,250], the implementation of momentum subtraction schemes on the lattice [251,252], spectroscopy of heavy meson masses and HQET [253,254], nonperturbative HQET determinations [255] and computations involving step-scaling in small volume [256,257]. These methods, though all relying crucially on lattice simulation, differ substantially in approach and are hence subject to differing sources of systematic uncertainty.…”

Section: B and C Quark Massesmentioning

confidence: 99%

A lattice QCD perspective on weak decays of b and c quarks Snowmass 2022 White Paper

Boyle¹

2022

Preprint

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“…We use a gauge ensemble of maximally twisted mass fermions [28] with two degenerate light, a strange and a charm quark (N f = 2 + 1 + 1), with pion mass M π = 260 MeV, lattice spacing a 0.093 fm and volume V = 32 3 × 64. The matrix elements of Eq.…”

Section: Lattice Setup and Matrix Elementsmentioning

confidence: 99%

Proton generalized parton distributions from lattice QCD

Scapellato

Alexandrou

Cichy

et al. 2022

Supl. Rev. Mex. Fis.

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Momentum and spatial distributions of quarks and gluons inside hadrons are typically encoded in the so-called generalized parton distributions (GPDs). GPDs are multi-dimensional quantities that are very challenging to extract, both experimentally and within lattice QCD. We present the first lattice results on the x-dependence of isovector unpolarized, helicity and transversity GPDs of the proton, obtained from lattice QCD using an ensemble of Nf = 2 + 1 + 1 maximally twisted mass fermions, with pion mass Mπ = 260 MeV and lattice spacing a ' 0.093 fm. Our calculations use the quasi-distribution formalism and the final distributions are presented in the MS scheme at a renormalization scale of 2 GeV.

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Quark masses using twisted-mass fermion gauge ensembles

Cited by 39 publications

References 45 publications

Twist-3 partonic distributions from lattice QCD

Twist-3 partonic distributions from lattice QCD

A lattice QCD perspective on weak decays of b and c quarks Snowmass 2022 White Paper

Proton generalized parton distributions from lattice QCD

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