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Heavy-quark physics with a tmQCD valence action

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Andrea Bussone, Sergio Chaves, Gregorio Herdoíza, Carlos Pena, David Preti, José Ángel Romero, Javier Ugarrio

High Energy Physics - Lattice · Submitted 4 Dec 2018

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We show that for maximally twisted valence quarks, the automatic O$(a)$-improvement of this set-up holds up to lattice artifacts coming from sea quark mass effects.

how it is stated · asserted 1.00 read the record →

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arXiv ID1812.01474 (version 1)
Pith IDBKOHGLEY, Pith's permanent record of this paper and its review
CitationAndrea Bussone, Carlos Pena, David Preti, Gregorio Herdo\'iza, Javier Ugarrio, Jos\'e \'Angel Romero, Sergio Chaves. "Heavy-quark physics with a tmQCD valence action." arXiv:1812.01474 (2018). https://pith.science/paper/BKOHGLEY
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,030 input tokens.

What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.89 · human participants 0.01 · controlled comparison 0.07 · randomized assignment 0.02 · states quantitative result 0.05 · compares with prior results 0.11 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

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 valence quarks, the automatic O$(a)$-improvement of this set-up holds up to lattice artifacts coming from sea quark mass effects. Furthermore, we introduce a three-dimensional Gradient Flow smearing in order to tame the signal to noise ratio problem.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 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. contribution 0.52 0.90 0.08 asserted 1.00
s1 We show that for maximally twisted valence quarks, the automatic O$(a)$-improvement of this set-up holds up to lattice artifacts coming from sea quark mass effects. result 0.97 0.93 0.41 asserted 1.00
s2 Furthermore, we introduce a three-dimensional Gradient Flow smearing in order to tame the signal to noise ratio problem. method 0.78 0.92 0.06 asserted 0.99

What kind of paper the classifier reports this is: method or tool 0.92 · evidence from simulation or computation 0.97.

What was examined, and what was not

sources read
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not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
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  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

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 valence quarks, the automatic O$(a)$-improvement of this set-up holds up to lattice artifacts coming from sea quark mass effects. Furthermore, we introduce a three-dimensional Gradient Flow smearing in order to tame the signal to noise ratio problem.

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How the literature uses it

7 arXiv papers cite this in 12 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 9 sentences without a confident label

Uses its method or tool 2 papers
  • Our approach employs CLS ensembles [ref] with open boundary conditions in the time directions, combined with a Wilson twisted mass action in the valence sector to compute $O(a)$-improved observables without improvement coefficients [ref] .

    Towards precision charm physics with a mixed action · Introduction · 0.81

  • Valence fermions are fully twisted [ref] , with three flavours tuned at twisted angle $α=π/2$ and the fourth one at $α=-π/2$.

    $\chi$SF near the electroweak scale · Physical determinations · 0.83

Cites it as background 1 paper

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