Quark masses and strong coupling constant in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math>flavor QCD

Maezawa, Y.; Petreczky, Péter

doi:10.1103/physrevd.94.034507

Cited by 52 publications

(114 citation statements)

References 42 publications

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“…Our result also agrees very well with those from lattice simulations based on the pseudo-scalar current [19], domain-wall fermions [20], and staggered quarks [21]. In summary, we used a physically motivated continuum ansatz that reproduces the experimental data, both the normalisation and -non-trivially and very importantly -the moment dependence, with a single adjustable parameter.…”

Section: Discussionsupporting

confidence: 81%

Charm Quark Mass with Calibrated Uncertainty

Erler

Masjuan

Spiesberger

2018

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017)

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We determine the charm quark massm c (m c ) from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD. Only experimental data for the charm resonances below the continuum threshold are needed in our approach, while the continuum contribution is determined by requiring self-consistency between various sum rules, including the one for the zeroth moment. Existing data from the continuum region can then be used to bound the theoretical error. Our result ism c (m c ) = 1272 ± 8 MeV forα s (M Z ) = 0.1182. Special attention is given to the question how to quantify and justify the uncertainty.

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Section: Discussionsupporting

confidence: 81%

Charm Quark Mass with Calibrated Uncertainty

Erler

Masjuan

Spiesberger

2018

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017)

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“…The threshold effect at the The previous results are separately shown for different number of sea quarks. HPQCD 14 [3], ETM a 14 [38] and ETM b 14 [39] for n f = 2 + 1 + 1, Maezawa et al 16 [40], HPQCD 10 [2], HPQCD 08 [1], and χQCD 14 [41] for n f = 2+1, and ALPHA 13 [42], ETM a 11 [43], and ETM b 11 [44] for n f = 2.…”

Section: Discussionmentioning

confidence: 99%

Short-distance charmonium correlator on the lattice with Möbius domain-wall fermion and a determination of charm quark mass

2016

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We calculate charmonium correlators on the lattice with 2+1-flavors of sea quarks and charm valence quark both described by the Möbius domain-wall fermion. Temporal moments of the correlators are calculated and matched to perturbative QCD formulae to extract the charm quark mass m c (µ) and strong coupling constant α s (µ). Lattice data at three lattice spacings, 0.044, 0.055, and 0.080 fm, are extrapolated to the continuum limit. The correlators in the vector channel are confirmed to be consistent with the experimental data for e + e − → cc, while the pseudo-scalar channel is used to extract m c (µ) and α s (µ). We obtain m c (3 GeV) = 1.003(10) GeV and α MS(4) s (3 GeV) = 0.253(13). Dominant source of the error is the truncation of perturbative expansion at α 3

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“…Finally, Ref. [44] used the Highly Improved Staggered Quark action and moments of the pseudoscalar-charmonium correlator, and foundm c (m c ) = 1.267(11) GeV andα s (M z ) = 0.1162(75). These results are displayed in Fig.…”

Section: Comparison With Previous Workmentioning

confidence: 99%

Charm quark mass with calibrated uncertainty

2017

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We determine the charm quark massm c from QCD sum rules of the moments of the vector current correlator calculated in perturbative QCD at O(α 3 s ). Only experimental data for the charm resonances below the continuum threshold are needed in our approach, while the continuum contribution is determined by requiring self-consistency between various sum rules, including the one for the zeroth moment. Existing data from the continuum region can then be used to bound the theoretic uncertainty. Our result iŝ m c (m c ) = 1272 ± 8 MeV forα s (M Z ) = 0.1182, where the central value is in very good agreement with other recent determinations based on the relativistic sum rule approach. On the other hand, there is considerably less agreement regarding the theory dominated uncertainty and we pay special attention to the question how to quantify and justify it.

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Quark masses and strong coupling constant in2+1flavor QCD

Cited by 52 publications

References 42 publications

Charm Quark Mass with Calibrated Uncertainty

Charm Quark Mass with Calibrated Uncertainty

Short-distance charmonium correlator on the lattice with Möbius domain-wall fermion and a determination of charm quark mass

Charm quark mass with calibrated uncertainty

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