Quark mass dependence of hadron masses from lattice QCD

Foster, Matthew S.; Michael, Christopher

doi:10.1103/physrevd.59.074503

Cited by 89 publications

(64 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[66,67]. In correlators where the charm quark is involved, Gaussian smeared interpolating quark fields [68] are used in order to suppress the contribution of excited states.…”

Section: Simulation Detailsmentioning

confidence: 99%

ΔS=2andΔC=2bag parameters in the standard model and beyond from
Carrasco¹,
Dimopoulos²,
Frezzotti³
et al. 2015
Phys. Rev. D
90
15
123
0
View full text Add to dashboard Cite

We present unquenched lattice QCD results for the matrix elements of four-fermion operators relevant to the description of the neutral K and D mixing in the Standard Model and its extensions. We have employed simulations with N f = 2+1+1 dynamical sea quarks at three values of the lattice spacings in the interval 0.06 -0.09 fm and pseudoscalar meson masses in the range 210 -450 MeV. Our results are extrapolated to the continuum limit and to the physical pion mass. Renormalization constants have been determined non-perturbatively in the RI-MOM scheme. In particular, for the Kaon bag-parameter, which is relevant for the K 0 − K 0 mixing in the Standard Model, we obtain B RGI K = 0.717(24).

show abstract

“…[66,67]. In correlators where the charm quark is involved, Gaussian smeared interpolating quark fields [68] are used in order to suppress the contribution of excited states.…”

Section: Simulation Detailsmentioning

confidence: 99%

ΔS=2andΔC=2bag parameters in the standard model and beyond from
Carrasco¹,
Dimopoulos²,
Frezzotti³
et al. 2015
Phys. Rev. D
90
15
123
0
View full text Add to dashboard Cite

show abstract

“…Stochastic sources, η (j) , are not only an essential tool for the evaluation of disconnected diagrams, but can also be very useful in the calculation of connected contributions to hadron correlators, using the so-called "one-end-trick" [FM99]. For the two-point function Eq.…”

Section: "One-end-trick"mentioning

confidence: 99%

Hadron structure from lattice quantum chromodynamics

2010

View full text Add to dashboard Cite

This is a review of hadron structure physics from lattice QCD. Throughout this report, we place emphasis on the contribution of lattice results to our understanding of a number of fundamental physics questions related to, e.g., the origin and distribution of the charge, magnetization, momentum and spin of hadrons. Following an introduction to some of the most important hadron structure observables, we summarize the methods and techniques employed for their calculation in lattice QCD. We briefly discuss the status of relevant chiral perturbation theory calculations needed for controlled extrapolations of the lattice results to the physical point. In the main part of this report, we give an overview of lattice calculations on hadron form factors, moments of (generalized) parton distributions, moments of hadron distribution amplitudes, and other important hadron structure observables. Whenever applicable, we compare with results from experiment and phenomenology, taking into account systematic uncertainties in the lattice computations. Finally, we discuss promising results based on new approaches, ideas and techniques, and close with remarks on future perspectives of the field.

show abstract

“…We will compute the neutral pion mass from the connected and disconnected pieces of the corresponding correlation function using the stochastic noise source method of refs. [16,17] for the disconnected diagrams. In quenched studies, the disconnected contributions to flavour singlet correlators are known to be pathological -having a double pole structure.…”

Section: Introductionmentioning

confidence: 99%

Flavour breaking effects of Wilson twisted mass fermions

et al. 2005

Self Cite

View full text Add to dashboard Cite

We study the flavour breaking effects appearing in the Wilson twisted mass formulation of lattice QCD. In this quenched study, we focus on the mass splitting between the neutral and the charged pion, determining the neutral pion mass with a stochastic noise method to evaluate the disconnected contributions. We find that these disconnected contributions are significant. Using the Osterwalder-Seiler interpretation of the connected piece of the neutral pion correlator, we compute the corresponding neutral pion mass to study with more precision the scaling behaviour of the mass splitting.

show abstract

Quark mass dependence of hadron masses from lattice QCD

Cited by 89 publications

References 18 publications

ΔS=2andΔC=2bag parameters in the standard model and beyond from
Carrasco¹,
Dimopoulos²,
Frezzotti³
et al. 2015
Phys. Rev. D
90
15
123
0
View full text Add to dashboard Cite

ΔS=2andΔC=2bag parameters in the standard model and beyond from
Carrasco¹,
Dimopoulos²,
Frezzotti³
et al. 2015
Phys. Rev. D
90
15
123
0
View full text Add to dashboard Cite

Hadron structure from lattice quantum chromodynamics

Flavour breaking effects of Wilson twisted mass fermions

Contact Info

Product

Resources

About

Quark mass dependence of hadron masses from lattice QCD

Cited by 89 publications

References 18 publications

ΔS=2andΔC=2bag parameters in the standard model and beyond fromCarrasco1, Dimopoulos2, Frezzotti3 et al. 2015Phys. Rev. D90151230View full textAdd to dashboardCite

ΔS=2andΔC=2bag parameters in the standard model and beyond fromCarrasco1, Dimopoulos2, Frezzotti3 et al. 2015Phys. Rev. D90151230View full textAdd to dashboardCite

Hadron structure from lattice quantum chromodynamics

Flavour breaking effects of Wilson twisted mass fermions

Contact Info

Product

Resources

About

ΔS=2andΔC=2bag parameters in the standard model and beyond from
Carrasco¹,
Dimopoulos²,
Frezzotti³
et al. 2015
Phys. Rev. D
90
15
123
0
View full text Add to dashboard Cite

ΔS=2andΔC=2bag parameters in the standard model and beyond from
Carrasco¹,
Dimopoulos²,
Frezzotti³
et al. 2015
Phys. Rev. D
90
15
123
0
View full text Add to dashboard Cite