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Now showing items 1-34 of 1

Title: Lattice QCD at the physical point: Simulation and analysis details: Budapest-Marseille-Wuppertal collaboration

Author: ; ; ; ; ; ; ; ; ;

Date: 2011

Submitted: 2020-04-07

(2011)

We give details of our precise determination of the light quark masses mud = (mu+md)/2 and ms in 2+1 flavor QCD, with simulated pion masses down to 120MeV, at five lattice spacings, and in large volumes. The details concern ...

Title: Lattice QCD at the physical point: light quark masses

Author: ; ; ; ; ; ; ; ; ;

Date: 2011

Submitted: 2020-04-07

(2011)

Title: QCD thermodynamics with dynamical overlap fermions

Author: ; ; ; ; ; ; ; ;

Date: 2012

Submitted: 2020-04-07

(2012)

We study QCD thermodynamics using two flavors of dynamical overlap fermions with quark masses corresponding to a pion mass of 350 MeV. We determine several observables on N-t = 6 and 8 lattices. All our runs are performed ...

Title: Isospin Splittings in the Light-Baryon Octet from Lattice QCD and QED

Author: ; ; ; ; ; ; ; ; ; ; Portelli, A; Ramos, A; Sastre, A; Szabo, K

Date: 2013

Submitted: 2020-04-07

(2013)

While electromagnetic and up-down quark mass difference effects on octet baryon masses are very small, they have important consequences. The stability of the hydrogen atom against beta decay is a prominent example. Here, ...

Title: Freeze-Out Parameters from Electric Charge and Baryon Number Fluctuations: Is There Consistency?

Author: ; ; ; ; ;

Date: 2014

Submitted: 2020-04-07

(2014)

Recent results for moments of multiplicity distributions of net protons and net-electric charge from the STAR Collaboration are compared to lattice QCD results for higher order fluctuations of baryon number and electric ...

Title: The QCD equation of state with dynamical quarks

Author: ; ; ; ; ; ; ;

Date: 2010

Submitted: 2020-04-07

(2010)

The present paper concludes our investigation on the QCD equation of state with 2 + 1 staggered flavors and one-link stout improvement. We extend our previous study [JHEP 01 (2006) 089] by choosing even finer lattices. ...

Title: QCD thermodynamics with continuum extrapolated Wilson fermions I

Author: ; ; ; ; ; ; ; ; ;

Date: 2012

Submitted: 2020-04-07

(2012)

QCD thermodynamics is considered using Wilson fermions in the fixed scale approach. The temperature dependence of the renormalized chiral condensate, quark number susceptibility and Polyakov loop is measured at four lattice ...

Title: Ratio F-K/F-pi in QCD

Author: ; ; ; ; ; ; ; ; ;

Date: 2010

Submitted: 2020-04-07

(2010)

We determine the ratio F-K/ F-pi in QCD with N-f =2 + 1 flavors of sea quarks, based on a series of lattice calculations with three different lattice spacings, large volumes, and a simulated pion mass reaching down to about ...

Title: High-precision scale setting in lattice QCD

Author: ; ; ; ; ; ; ; ; ; ; Szabo, KK

Date: 2012

Submitted: 2020-04-07

(2012)

Scale setting is of central importance in lattice QCD. It is required to predict dimensional quantities in physical units. Moreover, it determines the relative lattice spacings of computations performed at different values ...

Title: Freeze-out parameters: Lattice meets experiment

Author: ; ; ; ; ;

Date: 2013

Submitted: 2020-04-07

(2013)

We present our results for ratios of higher order fluctuations of electric charge as functions of the temperature. These results are obtained in a system of 2+1 quark flavors at physical quark masses and continuum extrapolated. ...

Title: Is there still any T-c mystery in lattice QCD? Results with physical masses in the continuum limit III

Author: ; ; ; ; ; ;

Date: 2010

Submitted: 2020-04-07

(2010)

The present paper concludes our investigations on the QCD cross-over transition temperatures with 2+1 staggered flavours and one-link stout improvement. We extend our previous two studies [Phys. Lett. B643 (2006) 46, JHEP ...

Title: The QCD transition temperature: results with physical masses in the continuum limit II

Author: ; ; ; ; ; ;

Date: 2009

Submitted: 2020-04-07

(2009)

We extend our previous study [Phys. Lett. B 643 (2006) 46] of the cross-over temperatures (T-c) of QCD. We improve our zero temperature analysis by using physical quark masses and finer lattices. In addition to the kaon ...

Title: Precision computation of the kaon bag parameter

Author: ; ; ; ; ; ; ; ; ; ; Szabo, KK

Date: 2011

Submitted: 2020-04-07

(2011)

Title: Up and Down Quark Masses and Corrections to Dashen's Theorem from Lattice QCD and Quenched QED

Author: ; ; ; ; ; ; ; ;

Date: 2016

Submitted: 2020-04-07

(2016)

In a previous Letter [Borsanyi et al., Phys. Rev. Lett. 111, 252001 (2013)] we determined the isospin mass splittings of the baryon octet from a lattice calculation based on N-f = 2 + 1 QCD simulations to which QED effects ...

Title: QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order mu(2)

Author: ; ; ; ; ; ;

Date: 2012

Submitted: 2020-04-07

(2012)

We determine the equation of state of QCD for nonzero chemical potentials via a Taylor expansion of the pressure. The results are obtained for N-f = 2 + 1 flavors of quarks with physical masses, on various lattice spacings. ...

Title: Scaling study for 2 HEX smeared fermions: hadron and quark masses

Author: ; ; ; ; ; ; ; ; ;

Date: 2010

Submitted: 2020-08-11

(2010)

Title: Rho decay width from the lattice

Author: ; ; ; ; ; ; ; ; ; ; Ramos, A; Szabo, KK

Date: 2010

Submitted: 2020-08-11

(2010)

Title: Electromagnetic corrections to light hadron masses

Author: ; ; ; ; ; ; ; ; ; ; Ramos, A; Szabo, KK

Date: 2010

Submitted: 2020-08-11

(2010)

Title: QCD transition temperature: full staggered result

Author: ; ; ; ; ; ;

Date: 2010

Submitted: 2020-08-11

(2010)

We conclude our investigations on the QCD cross-over transition temperatures with 2+1 staggered flavours and one-link stout improvement. We extend our previous two studies [Phys. Lett. B643 (2006) 46, JHEP 0906:088 (2009)] ...

Title: SU(2) chiral perturbation theory low-energy constants from 2+1 flavor staggered lattice simulations

Author: ; ; ; ; ; ;

Date: 2013

Submitted: 2020-08-11

(2013)

We extract the next-to-leading-order low-energy constants ℓ̄3 and ℓ̄4 of SU(2) chiral perturbation theory, based on precise lattice data for the pion mass and decay constant on ensembles generated by the Wuppertal-Budapest ...

Title: Sigma term and strangeness content of the nucleon

Author: ; ; ; ; ; ; ; ; ; ; Portelli, A; Ramos, A; Schafer, A; Szabo, KK

Date: 2010

Submitted: 2020-08-11

(2010)

Title: Recent results on QCD thermodynamics: lattice QCD versus Hadron Resonance Gas model

Author: ; ; ; ; ; ;

Date: 2011

Submitted: 2020-08-11

(2011)

Title: Full result for the QCD equation of state with 2 +/- 1 flavors

Author: ; ; ; ; ;

Date: 2014

Submitted: 2020-04-07

(2014)

We present a full result for the 2 + 1 flavor QCD equation of state. All the systematics are controlled, the quark masses are set to their physical values, and the continuum extrapolation is carried out. This extends our ...

Title: Chiral behavior of pseudo-Goldstone boson masses and decay constants in 2+1 flavor QCD

Author: ; ; ; ; ; ; ; ; ;

Date: 2007

Submitted: 2020-08-11

(2007)

Title: Mixed action simulations: Approaching physical quark masses

Author: ; ; ; ; ; ; ; ; ;

Date: 2007

Submitted: 2020-08-11

(2007)

Title: Scaling study of dynamical smeared-link clover fermions

Author: ; ; ; ; ; ; ; ; ; ; Vulvert, G

Date: 2009

Submitted: 2020-08-11

(2009)

We present a framework for phenomenological lattice QCD calculations which makes use of a tree-evel Symanzink improved action for gluons and stout-link Wilson fermions. We give details of our efficient HMC/RHMC algorithm ...

Title: Ab Initio Determination of Light Hadron Masses

Author: ; ; ; ; ; ; ; ; ; ; Szabo, KK; Vulvert, G

Date: 2008

Submitted: 2020-08-11

(2008)

More than 99% of the mass of the visible universe is made up of protons and neutrons. Both particles are much heavier than their quark and gluon constituents, and the Standard Model of particle physics should explain this ...

Title: SU(2) chiral perturbation theory low-energy constants from staggered 2+1 flavor simulations

Author: ; ; ; ; ; ; ;

Date: 2011

Submitted: 2020-08-11

(2011)

We extract the NLO low-energy constants \bar\ell_3 and \bar\ell_4 of SU(2) chiral perturbation theory, based on precise lattice data for the pion mass and decay constant on ensembles generated by the Wuppertal-Budapest ...

Title: The finite temperature QCD transition in external magnetic fields

Author: ; ; ; ; ; ; ;

Date: 2011

Submitted: 2020-08-11

(2011)

The effect of an external magnetic field on the finite temperature transition of QCD is studied. We measure thermodynamic observables including the quark condensates and susceptibilities and the strange quark number ...

Title: Fluctuations of conserved charges at finite temperature from lattice QCD

Author: ; ; ; ; ;

Date: 2012

Submitted: 2020-08-11

(2012)

We present the full results of the Wuppertal-Budapest lattice QCD collaboration on flavor diagonal and non-diagonal quark number susceptibilities with 2 + 1 staggered quark flavors, in a temperature range between 125 and ...

Title: Thermodynamic properties of QCD in external magnetic fields

Author: ; ; ; ; ; ; ; ; ; ; Szabo, K K

Date: 2012

Submitted: 2020-08-11

(2012)

We consider the effect of strong external electromagnetic fields on thermodynamic observables in QCD, through lattice simulations with 1+1+1 flavors of staggered quarks at physical quark masses. Continuum extrapolated ...

Title: Freeze-out parameters from continuum extrapolated lattice data

Author: ; ; ; ; ;

Date: 2014

Submitted: 2020-08-10

(2014)

We present continuum extrapolated lattice results for the higher order fluctuations of conserved charges in high temperature Quantum Chromodynamics. Through the matching of the grand canonical ensemble on the lattice to ...

Title: Continuum EoS for QCD with N_f=2+1 flavors

Author: ; ; ; ;

Date: 2014

Submitted: 2020-08-10

(2014)

We report on a continuum extrapolated result [arXiv:1309.5258] for the equation of state (EoS) of QCD with $N_f=2+1$ dynamical quark flavors. In this study, all systematics are controlled, quark masses are set to their ...

Title: QCD thermodynamics with continuum extrapolated dynamical overlap fermions

Author: ; ; ; ; ; ; ; ;

Date: 2015

Submitted: 2020-08-10

(2015)

We study the finite temperature transition in QCD with two flavors of dynamical fermions at a pseudoscalar pion mass of about 350 MeV. We use lattices with temporal extent of $N_t$=8, 10 and 12. For the first time in the ...