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Showing 2016 · hep-latShow all

22 papers · 2 filters

hep-lat2016★ 77 cited

Non-equilibrium study of the Chiral Magnetic Effect from real-time simulations with dynamical fermions

Mark Mace, Niklas Mueller, Sören Schlichting +1

We present a real-time lattice approach to study the non-equilibrium dynamics of vector and axial charges in gauge theories. Based on a classical description of…

hep-lat2016★ 1 cited

Kaon semileptonic decays with HISQ fermions and physical light-quark masses

E. Gamiz, A. Bazavov, C. Bernard +17

We discuss the reduction of errors in the calculation of the form factor with HISQ fermions on the MILC configurations from increased statistics on some…

hep-lat2016★ 15 cited

Lattice QCD results on cumulant ratios at freeze-out

Frithjof Karsch

Ratios of cumulants of net proton-number fluctuations measured by the STAR Collaboration show strong deviations from a skellam distribution, which should describe thermal propertie…

hep-lat2016★ 82 cited

form factors and decay rates from lattice QCD with physical quark masses

Stefan Meinel

The first lattice QCD calculation of the form factors governing decays is reported. The calculation was performed with two different lattice spacings and i…

hep-lat2016★ 2 cited

Nucleon structure from 2+1-flavor dynamical DWF ensembles

Michael Abramczyk, Meifeng Lin, Andrew Lytle +1

Nucleon isovector vector- and axialvector-current form factors, the renormalized isovector transversity and scalar charge, and the bare quark momentum and helicity moments of isove…

hep-lat2016★ 100 cited

Connected and leading disconnected hadronic light-by-light contribution to the muon anomalous magnetic moment with physical pion mass

Thomas Blum, Norman Christ, Masashi Hayakawa +4

We report a lattice QCD calculation of the hadronic light-by-light contribution to the muon anomalous magnetic moment at physical pion mass. The calculation includes the connected…

hep-lat2016★ 96 cited

Light flavor-singlet scalars and walking signals in QCD on the lattice

Yasumichi Aoki, Tatsumi Aoyama, Ed Bennett +9

Based on the highly improved staggered quark action, we perform lattice simulations of QCD and confirm our previous observation of a flavor-singlet scalar meson (denoted as…

hep-lat2016★ 95 cited

Proton-proton fusion and tritium -decay from lattice quantum chromodynamics

Martin J. Savage, Phiala E. Shanahan, Brian C. Tiburzi +7

The nuclear matrix element determining the fusion cross section and the Gamow-Teller matrix element contributing to tritium -decay are calculated with lattice Qu…

hep-lat2016★ 46 cited

Practical quasi parton distribution functions

Tomomi Ishikawa, Yan-Qing Ma, Jian-Wei Qiu +1

A completely new strategy to calculate parton distribution functions on the lattice has recently been proposed. In this method, lattice calculable observables, called quasi distrib…

hep-lat2016★ 32 cited

Octet Baryon Magnetic Moments from Lattice QCD: Approaching Experiment from a Three-Flavor Symmetric Point

Assumpta Parreno, Martin J. Savage, Brian C. Tiburzi +4

Lattice QCD calculations with background magnetic fields are used to determine the magnetic moments of the octet baryons. Computations are performed at the physical value of the st…

hep-lat2016★ 186 cited

Setting the scale for the CLS flavor ensembles

Mattia Bruno, Tomasz Korzec, Stefan Schaefer

We present measurements of a combination of the decay constants of the light pseudoscalar mesons and the gradient flow scale , which allow to set the scale of the lattices gen…

hep-lat2016★ 41 cited

Quark masses and strong coupling constant in 2+1 flavor QCD

Y. Maezawa, P. Petreczky

We present a determination of the strange, charm and bottom quark masses as well as the strong coupling constant in 2+1 flavor lattice QCD simulations using highly improved stagger…

hep-lat2016★ 194 cited

The topological susceptibility in finite temperature QCD and axion cosmology

Peter Petreczky, Hans-Peter Schadler, Sayantan Sharma

We study the topological susceptibility in 2+1 flavor QCD above the chiral crossover transition temperature using Highly Improved Staggered Quark action and several lattice spacing…

hep-lat2016★ 19 cited

Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory

T. A. DeGrand, M. Golterman, W. I. Jay +3

We develop methods to calculate the electroweak gauge boson contribution to the effective Higgs potential in the context of composite Higgs models, using lattice gauge theory. The…

hep-lat2016★ 119 cited

Polyakov loop in 2+1 flavor QCD from low to high temperatures

A. Bazavov, N. Brambilla, H. -T. Ding +4

We study the free energy of a static quark in QCD with 2+1 flavors in a wide temperature region, 116 MeV 5814 MeV, using the highly improved staggered quark (HISQ) action.…

hep-lat2016★ 14 cited

The topological structures in strongly coupled QGP with chiral fermions on the lattice

Sayantan Sharma, Viktor Dick, Frithjof Karsch +2

The nature of chiral phase transition for two flavor QCD is an interesting but unresolved problem. One of the most intriguing issues is whether or not the anomalous U(1) symmetry i…

hep-lat2016

S-parameter and vector decay constant in QCD with eight fundamental fermions

LatKMI collaboration, Yasumichi Aoki, Tatsumi Aoyama +10

SU(3) gauge theory with eight massless fundamental fermions seems to be near the conformal boundary, and is a candidate theory of walking technicolor. Along the series of study by…

hep-lat2016★ 186 cited

-mixing matrix elements from lattice QCD for the Standard Model and beyond

A. Bazavov, C. Bernard, C. M. Bouchard +17

We calculate---for the first time in three-flavor lattice QCD---the hadronic matrix elements of all five local operators that contribute to neutral - and -meson mixing in…

hep-lat2016★ 33 cited

Lattice calculation of the leading strange quark-connected contribution to the muon

T. Blum, P. A. Boyle, L. Del Debbio +9

We present results for the leading hadronic contribution to the muon anomalous magnetic moment due to strange quark-connected vacuum polarisation effects. Simulations were performe…

hep-lat2016★ 140 cited

form factors, differential branching fraction, and angular observables from lattice QCD with relativistic quarks

William Detmold, Stefan Meinel

Using -flavor lattice QCD, we compute the 10 form factors describing the matrix elements of the vector, axial vector, and tensor currents. The calculat…

hep-lat2016★ 129 cited

Strongly interacting dynamics and the search for new physics at the LHC

Thomas Appelquist, Richard C. Brower, George T. Fleming +11

We present results for the spectrum of a strongly interacting SU(3) gauge theory with light fermions in the fundamental representation. Carrying out non-perturbative latt…

hep-lat2016★ 1 cited

The strange contribution to with physical quark masses using Möbius domain wall fermions

Matt Spraggs, Peter Boyle, Luigi Del Debbio +5

We present preliminary results for the strange leading-order hadronic contribution to the anomalous magnetic moment of the muon using RBC/UKQCD physical point domain wall fermions…