Energy-momentum tensor correlation function in Nf=2+1 full QCD at finite temperatureWe measure correlation functions of the nonperturbatively renormalized energy-momentum tensor in Nf=2+1 full QCD at finite temperature by applying the gradient flow method both to the gauge and…Yusuke Taniguchi, Shinji Ejiri, Kazuyuki Kanaya et al.·Nov 7, 2017SaveLearn
How to identify zero modes for improved staggered fermionsWe present results of the eigenvalue spectrum for the staggered Diräc operator obtained using a modified Lanczos algorithm. We identify zero modes and non-zero modes. We derive the chiral Ward…Hwancheol Jeong, Seungyeob Jwa, Jangho Kim et al.·Nov 6, 2017SaveLearn
Calculation of B → D ν form factor at zero recoil using the Oktay-Kronfeld actionWe present the first preliminary results for the semileptonic form factor hA1(w=1)/ρAj at zero recoil for the B → D ν decay using lattice QCD with four…Jon A. Bailey, Tanmoy Bhattacharya, Rajan Gupta et al.·Nov 6, 2017SaveLearn
Improvement of heavy-heavy current for calculation of B D(*)ν form factors using Oktay-Kronfeld heavy quarksThe CKM matrix element |Vcb| can be extracted by combining data from experiments with lattice QCD results for the semileptonic form factors for the B D(*) ν decays. The…Jon A. Bailey, Yong-Chull Jang, Weonjong Lee et al.·Nov 6, 2017SaveLearn
Lattice QCD input for nuclear structure and reactionsExplorations of the properties of light nuclear systems beyond their lowest-lying spectra have begun with Lattice Quantum Chromodynamics. While progress has been made in the past year in pursuing…Zohreh Davoudi·Nov 6, 2017SaveLearn
Application of tensor network method to two dimensional lattice N=1 Wess-Zumino modelWe study a tensor network formulation of the two dimensional lattice N=1 Wess-Zumino model with Wilson derivatives for both fermions and bosons. The tensor renormalization group allows us…Ryo Sakai, Daisuke Kadoh, Yoshinobu Kuramashi et al.·Nov 6, 2017SaveLearn
I=2 ππ scattering phase shift from the HAL QCD method with the LapH smearingPhysical observables, such as the scattering phase shifts and the binding energies, calculated from the non-local HAL QCD potential do not depend on the sink operators used to define the potential.…Daisuke Kawai, Sinya Aoki, Takumi Doi et al.·Nov 6, 2017SaveLearn
Observation of deconfinement in a cold dense quark mediumIn this paper we study the confinement/deconfinement transition in lattice SU(2) QCD at finite quark density and zero temperature. The simulations are performed on an 324 lattice with rooted…V. G. Bornyakov, V. V. Braguta, E. -M. Ilgenfritz et al.·Nov 6, 2017SaveLearn
SU(3) Yang Mills theory at small distances and fine latticesWe investigate the SU(3) Yang Mills theory at small gradient flow time and at short distances. Lattice spacings down to a=0.015 fm are simulated with open boundary conditions to allow topology to…Nikolai Husung, Mateusz Koren, Philipp Krah et al.·Nov 6, 2017SaveLearn
Local multiboson factorization of the quark determinantWe discuss the recently proposed multiboson domain-decomposed factorization of the gauge-field dependence of the fermion determinant in lattice QCD. In particular, we focus on the case of a lattice…Marco Cè, Leonardo Giusti, Stefan Schaefer·Nov 5, 2017SaveLearn
Efficient operators for studying higher partial wavesAn extended multi-hadron operator is developed to extract the spectra of irreducible representations in the finite volume. The irreducible representations of the cubic group are projected using a…Jia-jun Wu, Waseem Kamleh, Derek B. Leinweber et al.·Nov 4, 2017SaveLearn
HQET form factors for Bs Kν decays beyond leading orderWe compute semi-leptonic Bs decay form factors using Heavy Quark Effective Theory on the lattice. To obtain good control of the 1/mb expansion, one has to take into account not only the leading…Debasish Banerjee, Mateusz Koren, Hubert Simma et al.·Nov 3, 2017SaveLearn
Baryon interactions from lattice QCD with physical quark masses -- Nuclear forces and ΞΞ forces --We present the latest lattice QCD results for baryon interactions obtained at nearly physical quark masses. Nf = 2+1 nonperturbatively O(a)-improved Wilson quark action with stout…Takumi Doi, Takumi Iritani, Sinya Aoki et al.·Nov 3, 2017SaveLearn
Lattice QCD on new chips: a community summaryI review the most recent evolutions of the QCD codes on new architectures, with a focus on the performances obtained by the different coding strategies as presented during the Lattice2017 conference.Antonio Rago·Nov 3, 2017SaveLearn
The ξ/ξ2nd ratio as a test for Effective Polyakov Loop ActionsEffective Polyakov line actions are a powerful tool to study the finite temperature behaviour of lattice gauge theories. They are much simpler to simulate than the original (3+1) dimensional LGTs and…Michele Caselle, Alessandro Nada·Nov 3, 2017SaveLearn
Two-dimensional N=2 Super-Yang-Mills TheorySupersymmetry is one of the possible scenarios for physics beyond the standard model. The building blocks of this scenario are supersymmetric gauge theories. In our work we study the N=1…Daniel August, Björn Wellegehausen, Andreas Wipf·Nov 3, 2017SaveLearn
Determination of the Strong Coupling Constant by the ALPHA CollaborationA high precision determination of the strong coupling constant in the MS-bar scheme at the Z-mass scale, using low energy quantities, namely pion/kaon decay constants and masses, as experimental…Tomasz Korzec·Nov 3, 2017SaveLearn
Glueball relevant study on isoscalars from Nf=2 lattice QCDWe perform a glueball-relevant study on isoscalars based on anisotropic Nf=2 lattice QCD gauge configurations. In the scalar channel, we identify the ground state obtained through gluonic…Wei Sun, Long-cheng Gui, Ying Chen et al.·Nov 2, 2017SaveLearn
Perturbative Renormalization of Wilson line operatorsWe present results for the renormalization of gauge invariant nonlocal fermion operators which contain a Wilson line, to one loop level in lattice perturbation theory. Our calculations have been…M. Constantinou, H. Panagopoulos·Nov 1, 2017SaveLearn
On the gauge invariant path-integral measure for the overlap Weyl fermions in 16 of SO(10)We consider the lattice formulation of SO(10) chiral gauge theory with left-handed Weyl fermions in the sixteen dimensional spinor representation (16) within the framework of the…Yoshio Kikukawa·Oct 31, 2017SaveLearn
Nonperturbative determination of β functions for SU(3) gauge theories with 10 and 12 fundamental flavors using domain wall fermionsNonperturbative lattice field theory simulations provide a systematic framework to investigate properties of conformal systems at strong couplings. These simulations can be performed using different…A. Hasenfratz, C. Rebbi, O. Witzel·Oct 31, 2017SaveLearn
Weakly coupled conformal gauge theories on the latticeResults are reported for the beta-function of weakly coupled conformal gauge theories on the lattice, SU(3) with Nf=14 fundamental and Nf=3 sextet fermions. The models are chosen to be close to the…Zoltan Fodor, Kieran Holland, Julius Kuti et al.·Oct 31, 2017SaveLearn
Statistical Angles on the Lattice QCD Signal-to-Noise ProblemThe theory of quantum chromodynamics (QCD) encodes the strong interactions that bind quarks and gluons into nucleons and that bind nucleons into nuclei. Predictive control of QCD would allow nuclear…Michael L. Wagman·Oct 31, 2017SaveLearn
Spin models in complex magnetic fields: a hard sign problemCoupling spin models to complex external fields can give rise to interesting phenomena like zeroes of the partition function (Lee-Yang zeroes, edge singularities) or oscillating propagators.…Philippe de Forcrand, Tobias Rindlisbacher·Oct 31, 2017SaveLearn
N = 2* Yang-Mills on the LatticeThe N = 2* Yang-Mills theory in four dimensions is a non-conformal theory that appears as a mass deformation of maximally supersymmetric N = 4 Yang-Mills theory. This theory also…Anosh Joseph·Oct 31, 2017SaveLearn