Search of QCD phase transition points in the canonical approach of the NJL modelWe study the Lee-Yang zeros in the canonical approach to search phase transition points at finite temperature and density in the Nambu-Jona-Lasinio (NJL) model as an effective model of QCD. The…Masayuki Wakayama, Atsushi Hosaka·May 27, 2019SaveLearn
Pion scattering in the isospin I=2 channel from elongated latticesPion-pion elastic scattering in the isospin I=2 channel is investigated in two-flavor dynamical lattice QCD. Six ensembles are used with lattices elongated in one of the spatial dimensions at two…C. Culver, M. Mai, A. Alexandru et al.·May 24, 2019SaveLearn
Heavy baryon spectroscopy from lattice QCDIn this report, the most recent and precise estimates of masses of ground state baryons using lattice QCD are discussed. Considering the prospects in the heavy baryon sector, lattice estimates for…M. Padmanath·May 24, 2019SaveLearn
Full O(a) improvement in EQCDEQCD is a 3D bosonic theory containing SU(3) and an adjoint scalar, which efficiently describes the infrared, nonperturbative sector of hot QCD and which is highly amenable to lattice study. We…Guy D. Moore, Niels Schlusser·May 23, 2019SaveLearn
A qubit model for U(1) lattice gauge theoryA conceptually simple model for strongly interacting compact U(1) lattice gauge theory is expressed as operators acting on qubits. The number of independent gauge links is reduced to its minimum…Randy Lewis, R. M. Woloshyn·May 23, 2019SaveLearn
Hadron Spectroscopy and Resonances: ReviewI review recent results on hadron spectroscopy using lattice QCD. In light of the discoveries in heavy baryon sector at LHCb over the past few years, lattice calculations in this regard are…M. Padmanath·May 23, 2019SaveLearn
Light quark vacuum polarization at the physical point and contribution to the muon g-2We report on the computation of the connected light quark vacuum polarization with 2+1+1 flavors of HISQ fermions at the physical point and its contribution to the muon anomalous magnetic moment.…Christopher Aubin, Thomas Blum, Cheng Tu et al.·May 22, 2019SaveLearn
Pseudoscalar flavor-singlet mesons from lattice QCDWe investigate the masses and mixing of η, η' mesons in the framework of twisted mass lattice QCD with Nf=2+1+1 dynamical quark flavors. For the first time we perform a controlled chiral…Konstantin Ottnad·May 20, 2019SaveLearn
Axial Vector Form Factors from Lattice QCD that Satisfy the PCAC RelationPrevious lattice QCD calculations of axial vector and pseudoscalar form factors show significant deviation from the partially conserved axial current (PCAC) relation between them. Since the original…Yong-Chull Jang, Rajan Gupta, Boram Yoon et al.·May 15, 2019SaveLearn
Valence parton distribution function of pion from fine latticeWe present a lattice QCD study of valence parton distribution inside the pion within the framework of Large Momentum Effective Theory. We use a mixed action approach with 1-HYP smeared valence Wilson…Taku Izubuchi, Luchang Jin, Christos Kallidonis et al.·May 15, 2019SaveLearn
The gradient flow coupling at high-energy and the scale of SU(3) Yang-Mills theoryUsing finite size scaling techniques and a renormalization scheme based on the Gradient Flow, we determine non-perturbatively the β-function of the SU(3) Yang-Mills theory for a range of…Mattia Dalla Brida, Alberto Ramos·May 13, 2019SaveLearn
String confinement in 2-form lattice gauge theoryWe study the confinement between vortex strings in the dual lattice gauge theory of the abelian Higgs model. The dual lattice gauge theory is described by a 2-form gauge field. We calculate the…Tomoya Hayata, Arata Yamamoto·May 11, 2019SaveLearn
Two- and three-pion finite-volume spectra at maximal isospin from lattice QCDWe present the three-pion spectrum with maximal isospin in a finite volume determined from lattice QCD, including excited states in addition to the ground states across various irreducible…Ben Hörz, Andrew Hanlon·May 10, 2019SaveLearn
Topology and index theorem with a generalized Villain lattice action -- a test in 2dUsing 2-d U(1) lattice gauge theory we study two definitions of the topological charge constructed from a generalized Villain action and analyze the implementation of the index theorem based on the…Christof Gattringer, Pascal Törek·May 10, 2019SaveLearn
Critical behavior and net-charge fluctuations from lattice QCDWe present recent results on the critical and pseudo-critical temperatures in (2+1)-flavor QCD with a physical strange quark mass and two degenerate light quark masses extrapolated to the chiral…Frithjof Karsch·May 10, 2019SaveLearn
Charmonium resonances with JPC=1-- and 3-- from DD scattering on the latticeWe present a lattice QCD study of charmonium resonances and bound states with JPC=1-- and 3-- near the open-charm threshold, taking into account their strong transitions to DD.…S. Piemonte, S. Collins, D. Mohler et al.·May 9, 2019SaveLearn
Critical end points in (2+1)-flavor QCD with imaginary chemical potentialWe present here the results from an ongoing determination of the critical quark mass in simulations of (2+1)-flavor QCD with an imaginary chemical potential. Studies with unimproved actions found the…Jishnu Goswami, Frithjof Karsch, Anirban Lahiri et al.·May 8, 2019SaveLearn
The Stochastic Feynman-Hellmann MethodThe Feynman-Hellmann method, as implemented by Bouchard et al. [1612.06963], was recently employed successfully to determine the nucleon axial charge. A limitation of the method was the restriction…Arjun Singh Gambhir, Evan Berkowitz, David Brantley et al.·May 8, 2019SaveLearn
Magnetized baryons and the QCD phase diagram: NJL model meets the latticeWe determine the baryon spectrum of 1 + 1 + 1-flavor QCD in the presence of strong background magnetic fields using lattice simulations at physical quark masses for the first time. Our results show a…Gergely Endrődi, Gergely Markó·May 6, 2019SaveLearn
The flavor dependence of m / fπWe calculate the m / fπ ratio in the chiral and continuum limit for SU(3) gauge theory coupled to Nf = 2,3,4,5,6 fermions in the fundamental representation. Keeping all systematic…Daniel Nogradi, Lorinc Szikszai·May 6, 2019SaveLearn
Nucleon isovector charges and twist-2 matrix elements with Nf=2+1 dynamical Wilson quarksWe present results from a lattice QCD study of nucleon matrix elements at vanishing momentum transfer for local and twist-2 isovector operator insertions. Computations are performed on gauge…Tim Harris, Georg von Hippel, Parikshit Junnarkar et al.·May 3, 2019SaveLearn
Results and techniques for higher order calculations within the gradient-flow formalismWe describe in detail the implementation of a systematic perturbative approach to observables in the QCD gradient-flow formalism. This includes a collection of all relevant Feynman rules of the…Johannes Artz, Robert V. Harlander, Fabian Lange et al.·May 2, 2019SaveLearn
Screening without screening: baryon energy at high baryon densityWe compute the Coulomb interaction energy of dense sets of static quarks in a compact volume (much smaller than the lattice volume) containing one quark per lattice site. The quark color charges are…Jeff Greensite, Evan Owen·May 2, 2019SaveLearn
Tensor representations of lattice vertices from hypercubic symmetryWe present a symmetry-based method for obtaining suitable tensor descriptions of lattice vertex functions without spinor components. The approach is based on finding the polynomial functions of…Milan Vujinovic·May 2, 2019SaveLearn
Absence of chiral symmetry breaking in Thirring models in 1+2 dimensionsThe Thirring model is an interacting fermion theory with current-current interaction. The model in 1+2 dimensions has applications in condensed-matter physics to describe the electronic excitations…Julian Lenz, Björn Wellegehausen, Andreas Wipf·Apr 30, 2019SaveLearn