Spectral properties and chiral symmetry violations of (staggered) domain wall fermions in the Schwinger modelWe follow up on a suggestion by Adams and construct explicit domain wall fermion operators with staggered kernels. We compare different domain wall formulations, namely the standard construction as…Christian Hoelbling, Christian Zielinski·Feb 26, 2016SaveLearn
Applications of lattice QCD techniques for condensed matter systemsWe review the application of lattice QCD techniques, most notably the Hybrid Monte-Carlo (HMC) simulations, to first-principle study of tight-binding models of crystalline solids with strong…P. V. Buividovich, M. V. Ulybyshev·Feb 26, 2016SaveLearn
Λc-N interaction from lattice QCDWe investigate the s-wave Λc-N interaction for spin singlet systems(1S0) using the HAL QCD method. In our lattice QCD simulations, we employ gauge configurations generated by the PACS-CS…Takaya Miyamoto, for HAL QCD Collaboration·Feb 25, 2016SaveLearn
Controlling Excited-State Contamination in Nucleon Matrix ElementsWe present a detailed analysis of methods to reduce statistical errors and excited-state contamination in the calculation of matrix elements of quark bilinear operators in nucleon states. All the…Boram Yoon, Rajan Gupta, Tanmoy Bhattacharya et al.·Feb 24, 2016SaveLearn
Remarks on the pion-nucleon sigma-termThe pion-nucleon σ-term can be stringently constrained by the combination of analyticity, unitarity, and crossing symmetry with phenomenological information on the pion-nucleon scattering lengths.…Martin Hoferichter, Jacobo Ruiz de Elvira, Bastian Kubis et al.·Feb 24, 2016SaveLearn
Investigation of B B four-quark systems using lattice QCDWe investigate B B systems by computing potentials of two static quarks in the presence of two quarks of finite mass using lattice QCD. By solving the Schrödinger equation we check whether…Antje Peters, Pedro Bicudo, Krzysztof Cichy et al.·Feb 24, 2016SaveLearn
Closed flux tubes in D=2+1 SU(N) gauge theories: dynamics and effective string descriptionWe extend our earlier calculations of the spectrum of closed flux tubes in SU(N) gauge theories in 2+1 dimensions, with a focus on questions raised by recent theoretical progress on the effective…Andreas Athenodorou, Michael Teper·Feb 24, 2016SaveLearn
The Analytic Renormalization GroupFinite temperature Euclidean two-point functions in quantum mechanics or quantum field theory are characterized by a discrete set of Fourier coefficients Gk, k∈ Z, associated with the…Frank Ferrari·Feb 23, 2016SaveLearn
SU(2) Gauge Theory with Two Fundamental Flavours: a Minimal Template for Model BuildingWe investigate the continuum spectrum of the SU(2) gauge theory with Nf=2 flavours of fermions in the fundamental representation. This model provides a minimal template which is ideal for a wide…Rudy Arthur, Vincent Drach, Martin Hansen et al.·Feb 21, 2016SaveLearn
The Nf=2 QCD chiral phase transition with Wilson fermions at zero and imaginary chemical potentialThe order of the thermal phase transition in the chiral limit of Quantum Chromodynamics (QCD) with two dynamical flavors of quarks is a long-standing issue and still not known in the continuum limit.…Owe Philipsen, Christopher Pinke·Feb 19, 2016SaveLearn
Novel quark smearing for hadrons with high momenta in lattice QCDHadrons in lattice QCD are usually created employing smeared interpolators. We introduce a new quark smearing that allows us to maintain small statistical errors and good overlaps of hadronic…Gunnar S. Bali, Bernhard Lang, Bernhard U. Musch et al.·Feb 17, 2016SaveLearn
Effective Polyakov loop models for QCD-like theories at finite chemical potentialWe study genuine finite density effects in QCD-like theories with three-dimensional Polyakov-loop effective theories for heavy quarks. These are derived from the full QCD-like theories by combined…Philipp Scior, Lorenz von Smekal·Feb 15, 2016SaveLearn
Many flavor approach to study the nature of chiral phase transition of two-flavor QCDWe perform lattice numerical simulations to study the phase transition of QCD at finite temperature to clarify the nature of the transition of massless two flavor QCD. We investigate QCD with two…Norikazu Yamada, Shinji Ejiri, Ryo Iwami·Feb 15, 2016SaveLearn
Tricritical points in a compact U(1) lattice gauge theory at strong couplingPure compact U(1) lattice gauge theory exhibits a phase transition at gauge coupling g O(1) separating a familiar weak coupling Coulomb phase, having free massless photons,…Asit K. De, Mugdha Sarkar·Feb 12, 2016SaveLearn
K π semileptonic form factors with Nf=2+1+1 Twisted Mass fermionsWe present a lattice QCD determination of the vector and scalar form factors of the semileptonic K π ν decay which are relevant for the extraction of the CKM matrix element |Vus| from…N. Carrasco, P. Lami, V. Lubicz et al.·Feb 12, 2016SaveLearn
An exploratory study of heavy domain wall fermions on the latticeWe report on an exploratory study of domain wall fermions (DWF) as a lattice regularisation for heavy quarks. Within the framework of quenched QCD with the tree-level improved Symanzik gauge action…Peter Boyle, Andreas Juttner, Marina Krstic Marinkovic et al.·Feb 12, 2016SaveLearn
The hadronic vacuum polarization function with O(a)-improved Wilson fermions - an updateWe present an update of our lattice QCD study of the vacuum polarization function using O(a)-improved N f =2 Wilson fermions with increased statistics and a large set of momenta. The…Michele Della Morte, Gregorio Herdoiza, Hanno Horch et al.·Feb 12, 2016SaveLearn
B0(s)-mixing matrix elements from lattice QCD for the Standard Model and beyondWe calculate---for the first time in three-flavor lattice QCD---the hadronic matrix elements of all five local operators that contribute to neutral B0- and Bs-meson mixing in and beyond the…A. Bazavov, C. Bernard, C. M. Bouchard et al.·Feb 10, 2016SaveLearn
Fate of the Tetraquark Candidate Zc(3900) from Lattice QCDThe possible exotic meson Zc(3900), found in e+ e- reactions, is studied by the method of coupled-channel scattering in lattice QCD. The interaction among πJ/ψ, ρηc and DD*…Yoichi Ikeda, Sinya Aoki, Takumi Doi et al.·Feb 10, 2016SaveLearn
Massless sunset diagrams in finite asymmetric volumesThis paper discusses the methods and the results used in an accompanying paper describing the matching of effective chiral Lagrangians in dimensional and lattice regularizations. We present methods…Ferenc Niedermayer, Peter Weisz·Feb 9, 2016SaveLearn
Oscillating propagators in heavy-dense QCDUsing Monte Carlo simulations and extended mean field theory calculations we show that the 3-dimensional Z3 spin model with complex external fields has non-monotonic spatial correlators in some…Oscar Akerlund, Philippe de Forcrand, Tobias Rindlisbacher·Feb 9, 2016SaveLearn
The topological structures in strongly coupled QGP with chiral fermions on the latticeThe 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 in the flavor sector…Sayantan Sharma, Viktor Dick, Frithjof Karsch et al.·Feb 6, 2016SaveLearn
Lattice calculation of the leading strange quark-connected contribution to the muon g-2We present results for the leading hadronic contribution to the muon anomalous magnetic moment due to strange quark-connected vacuum polarisation effects. Simulations were performed using…T. Blum, P. A. Boyle, L. Del Debbio et al.·Feb 4, 2016SaveLearn
Modeling the Landau-Gauge Ghost Propagator in 2, 3 and 4 Space-Time DimensionsWe present an analytic description of numerical results for the ghost propagator G(p2) in minimal Landau gauge on the lattice. The data were produced in the SU(2) case using the largest lattice…Attilio Cucchieri, David Dudal, Tereza Mendes et al.·Feb 4, 2016SaveLearn
Roberge-Weiss endpoint at the physical point of Nf = 2+1 QCDWe study the phase diagram of Nf = 2+1 QCD in the T - μB plane and investigate the critical point corresponding to the onset of the Roberge-Weiss transition, which is found for imaginary values…Claudio Bonati, Massimo D'Elia, Marco Mariti et al.·Feb 3, 2016SaveLearn