Perturbative renormalization of ΔF = 2 four-fermion operators with the chirally rotated Schrödinger functionalThe chirally rotated Schrödinger functional (χSF) renders the mechanism of automatic O(a) improvement compatible with Schrödinger functional (SF) renormalization schemes. Here we define a family…Mattia Dalla Brida, Mauro Papinutto, Pol Vilaseca·May 29, 2016SaveLearn
Excitations of strange bottom baryonsThe ground state and first excited state masses of Omega(b) and Omega(bb) baryons are calculated in lattice QCD using dynamical 2+1 flavour gauge fields. A set of baryon operators employing different…R. M. Woloshyn·May 29, 2016SaveLearn
Nonperturbative renormalization of the Delta-S=1 weak Hamiltonian including the G1 operatorUnder renormalization, physical operators can mix with operators which vanish by the equations of motion. Such operators cannot contribute to matrix elements between physical states, but they…Greg McGlynn·May 27, 2016SaveLearn
Status of a minimal composite Higgs theoryWe analyze three sets of gauge ensembles in our extended physics program of a particularly important BSM gauge theory with a fermion doublet in the two-index symmetric (sextet) representation of the…Zoltan Fodor, Kieran Holland, Julius Kuti et al.·May 27, 2016SaveLearn
Computing the topological susceptibility from fixed topology QCD simulationsThe topological susceptibility is an important quantity in QCD, which can be computed using lattice methods. However, at a fine lattice spacing, or when using high quality chirally symmetric quarks,…Arthur Dromard, Wolfgang Bietenholz, Krzysztof Cichy et al.·May 27, 2016SaveLearn
Monte Carlo study of real time dynamicsMonte Carlo studies involving real time dynamics are severely restricted by the sign problem that emerges from highly oscillatory phase of the path integral. In this letter, we present a new method…Andrei Alexandru, Gokce Basar, Paulo F. Bedaque et al.·May 25, 2016SaveLearn
New approach to the Dirac spectral density in lattice gauge theory applicationsWe report tests and results from a new approach to the spectral density and the mode number distribution of the Dirac operator in lattice gauge theories. The algorithm generates the spectral density…Zoltan Fodor, Kieran Holland, Julius Kuti et al.·May 25, 2016SaveLearn
Position space method for the nucleon magnetic moment in lattice QCDThe extraction of the magnetic form factor of the nucleon at zero momentum transfer is usually performed by adopting a parametrization for its momentum dependence and fitting the results obtained at…Constantia Alexandrou, Martha Constantinou, Giannis Koutsou et al.·May 24, 2016SaveLearn
Semileptonic Bc decays from full lattice QCDWe present first lattice QCD results for semileptonic form factors for the decays Bc ηc l ν and Bc J/ψl ν over the full q2 range, using both improved non-relativistic QCD (NRQCD)…Andrew Lytle, Brian Colquhoun, Christine Davies et al.·May 18, 2016SaveLearn
Two-flavor Simulations of the ρ(770) and the Role of the K K ChannelThe ρ(770) meson is the most extensively studied resonance in lattice QCD simulations in two (Nf=2) and three (Nf=2+1) flavor formulations. We analyze Nf=2 lattice scattering data using…B. Hu, R. Molina, M. Döring et al.·May 16, 2016SaveLearn
Comparison between Fermion Bag Approach and Complex Langevin Dynamics for Massive Thirring Model at Finite Density in 0 + 1 DimensionsWe consider the massive Thirring model at finite density in 0+1 dimension. The fermion bag approach, Langevin dynamics and complex Langevin dynamics are adopted to attack the sign problem for this…Daming Li·May 16, 2016SaveLearn
Critical endline of the finite temperature phase transition for 2+1 flavor QCD around the SU(3)-flavor symmetric pointWe investigate the critical endline of the finite temperature phase transition of QCD around the SU(3)-flavor symmetric point at zero chemical potential. We employ the renormalization-group improved…Yoshinobu Kuramashi, Yoshifumi Nakamura, Shinji Takeda et al.·May 16, 2016SaveLearn
Prospects for a lattice computation of rare kaon decay amplitudes II Kπνν decaysThe rare kaon decays Kπνν are strongly suppressed in the standard model and widely regarded as processes in which new phenomena, not predicted by the standard model, may be observed.…Norman H. Christ, Xu Feng, Antonin Portelli et al.·May 14, 2016SaveLearn
Extra-dimensional models on the latticeIn this review we summarize the ongoing effort to study extra-dimensional gauge theories with lattice simulations. In these models the Higgs field is identified with extra-dimensional components of…Francesco Knechtli, Enrico Rinaldi·May 13, 2016SaveLearn
Study of the phase diagram of dense two-color QCD within lattice simulationIn this paper we carry out a low-temperature scan of the phase diagram of dense two-color QCD with Nf=2 quarks. The study is conducted using lattice simulation with rooted staggered quarks. At…V. V. Braguta, E. -M. Ilgenfritz, A. Yu. Kotov et al.·May 13, 2016SaveLearn
Rho resonance parameters from lattice QCDWe perform a high-precision calculation of the phase shifts for π-π scattering in the I = 1, J = 1 channel in the elastic region using elongated lattices with two mass-degenerate quark favors…Dehua Guo, Andrei Alexandru, Raquel Molina et al.·May 12, 2016SaveLearn
The B K* form factors on the latticeThe extraction of the B K* transition form factors from lattice data is studied, applying non-relativistic effective field theory in a finite volume. The possible mixing of πK and ηK states…Andria Agadjanov, Véronique Bernard, Ulf-G. Meißner et al.·May 11, 2016SaveLearn
Bosonic Partition FunctionsThe behavior of quenched Dirac spectra of two-dimensional lattice QCD is consistent with spontaneous chiral symmetry breaking which is forbidden according to the Coleman-Mermin-Wagner theorem. One…M. Kellerstein, K. Splittorff, J. J. M. Verbaarschot·May 10, 2016SaveLearn
Latent heat at the first order phase transition point of SU(3) gauge theoryWe calculate the energy gap (latent heat) and pressure gap between the hot and cold phases of the SU(3) gauge theory at the first order deconfining phase transition point. We perform simulations…Mizuki Shirogane, Shinji Ejiri, Ryo Iwami et al.·May 10, 2016SaveLearn
Anatomy of the sign-problem in heavy-dense QCDQCD at finite densities of heavy quarks is investigated using the density-of-states method. The phase factor expectation value of the quark determinant is calculated to unprecedented precision as a…Nicolas Garron, Kurt Langfeld·May 9, 2016SaveLearn
Nucleon matrix elements from lattice QCD with all-mode-averaging and a domain-decomposed solver: an exploratory studyWe study the performance of all-mode-averaging (AMA) when used in conjunction with a locally deflated SAP-preconditioned solver, determining how to optimize the local block sizes and number of…Georg von Hippel, Thomas D. Rae, Eigo Shintani et al.·May 2, 2016SaveLearn
Lattice Gluon and Ghost Propagators, and the Strong Coupling in Pure SU(3) Yang-Mills Theory: Finite Lattice Spacing and Volume EffectsThe dependence of the Landau gauge two point gluon and ghost correlation functions on the lattice spacing and on the physical volume are investigated for pure SU(3) Yang-Mills theory in four…Anthony G. Duarte, Orlando Oliveira, Paulo J. Silva·May 2, 2016SaveLearn
Renormalization of domain-wall bilinear operators with short-distance current correlatorsWe determine the renormalization constants for flavor non-singlet fermion bilinear operators of Möbius domain-wall fermions. The renormalization condition is imposed on the correlation functions in…JLQCD collaboration, M. Tomii, G. Cossu et al.·Apr 29, 2016SaveLearn
Berry phase in lattice QCDWe propose the lattice QCD calculation of the Berry phase which is defined by the ground state of a single fermion. We perform the ground-state projection of a single-fermion propagator, construct…Arata Yamamoto·Apr 28, 2016SaveLearn
A Fast Algorithm for Lattice Hyperonic PotentialsWe describe an efficient algorithm to compute a large number of baryon-baryon interactions from NN to ΞΞ by means of HAL QCD method, which lays the groundwork for the nearly physical point…Hidekatsu Nemura, Sinya Aoki, Takumi Doi et al.·Apr 28, 2016SaveLearn