(2+1)-flavor QCD Thermodynamics from the Gradient FlowRecently, we proposed a novel method to define and calculate the energy-momentum tensor (EMT) in lattice gauge theory on the basis of the Yang-Mills gradient flow [1]. In this proceedings, we…Etsuko Itou, Hiroshi Suzuki, Yusuke Taniguchi et al.·Nov 10, 2015SaveLearn
Calculation of the decay width of decuplet baryonsWe calculate the coupling constant and decay width of the decuplet to octet baryon transitions in lattice QCD using the transfer matrix method. The transition amplitude is related to the coupling…Constantia Alexandrou, John W. Negele, Marcus Petschlies et al.·Nov 9, 2015SaveLearn
Complex saddle points and the sign problem in complex Langevin simulationWe show that complex Langevin simulation converges to a wrong result, by relating it to the Lefschetz-thimble path integral, when the path-integral weight has different phases among dominant complex…Tomoya Hayata, Yoshimasa Hidaka, Yuya Tanizaki·Nov 8, 2015SaveLearn
Pion-pion scattering and the timelike pion form factor from Nf = 2+1 lattice QCD simulations using the stochastic LapH methodWe report on progress applying the stochastic LapH method to estimate all-to-all propagators required in correlation functions of multi-hadron operators relevant for pion-pion scattering.…John Bulava, Ben Hörz, Brendan Fahy et al.·Nov 7, 2015SaveLearn
Low energy scattering phase shifts for meson-baryon systemsIn this work, we calculate meson-baryon scattering phase shifts in four channels using lattice QCD methods. From a set of calculations at four volumes, corresponding to spatial sizes of 2, 2.5, 3,…William Detmold, Amy Nicholson·Nov 7, 2015SaveLearn
Decay constants fB and fBs from HISQ simulationsWe give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations…Fermilab Lattice, MILC Collaborations, : et al.·Nov 7, 2015SaveLearn
Dirac spectrum representation of Polyakov loop fluctuations in lattice QCDDirac spectrum representations of the Polyakov loop fluctuations are derived on the temporally odd-number lattice, where the temporal length is odd with the periodic boundary condition. We…Takahiro M. Doi, Krzysztof Redlich, Chihiro Sasaki et al.·Nov 6, 2015SaveLearn
Two-nucleon scattering in multiple partial wavesWe determine scattering phase shifts for S,P,D, and F partial wave channels in two-nucleon systems using lattice QCD methods. We use a generalization of Luscher's finite volume method to…Amy Nicholson, Evan Berkowitz, Enrico Rinaldi et al.·Nov 6, 2015SaveLearn
Nuclear Parity Violation from Lattice QCDThe electroweak interaction at the level of quarks and gluons are well understood from precision measurements in high energy collider experiments. Relating these fundamental parameters to Hadronic…Thorsten Kurth, Evan Berkowitz, Enrico Rinaldi et al.·Nov 6, 2015SaveLearn
Lattice study for conformal windows of SU(2) and SU(3) gauge theories with fundamental fermionsWe present our investigation of SU(2) gauge theory with 8 flavours, and SU(3) gauge theory with 12 flavours. For the SU(2) case, at strong bare coupling, β 1.45, the distribution of the…Cynthia Y. -H. Huang, Issaku Kanamori, C. -J. David Lin et al.·Nov 6, 2015SaveLearn
Flux tubes at finite temperatureThe chromoelectric field generated by a static quark-antiquark pair, with its peculiar tube-like shape, can be nicely described, at zero temperature, within the dual superconductor scenario for the…Paolo Cea, Leonardo Cosmai, Francesca Cuteri et al.·Nov 5, 2015SaveLearn
The Low Energy Constants of SU(2) Partially Quenched Chiral Perturbation Theory from Nf=2+1 Domain Wall QCDWe have performed fits of the pseudoscalar masses and decay constants, from a variety of RBC-UKQCD domain wall fermion ensembles, to SU(2) partially quenched chiral perturbation theory at next-to…P. A. Boyle, N. H. Christ, N. Garron et al.·Nov 5, 2015SaveLearn
Phenomenology with Lattice NRQCD b QuarksThe HPQCD collaboration has used radiatively-improved NonRelativistic QCD (NRQCD) for b quarks in bottomonium to determine the decay rate of Υ and Υ mesons to leptons in lattice QCD.…Brian Colquhoun, Christine T. H. Davies, Rachel J. Dowdall et al.·Nov 5, 2015SaveLearn
Search for the H-Dibaryon in two flavor Lattice QCDWe present preliminary results from a lattice QCD calculation of the H-dibaryon using two flavors of O(a) improved Wilson fermions. We employ local six-quark interpolating operators at…Parikshit Junnarkar, Anthony Francis, Jeremy Green et al.·Nov 5, 2015SaveLearn
On calculating disconnected-type hadronic light-by-light scattering diagrams from lattice QCDFor reliable comparison of the standard model prediction to the muon g-2 with its experimental value, the hadronic light-by-light scattering (HLbL) contribution must be calculated by lattice QCD…Masashi Hayakawa, Thomas Blum, Norman Christ et al.·Nov 4, 2015SaveLearn
Determination of K using lattice QCD inputsWe present results for the indirect CP violation parameter K determined directly from the standard model using lattice QCD to fix the inputs BK, ξ0, |Vus|, and…Jon A. Bailey, Yong-Chull Jang, Weonjong Lee et al.·Nov 3, 2015SaveLearn
Thermal evolution of the one-flavour Schwinger model using Matrix Product StatesThe Schwinger model, or 1+1 dimensional QED, offers an interesting object of study, both at zero and non-zero temperature, because of its similarities to QCD. In this proceeding, we present the a…H. Saito, M. C. Bañuls, K. Cichy et al.·Nov 3, 2015SaveLearn
Testing the Witten-Veneziano Formula on the LatticeIn this proceeding contribution we report on a test of the famous Witten-Veneziano formula using lattice techniques. We perform dedicated quenched simulations and apply the spectral projector method…Krzysztof Cichy, Elena Garcia-Ramos, Karl Jansen et al.·Nov 3, 2015SaveLearn
Heavy dense QCD from a 3d effective lattice theoryThe cold and dense regime of the QCD phase diagram is to this day inaccessible to first principle lattice calculations owing to the sign problem. Here we present progress of an ongoing effort to…Jonas Glesaaen, Mathias Neuman, Owe Philipsen·Nov 3, 2015SaveLearn
Chiral phase transition of Nf=2+1 and 3 QCD at vanishing baryon chemical potentialWe present updated results on chiral phase structure in (2+1)-flavor (Nf=2+1) and 3-flavor (Nf=3) QCD based on the simulations using Highly Improved Staggered Quarks on lattices with temporal…Heng-Tong Ding, Prasad Hegde·Nov 2, 2015SaveLearn
Critical flavour number of the Thirring model in three dimensionsThe Thirring model is a four fermion theory with vector interaction. We study it in three dimensions, where it is closely related to QED and other models used to describe properties of graphene. In…Daniel Schmidt, Björn Wellegehausen, Andreas Wipf·Nov 2, 2015SaveLearn
Large N meson propagators from twisted space-time reduced modelRecently, we proposed a new method to calculate meson propagators in the large N limit from twisted space-time reduced model. In this note, we give simulation details for obtaining meson spectra…Antonio González-Arroyo, Masanori Okawa·Nov 2, 2015SaveLearn
Disconnected quark loop contributions to nucleon observables using Nf=2 twisted clover fermions at the physical value of the light quark massWe compute the disconnected quark loops contributions entering the determination of nucleon observables, by using a Nf = 2 ensemble of twisted mass fermions with a clover term at a pion mass $mπ=…Abdou Abdel-Rehim, Constantia Alexandrou, Martha Constantinou et al.·Nov 2, 2015SaveLearn
Non-perturbative Renormalization of Bilinear Operators on Fine LatticeWe present results of the wave function renormalization factor Zq and mass renormalization factor Zm obtained using non-perturbative renormalization (NPR) method in the RI-MOM scheme with HYP…Hwancheol Jeong, Jangho Kim, Weonjong Lee et al.·Nov 2, 2015SaveLearn
Tensor renormalization group analysis of CP(N-1) model in two dimensionsWe apply the higher order tensor renormalization group to lattice CP(N-1) model in two dimensions. A tensor network representation of CP(N-1) model is derived. We confirm that the numerical…Hikaru Kawauchi, Shinji Takeda·Nov 2, 2015SaveLearn