First study of Nf=2+1+1 lattice QCD with physical domain-wall quarksUsing 10-16 units of Nvidia DGX-1, we have generated the first gauge ensemble for Nf=2+1+1 lattice QCD with physical (u/d, s, c) domain-wall quarks, on the 644 lattice with lattice spacing…Ting-Wai Chiu·Feb 14, 2020SaveLearn
Projective Cooling for the transverse Ising modelWe demonstrate the feasibility of ground state preparation for the transverse Ising model using projective cooling, and show that the algorithm can effectively construct the ground state in the…Erik Gustafson·Feb 14, 2020SaveLearn
Leptonic decays of B(s) and D(s) using the OK actionWe present recent progress in the lattice calculation of leptonic decay constants for B(s) and D(s) mesons using the Oktay-Kronfeld (OK) action for charm and bottom valence quarks, whose…Tanmoy Bhattacharya, Benjamin J. Choi, Rajan Gupta et al.·Feb 12, 2020SaveLearn
Dilaton EFT from p-regime to RMT in the ε-regimeNew results are reported from tests of a low-energy effective field theory (EFT) that includes a dilaton field to describe the emergent light scalar with 0++ quantum numbers in the strongly…Zoltan Fodor, Kieran Holland, Julius Kuti et al.·Feb 12, 2020SaveLearn
Threshold expansion formula of N-boson in finite volume from variational approachIn present work, we show how the threshold expansion formula of N identical bosons in finite volume may be derived by iterations of Faddeev-type coupled dynamical equations. The energy shift of…Peng Guo·Feb 10, 2020SaveLearn
Scale setting for Nf=3+1 QCDWe present the scale setting for a new set of gauge configurations generated with Nf=3+1 Wilson quarks with a non-perturbatively determined clover coefficient in a massive O(a) improvement…Roman Höllwieser, Francesco Knechtli, Tomasz Korzec·Feb 7, 2020SaveLearn
The QCD crossover at finite chemical potential from lattice simulationsWe provide the most accurate results for the QCD transition line so far. We optimize the definition of the crossover temperature Tc, allowing for its very precise determination, and extrapolate…Szabolcs Borsanyi, Zoltan Fodor, Jana N. Guenther et al.·Feb 7, 2020SaveLearn
Nucleon charges and form factors using clover and HISQ ensemblesWe present high statistics (O(2× 105) measurements) preliminary results on (i) the isovector charges, gu-dA,S,T, and form factors, Gu-dE(Q2), Gu-dM(Q2),…Sungwoo Park, Tanmoy Bhattacharya, Rajan Gupta et al.·Feb 6, 2020SaveLearn
Higher order cumulants of net baryon-number distributions at non-zero μBUsing recent results on higher order cumulants of conserved charge fluctuations from lattice QCD, we construct mean, variance, skewness, kurtosis, hyper-skewness and hyper-kurtosis of net-baryon…Dennis Bollweg, Frithjof Karsch, Swagato Mukherjee et al.·Feb 5, 2020SaveLearn
Contraction Diagram Analysis in Pion-Kaon ScatteringWe study the contributions from the connected and disconnected contraction diagrams to the pion-kaon scattering amplitude within the framework of SU(4|1) partially-quenched chiral perturbation…Chaitra Kalmahalli Guruswamy, Ulf-G. Meißner, Chien-Yeah Seng·Feb 5, 2020SaveLearn
Kl3 form factors in Nf = 2+1 QCD at physical point on large volumeWe present our results of the Kl3 form factors on the volume whose spatial extent is more than L=10 fm, with the physical pion and kaon masses using the stout-smearing clover Nf = 2+1 quark…Junpei Kakazu, Ken-ichi Ishikawa, Naruhito Ishizuka et al.·Feb 5, 2020SaveLearn
Improved Reweighting for QCD Topology at High TemperatureIn a previous paper Jahn:2018dke we presented a methodology for computing the topological susceptibility of QCD at temperatures where it is small and standard methods fail. Here we improve on…P. Thomas Jahn, Guy D. Moore, Daniel Robaina·Feb 4, 2020SaveLearn
Thermal modifications of quarkonia and heavy quark diffusion from a comparison of continuum-extrapolated lattice results to perturbative QCDWe investigate the in-medium modifications of heavy quarkonia in the vector channel and the heavy quark diffusion coefficient by comparing Euclidean correlators from the lattice to a perturbative…Anna-Lena Lorenz, Heng-Tong Ding, Olaf Kaczmarek et al.·Feb 3, 2020SaveLearn
One-thimble regularisation of lattice field theories: is it only a dream?Lefschetz thimbles regularisation of (lattice) field theories was put forward as a possible solution to the sign problem. Despite elegant and conceptually simple, it has many subtleties, a major one…Francesco Di Renzo, Simran Singh, Kevin Zambello·Feb 2, 2020SaveLearn
Stealth dark matter and gravitational wavesI present first results from ongoing lattice investigations into the finite-temperature dynamics of stealth dark matter, which adds to the standard model a new SU(4) gauge sector with four moderately…David Schaich·Feb 1, 2020SaveLearn
Pion valence quark PDF from lattice QCDWe present lattice results on the valence-quark structure of the pion using a coordinate space method within the framework of Large Momentum Effective Theory (LaMET). In this method one relies on the…Charles Shugert, Xiang Gao, Taku Izubichi et al.·Jan 31, 2020SaveLearn
Exotic Phases of a Higgs-Yukawa Model with Reduced Staggered FermionsWe investigate the phase structure of a four dimensional SO(4) invariant lattice Higgs-Yukawa model comprising four reduced staggered fermions interacting with a real scalar field. The fermions…Simon Catterall, Nouman Butt, David Schaich·Jan 31, 2020SaveLearn
Consistency checks for two-body finite-volume matrix elements: II. Perturbative systemsUsing the general formalism presented in Refs. [1,2], we study the finite-volume effects for the 2+J2 matrix element of an external current coupled to a two-particle…Raúl A. Briceño, Maxwell T. Hansen, Andrew W. Jackura·Jan 31, 2020SaveLearn
Euclidean correlation functions of the topological charge densityWe present first results of our study on the Euclidean topological charge density correlation function. In order to get a well defined topological charge density and to improve the signal of the…Lukas Mazur, Luis Altenkort, Olaf Kaczmarek et al.·Jan 31, 2020SaveLearn
Recent Developments of Muon g-2 from Lattice QCDOne of the most promising quantities for the search of signatures of physics beyond the Standard Model is the anomalous magnetic moment g-2 of the muon, where a comparison of the experimental…Vera Gülpers·Jan 31, 2020SaveLearn
Reconstruction of smeared spectral function from Euclidean correlation functionsWe propose a method to reconstruct smeared spectral functions from two-point correlation functions measured on the Euclidean lattice. Arbitrary smearing function can be considered as far as it is…Gabriela Bailas, Shoji Hashimoto, Tsutomu Ishikawa·Jan 31, 2020SaveLearn
Study of intermediate states in the inclusive semileptonic B → Xc l ν decay structure functionWe analyze the inclusive semileptonic B Xc ν structure functions in 2+1-flavor lattice QCD. The Möbius domain-wall fermion action is used for light, strange, charm and bottom quarks. The…G. Bailas, S. Hashimoto, T. Kaneko et al.·Jan 31, 2020SaveLearn
Nucleon Axial Form Factors from Clover Fermion on 2+1+1-flavor HISQ LatticeThe nucleon axial form factors -- axial GA, induced pseudoscalar GP and pseudoscalar GP -- have displayed large systematics in lattice QCD calculations. The major symptoms were…Yong-Chull Jang, Rajan Gupta, Tanmoy Bhattacharya et al.·Jan 30, 2020SaveLearn
Quantum Simulation of Field Theories Without State PreparationWe propose an algorithm for computing real-time observables using a quantum processor while avoiding the need to prepare the full quantum state. This reduction in quantum resources is achieved by…Siddhartha Harmalkar, Henry Lamm, Scott Lawrence·Jan 30, 2020SaveLearn
Charmonium contribution to $B → K+-: testing the factorization approximation on the latticeWe report the current status of a study of charmonium contribution to B → K+- on the lattice. Our lattice calculation tests the factorization approximation for this…Katsumasa Nakayama, Tsutomu Ishikawa, Shoji Hashimoto·Jan 29, 2020SaveLearn