Radiative leptonic decays on the latticeAdding a hard photon to the final state of a leptonic pseudoscalar-meson decay lifts the helicity suppression and can provide sensitivity to a larger set of operators in the weak effective…Christopher Kane, Christoph Lehner, Stefan Meinel et al.·Jun 29, 2019SaveLearn
Elastic Form Factors of Nucleon Excitations in Lattice QCDFirst principles calculations of the form factors of baryon excitations are now becoming accessible through advances in Lattice QCD techniques. In this paper, we explore the utility of the…Finn M. Stokes, Waseem Kamleh, Derek B. Leinweber·Jun 29, 2019SaveLearn
Gluon Field Digitization for Quantum ComputersSimulations of gauge theories on quantum computers require the digitization of continuous field variables. Digitization schemes that uses the minimum amount of qubits are desirable. We present a…Andrei Alexandru, Paulo F. Bedaque, Siddhartha Harmalkar et al.·Jun 26, 2019SaveLearn
Toward the spectrum of the SU(2) adjoint Higgs modelScalar particles in the adjoint representation of a non-Abelian gauge theory play an important role in many scenarios beyond the standard model, especially of GUT type. For such theories manifestly…Vincenzo Afferrante, Axel Maas, Pascal Törek·Jun 26, 2019SaveLearn
Universal Renormalons in Principal Chiral ModelsPerturbative expansions in many physical systems yield 'only' asymptotic series which are not even Borel resummable. Interestingly, the corresponding ambiguities point to nonperturbative physics. We…Falk Bruckmann, Matthias Puhr·Jun 22, 2019SaveLearn
Low-energy constants from charmed baryons on QCD latticesWe study the light quark-mass dependence of charmed baryon masses as measured by various QCD lattice collaborations. A global fit to such data based on the chiral SU(3) Lagrangian is reported on. All…Yonggoo Heo, Xiao-Yu Guo, Matthias F. M. Lutz·Jun 18, 2019SaveLearn
Universality of Pattern FormationWe study a PT-symmetric scalar Euclidean field theory with a complex action, using both theoretical analysis and lattice simulations. This model has a rich phase structure that exhibits…Moses A. Schindler, Stella T. Schindler, Leandro Medina et al.·Jun 17, 2019SaveLearn
Possible New Phase of Thermal QCDUsing lattice simulations, we show that there is a phase of thermal QCD, where the spectral density ρ(λ) of Dirac operator changes as 1/λ for the infrared eigenvalues λ<T. This behavior…Andrei Alexandru, Ivan Horváth·Jun 17, 2019SaveLearn
Nucleon Electromagnetic Form Factors in the Continuum Limit from 2+1+1-flavor Lattice QCDResults are presented for the nucleon isovector electromagnetic form factors using 11 ensembles generated by the MILC collaboration using the 2+1+1-flavors HISQ action. They span 4 lattice spacings…Yong-Chull Jang, Rajan Gupta, Huey-Wen Lin et al.·Jun 17, 2019SaveLearn
Phase transition of four-dimensional Ising model with higher-order tensor renormalization groupWe apply the higher-order tensor renormalization group (HOTRG) to the four-dimensional ferromagnetic Ising model, which has been attracting interests in the context of the triviality of the scalar…Shinichiro Akiyama, Yoshinobu Kuramashi, Takumi Yamashita et al.·Jun 14, 2019SaveLearn
Deuteron-like heavy dibaryons from Lattice QCDWe report the first lattice quantum chromodynamics (QCD) study of deuteron(np)-like dibaryons with heavy quark flavours. These include particles with following dibaryon structures and valence quark…Parikshit Junnarkar, Nilmani Mathur·Jun 14, 2019SaveLearn
Gauss law at a vertex in Lattice QCD and its gauge invariant Hilbert spaceWe solve the local Gauss law in lattice QCD in the presence of matter charges. This corresponds to constructing singlet states using Schwinger Bosons and Fermions of SU(3) group at each vertex of the…Sreeraj T P, Ramesh Anishetty·Jun 10, 2019SaveLearn
Study of the pseudoscalar glueball in J/ψ radiative decaysWe aim to explore the production rate of the pseudoscalar glueball in J/ψ radiative decay by lattice QCD in quenched approximation. The calculation is performed on three anisotropic lattices with…Long-Cheng Gui, Jia-Mei Dong, Ying Chen et al.·Jun 9, 2019SaveLearn
Nπ-state contamination in lattice calculations of the nucleon pseudoscalar form factorThe nucleon-pion-state contribution in the QCD 3-point function of the pseudoscalar density is calculated to leading order in chiral perturbation theory. It predicts a nucleon-pion-state…Oliver Bar·Jun 9, 2019SaveLearn
Non-perturbative determination of improvement coefficients bm and bA-bP and normalisation factor Zm*ZP/ZA with Nf=3 Wilson fermionsWe determine non-perturbatively the normalisation constant Zm*ZP/ZA as well as the Symanzik coefficients bm and bA-bP, required in O(a) improved quark mass renormalisation with Wilson fermions.…Giulia Maria de Divitiis, Patrick Fritzsch, Jochen Heitger et al.·Jun 8, 2019SaveLearn
Lattice field theory with torsionInspired by the duality between gravity and defects in crystals, we study lattice field theory with torsion. The torsion is realized by a line defect of a lattice, namely a dislocation. As the first…Shota Imaki, Arata Yamamoto·Jun 6, 2019SaveLearn
Partial wave decomposition on the lattice and its applications to the HAL QCD methodThe approximated partial wave decomposition method to the discrete data on a cubic lattice, developed by C. W. Misner, is applied to the calculation of S-wave hadron-hadron scatterings by the HAL…Takaya Miyamoto, Yutaro Akahoshi, Sinya Aoki et al.·Jun 5, 2019SaveLearn
B Dν at non-zero recoilThe current status of the lattice-QCD calculations of the form factors of the B Dν semileptonic decay is reviewed. Particular emphasis is given to the most mature calculation at…A. Vaquero, C. DeTar, A. X. El-Khadra et al.·Jun 3, 2019SaveLearn
Bs Ds ν Form Factors for the full q2 range from Lattice QCD with non-perturbatively normalized currentsWe present a lattice QCD determination of the Bs Ds ν scalar and vector form factors over the full physical range of momentum transfer. The result is derived from correlation functions…E. McLean, C. T. H. Davies, J. Koponen et al.·Jun 3, 2019SaveLearn
Continuum limit in numerical simulations of the N=2 Landau--Ginzburg modelThe N=2 Landau--Ginzburg description provides a strongly interacting Lagrangian realization of an N=2 superconformal field theory. It is conjectured that one such example is…Okuto Morikawa·Jun 3, 2019SaveLearn
Tensor network formulation of two dimensional gravityWe show how to formulate a lattice gauge theory whose naive continuum limit corresponds to two-dimensional (Euclidean) quantum gravity including a positive cosmological constant. More precisely the…Muhammad Asaduzzaman, Simon Catterall, Judah Unmuth-Yockey·May 30, 2019SaveLearn
A qubit regularization of the O(3) sigma modelWe construct a qubit regularization of the O(3) non-linear sigma model in two and three spatial dimensions using a quantum Hamiltonian with two qubits per lattice site. Using a worldline…Hersh Singh, Shailesh Chandrasekharan·May 30, 2019SaveLearn
How much do charm sea quarks affect the charmonium spectrum?The properties of charmonium states are or will be intensively studied by the B-factories Belle II and BESIII, the LHCb and PANDA experiments and at a future Super-c-tau Factory. Precise lattice…Salvatore Cali, Francesco Knechtli, Tomasz Korzec·May 30, 2019SaveLearn
Chiral phase transition in (2 + 1)-flavor QCDThe chiral phase transition temperature Tc0 is a fundamental quantity of QCD. To determine this quantity we have performed simulations of (2 + 1)-flavor QCD using the Highly Improved…Heng-Tong Ding, Prasad Hegde, Olaf Kaczmarek et al.·May 28, 2019SaveLearn
Unitarity of the infinite-volume three-particle scattering amplitude arising from a finite-volume formalismIn a previous publication, two of us derived a relation between the scattering amplitude of three identical bosons, M3, and a real function referred to as the divergence-free K matrix…Raúl A. Briceño, Maxwell T. Hansen, Stephen R. Sharpe et al.·May 27, 2019SaveLearn