Vud radiative corrections with lattice inputWe will describe several pioneering efforts in the study of electromagnetic radiative corrections to semileptonic decay processes, with particular emphasis on the role of lattice QCD. These studies…Chien-Yeah Seng·Apr 6, 2021SaveLearn
The pion and kaon x3 from lattice QCD and PDF reconstruction from Mellin momentsWe present a calculation of the pion and kaon Mellin moment x3 extracted directly in lattice QCD using a three-derivative local operator. We use one ensemble of gauge…Constantia Alexandrou, Simone Bacchio, Ian Cloët et al.·Apr 6, 2021SaveLearn
Quantum algorithms for transport coefficients in gauge theoriesIn the future, ab initio quantum simulations of heavy ion collisions may become possible with large-scale fault-tolerant quantum computers. We propose a quantum algorithm for studying these…Thomas D. Cohen, Henry Lamm, Scott Lawrence et al.·Apr 5, 2021SaveLearn
Nπ-state contamination in lattice calculations of the nucleon electromagnetic form factorsThe nucleon-pion-state contribution to QCD two-point and three-point functions relevant for lattice calculations of the nucleon electromagnetic form factors are studied in chiral perturbation theory.…Oliver Bar, Haris Colic·Apr 1, 2021SaveLearn
Towards the continuum limit of a (1+1)d quantum link Schwinger modelThe solution of gauge theories is one of the most promising applications of quantum technologies. Here, we discuss the approach to the continuum limit for U(1) gauge theories regularized via…Torsten V. Zache, Maarten Van Damme, Jad C. Halimeh et al.·Mar 31, 2021SaveLearn
Quark flavor physics and lattice QCDFor a long time, investigation into the weak interactions of quarks has guided us toward understanding the Standard Model we know today. Now in the era of high precision, these studies are still one…Matthew Wingate·Mar 31, 2021SaveLearn
Determination of the Collins-Soper Kernel from Lattice QCDWe present lattice results for the non-perturbative Collins-Soper (CS) kernel, which describes the energy-dependence of transverse momentum-dependent parton distributions (TMDs). The CS kernel is…Maximilian Schlemmer, Alexey Vladimirov, Christian Zimmermann et al.·Mar 31, 2021SaveLearn
Searching for continuous phase transitions in 5D SU(2) lattice gauge theoryWe study the phase diagram of 5-dimensional SU(2) Yang-Mills theory on the lattice. We consider two extensions of the fundamental plaquette Wilson action in the search for the continuous phase…Adrien Florio, João M. Viana P. Lopes, José Matos et al.·Mar 28, 2021SaveLearn
Lattice determination of I= 0 and 2 ππ scattering phase shifts with a physical pion massPhase shifts for s-wave ππ scattering in both the I=0 and I=2 channels are determined from a lattice QCD calculation performed on 741 gauge configurations obeying G-parity boundary…T. Blum, P. A. Boyle, M. Bruno et al.·Mar 28, 2021SaveLearn
Generalization capabilities of translationally equivariant neural networksThe rising adoption of machine learning in high energy physics and lattice field theory necessitates the re-evaluation of common methods that are widely used in computer vision, which, when applied…Srinath Bulusu, Matteo Favoni, Andreas Ipp et al.·Mar 26, 2021SaveLearn
Recent theoretical developments on QCD matter at finite temperature and densityQCD matter at finite temperature and density is a subject that has witnessed very impressive theoretical developments in the recent years. In this review I will discuss some new insights on the…Sayantan Sharma·Mar 25, 2021SaveLearn
Nucleon isovector scalar charge from overlap fermionsWe calculate the nucleon isovector scalar charge in lattice QCD using overlap fermions on five ensembles of gauge configurations generated by the RBC/UKQCD collaboration using the domain-wall quark…Liuming Liu, Ting Chen, Terrence Draper et al.·Mar 24, 2021SaveLearn
Two-dimensional lattice SU(Nc) gauge theories with multiflavor adjoint scalar fieldsWe consider two-dimensional lattice SU(Nc) gauge theories with Nf real scalar fields transforming in the adjoint representation of the gauge group and with a global O(Nf) invariance.…Claudio Bonati, Alessio Franchi, Andrea Pelissetto et al.·Mar 23, 2021SaveLearn
Hamiltonian effective field theory in elongated or moving finite volumeWe extend previous work concerning rest-frame partial-wave mixing in Hamiltonian effective field theory to both elongated and moving systems, where two particles are in a periodic elongated cube or…Yan Li, Jia-jun Wu, Derek B. Leinweber et al.·Mar 23, 2021SaveLearn
Gauge covariant neural network for quarks and gluonsWe propose gauge-covariant neural networks along with a specialized training algorithm for lattice QCD, designed to handle realistic quarks and gluons in four-dimensional space-time. We show that the…Yuki Nagai, Akio Tomiya·Mar 22, 2021SaveLearn
K\"all\'en-Lehmann Spectral Representation of the Scalar SU(2) GlueballThe estimation of the K\"all\'en-Lehmann spectral density from gauge invariant lattice QCD two point correlation functions is proposed, and explored via an appropriate inversion method. As proof of…David Dudal, Orlando Oliveira, Martin Roelfs·Mar 22, 2021SaveLearn
Persistent homology analysis for dense QCD effective model with heavy quarksThe isospin chemical potential region is known as the sign-problem free region of quantum chromodynamics (QCD). In this paper, we introduce the isospin chemical potential to the three-dimensional…Kouji Kashiwa, Takehiro Hirakida, Hiroaki Kouno·Mar 22, 2021SaveLearn
Lattice QCD calculation of K '+ '- decay widthWe develop a methodology for the computation of the K '+ '- decay width using lattice QCD and present an exploratory study here. We use a scalar function method to account…Xin-Yu Tuo, Xu Feng, Lu-Chang Jin et al.·Mar 21, 2021SaveLearn
Investigating the conformal behaviour of SU(2) with one adjoint Dirac flavorWe present a major update on our investigations of SU(2) gauge theory with one Dirac flavor in the adjoint representation on the lattice. In particular we consider larger volumes, as well as four…Andreas Athenodorou, Ed Bennett, Georg Bergner et al.·Mar 18, 2021SaveLearn
Stochastic computation of g-2 in QEDWe perform a numerical computation of the anomalous magnetic moment (g-2) of the electron in QED by using the stochastic perturbation theory. Formulating QED on the lattice, we develop a method to…Ryuichiro Kitano, Hiromasa Takaura, Shoji Hashimoto·Mar 18, 2021SaveLearn
Parton physics from a heavy-quark operator product expansion: Formalism and Wilson coefficientsParton distribution functions (PDFs) and light-cone distribution amplitudes (LCDAs) are central non-perturbative objects of interest in high-energy inelastic and elastic scattering, respectively. As…William Detmold, Anthony V. Grebe, Issaku Kanamori et al.·Mar 17, 2021SaveLearn
Optimisation of complex integration contours at higher orderWe continue our study of contour deformation as a practical tool for dealing with the sign problem using the d-dimensional Bose gas with non-zero chemical potential as a toy model. We derive…Francis Bursa, Michael Kroyter·Mar 16, 2021SaveLearn
b c*(2595,2625)- form factors from lattice QCDWe present the first lattice-QCD determination of the form factors describing the semileptonic decays b c*(2595)- and $b …Stefan Meinel, Gumaro Rendon·Mar 16, 2021SaveLearn
SU(2) lattice gauge theory on a quantum annealerLattice gauge theory is an essential tool for strongly interacting non-Abelian fields, such as those in quantum chromodynamics where lattice results have been of central importance for several…Sarmed A Rahman, Randy Lewis, Emanuele Mendicelli et al.·Mar 15, 2021SaveLearn
Quark Density in Lattice QC2D at Imaginary and Real Chemical PotentialWe study lattice two-color QCD (QC2D) with two flavors of staggered fermions at imaginary and real quark chemical potential μq and T>Tc. We employ various methods of extrapolation of the…A. Begun, V. G. Bornyakov, N. V. Gerasimeniuk et al.·Mar 12, 2021SaveLearn