The observable spectrum for GUT-like theoriesThe spectrum of nonabelian gauge theories cannot be described in terms of elementary particles, and so must be constructed from gauge-invariant composite operators, even in the presence of a…Elizabeth Dobson, Axel Maas, Simon Plätzer et al.·Jan 31, 2025SaveLearn
Grassmann tensor approach for two-dimensional QCD in the strong-coupling expansionWe present a tensor-network approach for the strong-coupling expansion of two-dimensional QCD with staggered quarks at non-zero chemical potential. After expanding the Boltzmann factor in the gauge…Thomas Samberger, Jacques Bloch, Robert Lohmayer·Jan 31, 2025SaveLearn
Reconstruction of the vector meson propagator using a generalized eigenvalue problemFor long distances in the euclidean time the vector-vector correlator () has an exponentially decreasing signal-to-noise ratio. However, the vector correlator not only consists of the vector…Fabian Frech, Finn Stokes, Kalman Szabo·Jan 31, 2025SaveLearn
SymEFT for local tastes of staggered lattice QCDThe applicability of Symanzik Effective Field Theory (SymEFT) for the description of lattice artifacts assumes a local formulation of the lattice theory. We discuss the symmetries realised by tastes…Nikolai Husung·Jan 31, 2025SaveLearn
The Physicist's Guide to the HMCThe hybrid Monte Carlo (HMC) algorithm is arguably the most efficient sampling method for general probability distributions of continuous variables. Together with exact Fourier acceleration (EFA) the…Johann Ostmeyer·Jan 31, 2025SaveLearn
Results on meson-meson scattering at large NcWe present results on the large Nc scaling of meson-meson scattering amplitudes. We work in a theory with Nf=4 degenerate quark flavors and run lattice simulations with…Jorge Baeza-Ballesteros, Pilar Hernández, Fernando Romero-López·Jan 31, 2025SaveLearn
Finite density lattice QCD via effective Polyakov loop theoriesFor the exploration of the phase diagram of QCD, effective Polyakov loop theories derived from lattice QCD provide a valuable tool in the heavy quark mass regime. Using mean field approximations…Christoph Konrad, Owe Philipsen·Jan 31, 2025SaveLearn
B→ D(*) decays from Nf=2+1+1 highly improved staggered quarks and clover b-quark in the Fermilab interpretationWe present an update on the analysis of semileptonic B→ D(*) decays at non-zero recoil. Our computation employs 2 + 1 + 1 FNAL-MILC ensembles with highly improved staggered quark…Pietro Butti, Carleton DeTar, Aida El-Khadra et al.·Jan 31, 2025SaveLearn
Computing theta-dependent mass spectrum of the 2-flavor Schwinger model in the Hamiltonian formalismWe compute the θ-dependent mass spectrum of the 2-flavor Schwingr model using the tensor network (DMRG) in the Hamiltonian formalism. The pion and the sigma meson are identified as stable…Akira Matsumoto, Etsuko Itou, Yuya Tanizaki·Jan 31, 2025SaveLearn
Novel Lattice Formulation of 2D Chiral Gauge Theory via BosonizationRecently, lattice formulations of 2D Abelian chiral gauge theory have been constructed based on Abelian bosonization. It is remarkable about these 2D lattice formulations that they reproduce the same…Okuto Morikawa, Soma Onoda, Hiroshi Suzuki·Jan 31, 2025SaveLearn
Two-color lattice QCD in (1+1) dimensions with Grassmann tensor renormalization groupThe (1+1)-dimensional two-color lattice QCD is studied with the Grassmann tensor renormalization group. We construct tensor network representations of theories with the staggered fermion and the…Kwok Ho Pai, Shinichiro Akiyama, Synge Todo·Jan 31, 2025SaveLearn
Finite-size scaling of Lee-Yang zeros and its application to the 3-state Potts model and heavy-quark QCDWe propose a new general method to study critical points (CP) using the finite-size scaling of Lee-Yang zeros (LYZ). We first study the LYZ in the three-dimensional Ising model on finite lattices. We…Tatsuya Wada, Masakiyo Kitazawa, Kazuyuki Kanaya·Jan 31, 2025SaveLearn
First-order phase transitions in the heavy quark region of lattice QCD at high temperatures and high densitiesIf there is a first-order phase transition in the light quark region of 2+1-flavor finite temperature and density QCD and if the region of the first-order phase transition expands with increasing…Shinji Ejiri·Jan 31, 2025SaveLearn
Towards more accurate B(s)→π(K) and D(s)→π(K) form factorsWe present progress on the calculation of scalar, vector, and tensor form factors for the following meson decays: B→π, Bs→ K, D→π and Ds→ K. This…Logan Roberts, Chris Bouchard, Olmo Francesconi et al.·Jan 30, 2025SaveLearn
Scale setting of SU(N) Yang-Mills theories via Twisted Gradient FlowWe present preliminary results for the scale setting of SU(N) Yang-Mills theories using twisted boundary conditions and the gradient-flow scale t0. The end goal of this study is…Claudio Bonanno, Jorge Luis Dasilva Golán, Massimo D'Elia et al.·Jan 30, 2025SaveLearn
Scattering of SIMPlectic Dark PionsWe study the scattering of two identical pNGBs (pseudo-Nambu-Goldstone Bosons) in Sp(4) gauge theory with two mass-degenerate Dirac fermions in the pseudo-real fundamental representation. This theory…Yannick Dengler, Axel Maas, Fabian Zierler·Jan 30, 2025SaveLearn
Split-even approach to the rare kaon decay K π + -In recent years the rare kaon decay has been computed directly at the physical point. However, this calculation is currently limited by stochastic noise stemming from a light and charm quark loop GIM…Raoul Hodgson, Vera Gülpers, Ryan Hill et al.·Jan 30, 2025SaveLearn
Tensor-network toolbox for probing dynamics of non-Abelian gauge theoriesTensor-network methods enable probing dynamics of strongly interacting quantum many-body systems, including gauge theories, via Hamiltonian simulation, hence bypassing sign problems. They also have…Emil Mathew, Navya Gupta, Saurabh V. Kadam et al.·Jan 30, 2025SaveLearn
Normalizing flows for SU(N) gauge theories employing singular value decompositionWe present a progress report on the use of normalizing flows for generating gauge field configurations in pure SU(N) gauge theories. We discuss how the singular value decomposition can be used to…Javad Komijani, Marina K. Marinkovic·Jan 30, 2025SaveLearn
The perturbative computation of the gradient flow coupling for the twisted Eguchi-Kawai model with the numerical stochastic perturbation theoryThe gradient flow method is a renormalization scheme in which the gauge field is flowed by the diffusion equation. The gradient flow scheme has benefits that the observables composed of flowed gauge…Hironori Takei, Ken-Ichi Ishikawa, Masanori Okawa·Jan 30, 2025SaveLearn
SU(6) model revisitedWe discuss the vacuum structure of the SU(6) model, a chiral gauge theory, from the perspective of anomaly matching. To this end, we first identify all possible 't Hooft anomalies in the UV theory…Tetsuya Onogi, Hiroki Wada, Tatsuya Yamaoka·Jan 30, 2025SaveLearn
Discrete symmetry and 't Hooft anomalies for 3450 modelWe report our study of the discrete symmetry for lattice 3450 model proposed by Wang and Wen. Lattice 3450 model is expected to describe the anomaly free chiral U(1) gauge theory in 1+1 dimension…Tetsuya Onogi, Hiroki Wada, Tatsuya Yamaoka·Jan 30, 2025SaveLearn
I =1/2 process of Kππ decay on multiple ensembles with periodic boundary conditionsWe present our preliminary results for the I = 1/2 matrix elements of Kππ decay and ', the measure of direct CP violation in Kππ, computed on multiple…Masaaki Tomii·Jan 30, 2025SaveLearn
Update on two-level sampling for glueball observables in quenched QCDWe report our progress in combining a two-level sampling algorithm with distillation techniques for calculations of disconnected diagrams in quenched QCD. The simulations are performed on a single…Lorenzo Barca, Jacob Finkenrath, Francesco Knechtli et al.·Jan 29, 2025SaveLearn
The spatial string tension and its effects on screening correlators in a thermal QCD plasmaWe calculate the spatial Wilson line correlator for 2+1 flavor QCD using highly improved staggered quark discretization for fermions and in quenched QCD for a wide range of temperatures, from the…Dibyendu Bala, Olaf Kaczmarek, Peter Petreczky et al.·Jan 29, 2025SaveLearn