String-breaking statics and dynamics in a (1+1)D SU(2) lattice gauge theoryString breaking is at the core of hadronization models of relevance to particle colliders. Yet, studies of string-breaking dynamics rooted in quantum chromodynamics remain fundamentally challenging.…Navya Gupta, Emil Mathew, Saurabh V. Kadam et al.·Mar 25, 2026SaveLearn
Ground-State Extraction of Heavy-Light Meson Semileptonic Decay Form FactorsWe discuss the extraction of heavy-light pseudo-scalar to light pseudo-scalar decay form factors from finite time correlation functions. We place particular emphasis on the contamination from excited…Antonino D'Anna, Alessandro Conigli, Patrick Fritzsch et al.·Mar 25, 2026SaveLearn
Order-separated tensor-network method for QCD in the strong-coupling expansionWe introduce the order-separated Grassmann higher-order tensor renormalization group (OS-GHOTRG) method for QCD with staggered quarks in the strong-coupling expansion. The method allows us to…Thomas Samberger, Jacques Bloch, Robert Lohmayer et al.·Mar 25, 2026SaveLearn
A first study of strong isospin breaking effects in lattice QCD using truncated polynomialsComputing derivatives of observables with respect to parameters of the theory is a powerful tool in lattice QCD, as it allows the study of physical effects not directly accessible in the original…David Albandea, Simon Kuberski, Fernando P. Panadero·Mar 25, 2026SaveLearn
B π, B(s) D(s) from 2+1+1 Flavor Lattice QCDWe present a lattice-QCD calculation of the hadronic form factors for B-meson semileptonic decays computed using the highly improved staggered quark action for both valence and sea quarks on the…Nicholas Cassar, Akhil Chauhan, Carleton DeTar et al.·Mar 24, 2026SaveLearn
Towards four-pion effects in multi-hadron decaysThe rigorous treatment of four-particle intermediate and final states poses a major challenge for lattice calculations of scattering and decay amplitudes, as well as long-distance matrix elements. As…Rajnandini Mukherjee, Maxwell T. Hansen·Mar 24, 2026SaveLearn
A kernel-derived orthogonal basis for spectral functions from Euclidean correlatorsSpectral functions play a central role in the characterization of a wide range of physical systems, including strongly interacting quantum field theories and many-body systems. Their non-perturbative…Norikazu Yamada·Mar 24, 2026SaveLearn
Topological susceptibility and QCD phase transition with 2+1 flavor M\"obius domain wall fermion at finite temperatureThe topological susceptibility is one of the quantities that has a large discretization error, and the error can be sensitive to the choice of fermion action. We report on our results from physical…Issaku Kanamori, Yasumichi Aoki, Hidenori Fukaya et al.·Mar 24, 2026SaveLearn
Structure of QC2D ground state fields at nonzero matter densitiesA quantitative investigation into the modification of ground-state field structures in two-color QCD (QC2D) is presented at finite chemical potential. Using lattice simulations with Wilson gauge…Ragib F. Hasan, Matthew Cummins, Waseem Kamleh et al.·Mar 24, 2026SaveLearn
Automated Extraction of Collins-Soper Kernel from Lattice QCD using An Autonomous AI Physicist SystemWe employ PhysMaster, an autonomous agentic AI system integrating theoretical reasoning, numerical computation, and exploitation strategies towards ultra-long horizon automation, to tackle…Jin-Xin Tan, Ting-Jia Miao, Mu-Hua Zhang et al.·Mar 23, 2026SaveLearn
Exact center symmetry and first-order phase transition in QCD with three degenerate dynamical quarksWe study QCD with three degenerate flavors of dynamical quarks using first-principles lattice simulations. For a specific choice of imaginary isospin chemical potential, this theory possesses an…Gergely Endrodi, Guy D. Moore, Adam Pieczynski et al.·Mar 23, 2026SaveLearn
Towards determination of the strong coupling αs(mZ) from four-flavor lattice QCD using the continuous β-function methodThe precise value of the strong coupling αs(mZ) at the Z-boson mass mZ is essential for high-energy phenomenology and precision tests of quantum chromodynamics (QCD). We present the…Yash Mandlecha, Alexei Bazavov, Akhil Chauhan et al.·Mar 22, 2026SaveLearn
The Casimir Effect for Lattice FermionsThe Casimir effect for photons and Dirac fermion fields, and its generalization to (D+1)-dimensional spacetime in the continuum, is studied. We implement MIT bag boundary conditions on the lattice…Yash V. Mandlecha·Mar 21, 2026SaveLearn
Charmonium-Glueball spectroscopy with improved hadron creation operatorsConstruction of creation operators which can properly sample the underlying energy eigenstates remains a fundamental first step in lattice QCD spectroscopy calculations, particularly when the…Juan Andrés Urrea-Niño, Francesco Knechtli, Tomasz Korzec et al.·Mar 20, 2026SaveLearn
On the phase structure of massless many-flavour QCD with staggered fermionsWhen the number of massless fermions exceeds a critical value Nf*, QCD enters the conformal window and becomes chirally symmetric already in the vacuum. Determining Nf* from lattice…Jan Philipp Klinger, Reinhold Kaiser, Owe Philipsen et al.·Mar 20, 2026SaveLearn
Real radiative decays of heavy pseudoscalar mesonsWe report our ongoing lattice QCD study of radiative leptonic decays of the charged pseudoscalar mesons D, Ds, B, and Bc γ. We carry out our analysis on a single…Teseo San Jose, Yasumichi Aoki, Matteo Di Carlo et al.·Mar 20, 2026SaveLearn
Strange partner of Tcc+ from lattice QCD in D(*)Ds(*) scatteringWe report on our lattice QCD study of coupled DDs* - D*Ds scattering in the JP=1+ channel and elastic DDs scattering in the JP=0+ channel, aimed at investigating the possible…Tanishk Shrimal, Sara Collins, Priyajit Jana et al.·Mar 20, 2026SaveLearn
Vector-channel scattering of dark particles in a Sp(4) gauge theoryWe report new results obtained in our lattice studies of the Sp(4) gauge theory coupled to two fundamental Dirac fermions. This theory provides a candidate for the dynamical origin of dark matter…Jong-Wan Lee, Ed Bennett, Yannick Dengler et al.·Mar 20, 2026SaveLearn
Spectral reconstruction techniques, their shortcomings and relevance to the electric conductivity coefficientSpectral reconstruction is a well studied numerically ill-posed problem which arises due to the relation of the Euclidean correlator to the spectral function via an inhomogeneous Fredholm equation of…C. Andratschke, B. B. Brandt, E. Garnacho-Velasco et al.·Mar 19, 2026SaveLearn
The smeared R-ratio in isoQCD from first-principles lattice simulationsThe R-ratio is a phenomenological observable of great relevance, both in itself and in applications such as the dispersive approach to the muon anomalous magnetic moment. It can be investigated…Francesca Margari, Simone Bacchio, Alessandro De Santis et al.·Mar 19, 2026SaveLearn
Doubly Bottom and Bottom-Strange Tetraquarks in the Isoscalar ChannelWe present our recent investigation on doubly bottom and bottom-strange tetraquarks in the isoscalar channel in search of a possible tetraquark bound state. The calculations are performed on four…Bhabani Sankar Tripathy, Nilmani Mathur, M. Padmanath·Mar 19, 2026SaveLearn
Hadronic screening masses in thermal QCD up to the electroweak scaleNovel theoretical and computational strategies have opened the possibility of exploring thermal QCD at the non-perturbative level at unprecedented temperatures, reaching from the GeV scale up to the…Marco Cè, Leonardo Giusti, Michele Pepe et al.·Mar 19, 2026SaveLearn
K π scattering as a step towards B K* + - from Lattice QCDRare b s+- decays provide some of the most sensitive tests of the Standard Model and require precise and systematically improvable hadronic input from lattice QCD. For the…Felix Erben, Matthew Black, Peter Boyle et al.·Mar 18, 2026SaveLearn
Parameter Optimization of Domain-Wall Fermion using Machine LearningWe study a parameter optimization of domain-wall fermions to improve chiral symmetry based on machine learning. Domain-wall fermions involve coefficients along the fifth dimension, which can be…Shunsuke Yasunaga, Kenta Yoshimura, Akio Tomiya et al.·Mar 17, 2026SaveLearn
Lattice QCD study of the K*(892) resonance at the physical pointWe present a lattice QCD study of the K*(892) resonance using eight Nf=2+1 Wilson-Clover ensembles with three lattice spacings and six pion masses ranging from 135 to 320 MeV. For each…Qu-Zhi Li, Chuan Liu, Liuming Liu et al.·Mar 17, 2026SaveLearn