Correlated Dirac eigenvalues around the transition temperature on Nτ=8 latticesWe investigate the criticality of chiral phase transition manifested in the first and second order derivatives of Dirac eigenvalue spectrum with respect to light quark mass in (2+1)-flavor lattice…Heng-Tong Ding, Wei-Ping Huang, Min Lin et al.·Dec 1, 2021SaveLearn
A physicist-friendly reformulation of the Atiyah-Patodi-Singer index (on a lattice)The Atiyah-Singer index theorem on a closed manifold is well understood and appreciated in physics. On the other hand, the Atiyah-Patodi-Singer index, which is an extension to a manifold with…Hidenori Fukaya·Dec 1, 2021SaveLearn
Holography for Ising spins on the hyperbolic planeMotivated by the AdS/CFT correspondence, we use Monte Carlo simulation to investigate the Ising model formulated on tessellations of the two-dimensional hyperbolic disk. We focus in particular on the…Muhammad Asaduzzaman, Simon Catterall, Jay Hubisz et al.·Nov 30, 2021SaveLearn
Coulomb corrections to pi-pi scatteringThe relationship between finite volume multi-hadron energy levels and matrix elements and two particle scattering phase shifts and decays is well known, but the inclusion of long range interactions…Norman Christ, Xu Feng, Joseph Karpie et al.·Nov 30, 2021SaveLearn
Flavor number dependence of QCD at finite density by the complex Langevin methodWe discuss the flavor number dependence of QCD at low temperature and high density by the complex Langevin method. In our previous work, the complex Langevin method is confirmed to satisfy the…Yusuke Namekawa, Yuhma Asano, Yuta Ito et al.·Nov 30, 2021SaveLearn
Recent progress on nucleon form factorsThe form factors of the nucleon provide key information on nucleon properties. When confronted with precisely measured observables from experiments, they serve as benchmark quantities for lattice…Dalibor Djukanovic·Nov 30, 2021SaveLearn
Isovector Axial Vector Form Factors of the Nucleon from Lattice QCD with Nf=2+1 O(a)-improved Wilson FermionsWe present the analysis of isovector axial vector nucleon form factors on a set of Nf=2+1 CLS ensembles with O(a)-improved Wilson fermions and L\"uscher-Weisz gauge action. The set of…Dalibor Djukanovic, Georg von Hippel, Jonna Koponen et al.·Nov 30, 2021SaveLearn
Equation of state of QCD at finite chemical potential from an alternative expansion schemeThe equation of state of Quantum Chromodynamics (QCD) at finite density is currently known only in a limited range in the baryon chemical potential μB. This is due to fundamental shortcomings of…Paolo Parotto, Szabolcs Borsanyi, Zoltan Fodor et al.·Nov 30, 2021SaveLearn
Thimble regularisation of YM fields: crunching a hard problemThimble regularisation of Yang Mills theories is still to a very large extent terra incognita. We discuss a couple of topics related to this big issue. 2d YM theories are in principle good candidates…Francesco Di Renzo, Simran Singh, Kevin Zambello·Nov 30, 2021SaveLearn
Dual Polyakov loop model at finite density: phase diagram and screening massesWe consider a dual representation of an effective three-dimensional Polyakov loop model for the SU(3) theory at nonzero real chemical potential. This representation is free of the sign problem and…Oleg Borisenko, Volodymyr Chelnokov, Emanuele Mendicelli et al.·Nov 30, 2021SaveLearn
Lattice QCD at Imaginary Chemical Potential in the Chiral LimitWe report on an ongoing study on the interplay between Roberge-Weiss (RW) and chiral transitions in simulations of (2+1)-flavor QCD with an imaginary chemical potential. We established that the RW…D. A. Clarke, Jishnu Goswami, F. Karsch et al.·Nov 30, 2021SaveLearn
A new framework to tune an improved relativistic heavy-quark actionWe introduce a new non-perturbative method to tune the parameters of the Columbia formulation of an anisotropic, clover-improved relativistic heavy-quark (RHQ) action. By making use of suitable…Davide Giusti, Christoph Lehner·Nov 30, 2021SaveLearn
Investigations of decuplet baryons from meson-baryon interactions in the HAL QCD methodWe study decuplet baryons from meson-baryon interactions, in particular, and baryons from P-wave I=3/2 Nπ and I=0 K interactions, respectively. The interaction…Kotaro Murakami, Yutaro Akahoshi, Sinya Aoki et al.·Nov 30, 2021SaveLearn
Exotics in the π D systemIn this proceedings we consider several states, namely the D*s0(2317), Ds1(2460), D*0(2300) and D1(2430), which appear to defy description as simple quark-antiquark pairs.…Eric B. Gregory, Feng-Kun Guo, Christoph Hanhart et al.·Nov 30, 2021SaveLearn
Scattering from generalised lattice φ4 theoryWe investigate numerically different techniques to extract scattering amplitudes from the Euclidean Lattice φ4 theory with two fields, having different masses. We present an exploratory study of…Marco Garofalo, Fernando Romero-López, Akaki Rusetsky et al.·Nov 30, 2021SaveLearn
In-medium static quark potential from spectral functions on realistic HISQ ensemblesWe explore the interactions between a quark anti-quark pair in a thermal medium based on lattice QCD ensembles with Nf = 2+1 dynamical HISQ flavors. Our dataset spans the phenomenologically…Gaurang Parkar, Dibyendu Bala, Olaf Kaczmarek et al.·Nov 30, 2021SaveLearn
QCD topology and axion's properties from Wilson twisted mass lattice simulationsWe present the results on topological susceptibility and chiral observables in Nf=2+1+1 QCD for temperature range 120<T<600 MeV. The lattice simulations are performed with Wilson twisted mass…A. Yu. Kotov, M. P. Lombardo, A. Trunin·Nov 30, 2021SaveLearn
Quark mass RG-running for Nf =3 QCD in a SF setupWe compute the nonperturbative quark mass RG-running in the range QCDμ MW for Nf=3 massless QCD with a mixed action approach: sea quarks are regularised using…Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis et al.·Nov 30, 2021SaveLearn
Mixed adjoint-fundamental matter and applications towards SQCD and beyondGauge theories with fermions in adjoint and fundamental representations are relevant for many different applications including composite Higgs models and general aspects of the confinement problem.…Georg Bergner, Stefano Piemonte·Nov 30, 2021SaveLearn
Window contributions to the muon hadronic vacuum polarization with twisted-mass fermionsWe present a lattice calculation of the Euclidean position-space windows contributing to the leading-order hadronic vacuum polarization term of the muon anomalous magnetic moment aμ. Short-,…Davide Giusti, Silvano Simula·Nov 30, 2021SaveLearn
Renormalization \& improvement of the tensor operator for Nf=3 QCD in a setupWe present preliminary results of the non-perturbative renormalization group (RG) running of the flavor non-singlet tensor operator. We employ the scheme for Nf=3 QCD using ensembles…Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis et al.·Nov 30, 2021SaveLearn
A Fresh Look at the Chemical Potential on the LatticeLattice techniques are the most reliable ones to investigate the QCD phase diagram in the temperature-baryon density (chemical potential) plane. These techniques are, however, well-known to be…Rajiv V. Gavai·Nov 30, 2021SaveLearn
Spectral sum from Euclidean lattice correlators and determination of renormalization constantsWe propose a new method to renormalize lattice operators. The method is based on the technique to compute the spectral sum appearing in the Shifman-Vainshtein-Zakharov QCD sum rule from lattice…Tsutomu Ishikawa, Shoji Hashimoto, Takashi Kaneko·Nov 30, 2021SaveLearn
N inclusive scattering cross sections on the latticeUtilizing the approach recently proposed for the N inclusive scattering cross section on the lattice, we compute the differential scattering cross section for the charged current process $…Jun-Sik Yoo, Shoji Hashimoto, Hiroshi Ohki·Nov 30, 2021SaveLearn
Quark-diquark potential and diquark mass from Lattice QCDWe propose a new application of lattice QCD to calculate the quark-diquark potential, diquark mass and quark mass required for the diquark model. As a concrete example, we consider the c…Kai Watanabe·Nov 30, 2021SaveLearn