Tcc+(3875) relevant DD* scattering from Nf=2 lattice QCDThe S-wave DD* scattering in the isospin I=0,1 channels is studied in Nf=2 lattice QCD at mπ≈ 350 MeV. It is observed that the DD* interaction is repulsive in the I=1…Siyang Chen, Chunjiang Shi, Ying Chen et al.·Jun 13, 2022SaveLearn
Weak Coupling Limit of U(1) Lattice Model in Fourier BasisThe transfer-matrix of the U(1) lattice model is considered in the Fourier basis and in the weak coupling limit. The issues of Gauss law constraint and gauge invariant states are addressed in the…Afsaneh Kianfar, Amir H. Fatollahi·Jun 10, 2022SaveLearn
Searching for the QCD critical point along the pseudo-critical/freeze-out line using Pad\'e-resummed Taylor expansions of cumulants of conserved charge fluctuationsUsing high-statistics datasets generated in (2+1)-flavor QCD calculations at finite temperature we construct estimators for the radius of convergence from an eighth order series expansion of the…Jishnu Goswami, Frithjof Karsch, Swagato Mukherjee et al.·Jun 9, 2022SaveLearn
The 3d O(4) model as an effective approach to the QCD phase diagramThe QCD phase diagram is one of the most prominent outstanding puzzles within the Standard Model. Various experiments, which aim at its exploration beyond small baryon density, are operating or in…Edgar López-Contreras, José Antonio García-Hernández, Elías Natanael Polanco-Euán et al.·Jun 9, 2022SaveLearn
Determination of mc from Nf = 2+1 QCD with Wilson fermionsWe present preliminary results for the charm quark mass in the Nf=4 RGI scheme. These were obtained using Nf=2+1 CLS ensembles with O(a) non-perturbatively improved Wilson fermions.…Gunnar Bali, Sjoerd Bouma, Sara Collins et al.·Jun 8, 2022SaveLearn
Pion distribution amplitude at the physical point using the leading-twist expansion of the quasi-distribution-amplitude matrix elementWe present a lattice QCD determination of the distribution amplitude (DA) of the pion and the first few Mellin moments from an analysis of the quasi-DA matrix element within the leading-twist…Xiang Gao, Andrew D. Hanlon, Nikhil Karthik et al.·Jun 8, 2022SaveLearn
Logarithmic corrections to O(a) and O(a2) effects in lattice QCD with Wilson or Ginsparg-Wilson quarksWe derive the asymptotic lattice spacing dependence an[2b0g2(1/a)]i relevant for spectral quantities of lattice QCD, when using Wilson, O(a) improved Wilson or…Nikolai Husung·Jun 7, 2022SaveLearn
Static Energy in (2+1+1)-Flavor Lattice QCD: Scale Setting and Charm EffectsWe present results for the static energy in (2+1+1)-flavor QCD over a wide range of lattice spacings and several quark masses, including the physical quark mass, with ensembles of…TUMQCD Collaboration, Nora Brambilla, Rafael L. Delgado et al.·Jun 7, 2022SaveLearn
Study of three-flavored heavy dibaryons using lattice QCDWe present results of the first lattice QCD calculation of three-flavored heavy dibaryons both in the flavor-symmetric and antisymmetric channels. These dibaryons have spin zero, and are constructed…Parikshit Junnarkar, Nilmani Mathur·Jun 6, 2022SaveLearn
Heavy quark diffusion coefficient with gradient flowWe calculate chromo-electric and chromo-magnetic correlators in quenched QCD at 1.5Tc and 104 Tc with the aim to estimate the heavy quark diffusion coefficient at leading order in the inverse…Nora Brambilla, Viljami Leino, Julian Mayer-Steudte et al.·Jun 6, 2022SaveLearn
Radiative Decay Width of J/ γ η(2) from Nf=2 Lattice QCDThe large radiative production rate for pseudoscalar mesons in the J/ radiative decay remains elusive. We present the first lattice QCD calculation of partial decay width of J/…Xiangyu Jiang, Feiyu Chen, Ying Chen et al.·Jun 6, 2022SaveLearn
Impact of Dynamical Fermions on the Centre Vortex Gluon PropagatorThe impact of SU(3) centre vortices on the Landau-gauge gluon propagator is calculated in the presence of dynamical fermions and compared to the pure Yang-Mills case. The presence of dynamical…James Biddle, Waseem Kamleh, Derek Leinweber·Jun 6, 2022SaveLearn
Semi-vortices and cluster-vorticity: new concepts in the Berezinskii-Kosterlitz-Thouless phase transitionThe Berezinskii-Kosterlitz-Thouless (BKT) essential phase transition in the 2d XY model is revisited. Its mechanism is usually described by the (un)binding of vortex--anti-vortex (V--AV) pairs, which…Brandon Gómez Bravo, Bryan D. Juárez Hernández, Wolfgang Bietenholz·Jun 3, 2022SaveLearn
Lattice QCD calculation of light sterile neutrino contribution in 02β decayWe present a lattice QCD study of the neutrinoless double beta decay involving light sterile neutrinos. The calculation is performed at physical pion mass using five gauge ensembles generated with…Xin-Yu Tuo, Xu Feng, Lu-Chang Jin·Jun 2, 2022SaveLearn
Comment on the subtlety of defining real-time path integral in lattice gauge theoriesRecently, Hoshina, Fujii, and Kikukawa pointed out that the naive lattice gauge theory action in Minkowski signature does not result in a unitary theory in the continuum limit, and Kanwar and Wagman…Nobuyuki Matsumoto·Jun 2, 2022SaveLearn
Static quark potential from centre vortices in the presence of dynamical fermionsFor the first time, centre vortices are identified on SU(3) lattice ensembles that include dynamical fermions. Using a variational method, the static quark potential is calculated on untouched,…James Biddle, Waseem Kamleh, Derek Leinweber·Jun 2, 2022SaveLearn
Grassmann higher-order tensor renormalization group approach for two-dimensional strong-coupling QCDWe present a tensor-network approach for two-dimensional strong-coupling QCD with staggered quarks at nonzero chemical potential. After integrating out the gauge fields at infinite coupling, the…Jacques Bloch, Robert Lohmayer·Jun 1, 2022SaveLearn
A lattice QCD perspective on weak decays of b and c quarks Snowmass 2022 White PaperLattice quantum chromodynamics has proven to be an indispensable method to determine nonperturbative strong contributions to weak decay processes. In this white paper for the Snowmass community…Peter A. Boyle, Bipasha Chakraborty, Christine T. H. Davies et al.·May 30, 2022SaveLearn
Search for b b u s and b c u d tetraquark bound states using lattice QCDWe use lattice QCD to investigate the existence of strong-interaction-stable antiheavy-antiheavy-light-light tetraquarks. We study the b b u s system with quantum numbers JP = 1+ as…Stefan Meinel, Martin Pflaumer, Marc Wagner·May 27, 2022SaveLearn
Renormalization of transverse-momentum-dependent parton distribution on the latticeTo calculate the transverse-momentum-dependent parton distribution functions (TMDPDFs) from lattice QCD, an important goal yet to be realized, it is crucial to establish a viable non-perturbative…Kuan Zhang, Xiangdong Ji, Yi-Bo Yang et al.·May 26, 2022SaveLearn
Local Observables in SUq(2) Lattice Gauge TheoryWe consider a deformation of 3D lattice gauge theory in the canonical picture, first classically, based on the Heisenberg double of SU(2), then at the quantum level. We show that…Valentin Bonzom, Maïté Dupuis, Florian Girelli et al.·May 25, 2022SaveLearn
Towards the chiral phase transition in the Roberge-Weiss planeWe discuss the interplay between chiral and center sector phase transitions that occur in QCD with an imaginary quark chemical potential μ=i(2n+1) π T/3. Based on a finite size scaling analysis…F. Cuteri, J. Goswami, F. Karsch et al.·May 25, 2022SaveLearn
η-glueball mixing from Nf=2 lattice QCDWe perform the first lattice study on the mixing of the isoscalar pseudoscalar meson η and the pseudoscalar glueball G in the Nf=2 QCD at the pion mass mπ≈ 350 MeV. The η…Xiangyu Jiang, Wei Sun, Feiyu Chen et al.·May 25, 2022SaveLearn
Centre Vortex Structure of QCD-Vacuum Fields and ConfinementThe non-trivial ground-state vacuum fields of QCD form the foundation of matter. Using modern visualisation techniques, this presentation examines the microscopic structure of these fields. Of…Derek Leinweber, James Biddle, Waseem Kamleh·May 25, 2022SaveLearn
Lattice Scalar Field Theory At Complex CouplingLattice scalar field theories encounter a sign problem when the coupling constant is complex. This is a close cousin of the real-time sign problems that afflict the lattice Schwinger-Keldysh…Scott Lawrence, Hyunwoo Oh, Yukari Yamauchi·May 24, 2022SaveLearn