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29 papers · 2 filters
Spectroscopy of SU(4) lattice gauge theory with fermions in the two index anti-symmetric representation
Thomas DeGrand, Yuzhi Liu, Ethan T. Neil +2
We present a study of spectroscopy of SU(4) lattice gauge theory coupled to two flavors of Dirac fermions in the anti-symmetric two index representation. The fermion representation…
Initial nucleon structure results with chiral quarks at the physical point
S. Syritsyn, T. Blum, M. Engelhardt +10
We report initial nucleon structure results computed on lattices with 2+1 dynamical Möbius domain wall fermions at the physical point generated by the RBC and UKQCD collaborations.…
Domain wall QCD with physical quark masses
RBC, UKQCD collaborations, : +21
We present results for several light hadronic quantities (, , , , , , ) obtained from simulations of 2+1 flavor domain wall lattice QCD…
In-medium modifications of open and hidden strange-charm mesons from spatial correlation functions
Alexei Bazavov, Frithjof Karsch, Yu Maezawa +2
We calculate spatial correlation functions of in-medium mesons consisting of strange--anti-strange, strange--anti-charm and charm--anti-charm quarks in (2+1)-flavor lattice QCD usi…
Lattice NRQCD study of S- and P-wave bottomonium states in a thermal medium with light flavors
Seyong Kim, Peter Petreczky, Alexander Rothkopf
We investigate the properties of S-and P-wave bottomonium states in the vicinity of the deconfinement transition temperature. The light degrees of freedom are represented by dynami…
Magnetic moments of light nuclei from lattice quantum chromodynamics
S. R. Beane, E. Chang, S. Cohen +6
We present the results of lattice QCD calculations of the magnetic moments of the lightest nuclei, the deuteron, the triton and He, along with those of the neutron and proton…
Charmed bottom baryon spectroscopy from lattice QCD
Zachary S. Brown, William Detmold, Stefan Meinel +1
We calculate the masses of baryons containing one, two, or three heavy quarks using lattice QCD. We consider all possible combinations of charm and bottom quarks, and compute a tot…
Finite Volume Effects on the Extraction of Form Factors at Zero Momentum
Brian C. Tiburzi
Hadronic matrix elements that depend on momentum are required for numerous phenomenological applications. Probing the low-momentum regime is often problematic for lattice QCD compu…
Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD
Thomas Blum, Saumitra Chowdhury, Masashi Hayakawa +1
The form factor that yields the light-by-light scattering contribution to the muon anomalous magnetic moment is computed in lattice QCD+QED and QED. A non-perturbative treatment of…
Reconciling the lattice background field method with nonrelativistic QED: Spinor case
Jong-Wan Lee, Brian C. Tiburzi
We show that inconsistency between background field methods, which are relevant for lattice QCD spectroscopy, and effective field theory matching conditions, which are obtained fro…
The equation of state in (2+1)-flavor QCD
A. Bazavov, Tanmoy Bhattacharya, C. DeTar +17
We present results for the equation of state in (2+1)-flavor QCD using the highly improved staggered quark action and lattices with temporal extent , and . We sho…
Charmed and light pseudoscalar meson decay constants from four-flavor lattice QCD with physical light quarks
A. Bazavov, C. Bernard, C. M. Bouchard +20
We compute the leptonic decay constants , , and , and the quark-mass ratios and in unquenched lattice QCD using the experimentally de…
Neutral meson mixings and meson decay constants with static heavy and domain-wall light quarks
Yasumichi Aoki, Tomomi Ishikawa, Taku Izubuchi +2
Neutral meson mixing matrix elements and meson decay constants are calculated. Static approximation is used for quark and domain-wall fermion formalism is employed for…
mass difference from lattice QCD
Z. Bai, N. H. Christ, T. Izubuchi +3
We report on the first complete calculation of the mass difference, , using lattice QCD. The calculation is performed on a 2+1 flavor, domain wall fermion ensemble…
Lattice simulations with eight flavors of domain wall fermions in SU(3) gauge theory
T. Appelquist, R. C. Brower, G. T. Fleming +13
We study an SU(3) gauge theory with Nf=8 degenerate flavors of light fermions in the fundamental representation. Using the domain wall fermion formulation, we investigate the light…
Lattice calculation of the heavy quark potential at non-zero temperature
A. Bazavov, Y. Burnier, P. Petreczky
We calculated the real and imaginary parts of the static quark anti-quark potential at T>0 in 2+1 flavor QCD using correlators of Wilson lines in Coulomb gauge and lattices with te…
Additional Strange Hadrons from QCD Thermodynamics and Strangeness Freeze-out in Heavy Ion Collisions
A. Bazavov, H. -T. Ding, P. Hegde +11
We compare lattice QCD results for appropriate combinations of net strangeness fluctuations and their correlations with net baryon number fluctuations with predictions from two had…
B-meson decay constants from 2+1-flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks
Norman H. Christ, Jonathan M. Flynn, Taku Izubuchi +5
We calculate the B-meson decay constants f_B, f_Bs, and their ratio in unquenched lattice QCD using domain-wall light quarks and relativistic b-quarks. We use gauge-field ensembles…
The melting and abundance of open charm hadrons
A. Bazavov, H. -T. Ding, P. Hegde +11
Ratios of cumulants of conserved net charge fluctuations are sensitive to the degrees of freedom that are carriers of the corresponding quantum numbers in different phases of stron…
Neutron in a Strong Magnetic Field: Finite Volume Effects
Brian C. Tiburzi
We investigate the neutron's response to magnetic fields on a torus with the aid of chiral perturbation theory, and expose effects from non-vanishing holonomies. The determination…
Maximum-Likelihood Approach to Topological Charge Fluctuations in Lattice Gauge Theory
R. C. Brower, M. Cheng, G. T. Fleming +11
We present a novel technique for the determination of the topological susceptibility (related to the variance of the distribution of global topological charge) from lattice gauge t…
Update of from the form factor at zero recoil with three-flavor lattice QCD
Jon A. Bailey, A. Bazavov, C. Bernard +20
We compute the zero-recoil form factor for the semileptonic decay (and modes related by isospin and charge conjugation) using lattice QCD with thre…
Composite bosonic baryon dark matter on the lattice: SU(4) baryon spectrum and the effective Higgs interaction
Thomas Appelquist, Evan Berkowitz, Richard C. Brower +16
We present the spectrum of baryons in a new SU(4) gauge theory with fundamental fermion constituents. The spectrum of these bosonic baryons is of significant interest for composite…
The QCD phase transition with physical-mass, chiral quarks
Tanmoy Bhattacharya, Michael I. Buchoff, Norman H. Christ +14
We report on the first lattice calculation of the QCD phase transition using chiral fermions at physical values of the quark masses. This calculation uses 2+1 quark flavors, spatia…