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14 papers · 2 filters
LQCD at non zero isospin chemical potential
Zhifeng Shi
Systems of non-zero isospin chemical potential are studied from a canonical approach by computing correlation functions with the quantum numbers of 's (). In order…
Matching lattice and continuum axial-vector and vector currents with NRQCD and HISQ quarks
Christopher Monahan, Junko Shigemitsu, Ron Horgan
We match the continuum and lattice axial vector and vector currents at one loop in perturbation theory. For the heavy quarks we use the nonrelativistic QCD (NRQCD) action and for t…
Quarkonium at non-zero isospin density
William Detmold, Stefan Meinel, Zhifeng Shi
We calculate the energies of quarkonium bound states in the presence of a medium of nonzero isospin density using lattice QCD. The medium, created using a canonical (fixed isospin…
Tetraquark bound states in the heavy-light heavy-light system
Zachary S. Brown, Kostas Orginos
A calculation of the interaction potential of two heavy-light mesons in lattice QCD is used to study the existence of tetraquark bound states. The interaction potential of the tetr…
The Beauty of Lattice Perturbation Theory: The Role of Lattice Perturbation Theory in B Physics
Christopher Monahan
As new experimental data arrive from the LHC the prospect of indirectly detecting new physics through precision tests of the Standard Model grows more exciting. Precise experimenta…
Interactions of Charmed Mesons with Light Pseudoscalar Mesons from Lattice QCD and Implications on the Nature of the D_{s0}^*(2317)
Liuming Liu, Kostas Orginos, Feng-Kun Guo +2
We study the scattering of light pseudoscalar mesons (, ) off charmed mesons (, ) in full lattice QCD. The S-wave scattering lengths are calculated using Lüscher's fi…