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5 papers · 2 filters
Form factors of two-hadron states from a covariant finite-volume formalism
Alessandro Baroni, Raúl A. Briceño, Maxwell T. Hansen +1
In this work we develop a Lorentz-covariant version of the previously derived formalism for relating finite-volume matrix elements to transit…
PDFs in small boxes
Raúl A. Briceño, Juan V. Guerrero, Maxwell T. Hansen +1
PDFs can be studied directly using lattice QCD by evaluating matrix elements of non-local operators. A number of groups are pursuing numerical calculations and investigating possib…
Three-particle systems with resonant subprocesses in a finite volume
Raúl A. Briceño, Maxwell T. Hansen, Stephen R. Sharpe
In previous work, we have developed a relativistic, model-independent three-particle quantization condition, but only under the assumption that no poles are present in the two-part…
Finite-volume effects due to spatially non-local operators
Raúl A. Briceño, Juan V. Guerrero, Maxwell T. Hansen +1
Spatially non-local matrix elements are useful lattice-QCD observables in a variety of contexts, for example in determining hadron structure. To quote credible estimates of the sys…
Numerical study of the relativistic three-body quantization condition in the isotropic approximation
Raúl A. Briceño, Maxwell T. Hansen, Stephen R. Sharpe
We present numerical results showing how our recently proposed relativistic three-particle quantization condition can be used in practice. Using the isotropic (generalized -wave…