Zobrazeno 1 - 10
of 463
pro vyhledávání: '"Edwards, Robert G"'
Distillation is a quark-smearing method for the construction of a broad class of hadron operators useful in lattice QCD computations and defined via a projection operator into a vector space of smooth gauge-covariant fields. A new orthonormal basis f
Externí odkaz:
http://arxiv.org/abs/2411.10395
Autor:
Dutrieux, Hervé, Edwards, Robert G., Egerer, Colin, Karpie, Joseph, Monahan, Christopher, Orginos, Kostas, Radyushkin, Anatoly, Richards, David, Romero, Eloy, Zafeiropoulos, Savvas
Publikováno v:
JHEP 08 (2024) 162
We present an exploration of the unpolarized isovector proton generalized parton distributions (GPDs) $H^{u-d}(x, \xi, t)$ and $E^{u-d}(x, \xi, t)$ in the pseudo-distribution formalism using distillation. Taking advantage of the large kinematic cover
Externí odkaz:
http://arxiv.org/abs/2405.10304
Autor:
Briceño, Raúl A., Edwards, Robert G., Eaton, Miller, González-Arciniegas, Carlos, Pfister, Olivier, Siopsis, George
In recent years, applications of quantum simulation have been developed to study properties of strongly interacting theories. This has been driven by two factors: on the one hand, needs from theorists to have access to physical observables that are p
Externí odkaz:
http://arxiv.org/abs/2312.12613
Publikováno v:
Phys.Rev.D 109 (2024) 11, 114503
In order to explore the spectrum of hidden-charm scalar and tensor resonances, we study meson-meson scattering with $J^{PC}=0^{++}, 2^{++}$ in the charmonium energy region using lattice QCD. Employing a light-quark mass corresponding to $m_\pi \appro
Externí odkaz:
http://arxiv.org/abs/2309.14071
Publikováno v:
Phys.Rev.Lett. 132 (2024) 24, 241901
We determine $J^{PC}=0^{++}$ and $2^{++}$ hadron-hadron scattering amplitudes in the charmonium energy region up to 4100 MeV using lattice QCD, a first-principles approach to QCD. Working at $m_\pi\approx 391$ MeV, more than 200 finite-volume energy
Externí odkaz:
http://arxiv.org/abs/2309.14070
Publikováno v:
Phys.Rev.D 109 (2024) 3, 034513
Lattice QCD spectra can be used to constrain partial-wave scattering amplitudes that, while satisfying unitarity, do not have to respect crossing symmetry and analyticity. This becomes a particular problem when extrapolated far from real energies, e.
Externí odkaz:
http://arxiv.org/abs/2304.03762
Publikováno v:
Phys. Rev. D 108 (2023) 3, 034513
Using lattice QCD we extract $\pi\pi$ scattering amplitudes with isospin--0,1,2 in low partial-waves at two values of the light quark mass corresponding to $m_\pi \sim 283$ and $330$ MeV. We confirm expectations of weak repulsion in isospin--2, and t
Externí odkaz:
http://arxiv.org/abs/2303.10701
Autor:
Edwards, Robert G., Egerer, Colin, Karpie, Joseph, Karthik, Nikhil, Monahan, Christopher J., Morris, Wayne, Orginos, Kostas, Radyushkin, Anatoly, Richards, David, Romero, Eloy, Sufian, Raza Sabbir, Zafeiropoulos, Savvas
The non-singlet helicity quark parton distribution functions (PDFs) of the nucleon are determined from lattice QCD, by jointly leveraging pseudo-distributions and the distillation spatial smearing paradigm. A Lorentz decomposition of appropriately is
Externí odkaz:
http://arxiv.org/abs/2211.04434
Autor:
Davoudi, Zohreh, Neil, Ethan T., Bauer, Christian W., Bhattacharya, Tanmoy, Blum, Thomas, Boyle, Peter, Brower, Richard C., Catterall, Simon, Christ, Norman H., Cirigliano, Vincenzo, Colangelo, Gilberto, DeTar, Carleton, Detmold, William, Edwards, Robert G., El-Khadra, Aida X., Gottlieb, Steven, Gupta, Rajan, Hackett, Daniel C., Hasenfratz, Anna, Izubuchi, Taku, Jay, William I., Jin, Luchang, Kelly, Christopher, Kronfeld, Andreas S., Lehner, Christoph, Lin, Huey-Wen, Lin, Meifeng, Lytle, Andrew T., Meinel, Stefan, Meurice, Yannick, Mukherjee, Swagato, Nicholson, Amy, Prelovsek, Sasa, Savage, Martin J., Shanahan, Phiala E., Van De Water, Ruth S., Wagman, Michael L., Witzel, Oliver
Lattice gauge theory continues to be a powerful theoretical and computational approach to simulating strongly interacting quantum field theories, whose applications permeate almost all disciplines of modern-day research in High-Energy Physics. Whethe
Externí odkaz:
http://arxiv.org/abs/2209.10758
Autor:
Bulava, John, Briceño, Raúl, Detmold, William, Döring, Michael, Edwards, Robert G., Francis, Anthony, Knechtli, Francesco, Lewis, Randy, Prelovsek, Sasa, Ryan, Sinéad M., Rusetsky, Akaki, Sharpe, Stephen R., Szczepaniak, Adam, Thomas, Christopher E., Wagman, Michael L., Wagner, Marc
The status and prospects for investigations of exotic and conventional hadrons with lattice QCD are discussed. The majority of hadrons decay strongly via one or multiple decay-channels, including most of the experimentally discovered exotic hadrons.
Externí odkaz:
http://arxiv.org/abs/2203.03230