Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Young Ross D."'
Autor:
Hannaford-Gunn, Alec, Sankey, Edward, Can, Kadir Utku, Horsley, Roger, Perlt, Holger, Rakow, Paul E. L., Schierholz, Gerrit, Somfleth, Kim, Stüben, Hinnerk, Young, Ross D., Zanotti, James M.
Theoretical predictions of the proton--neutron mass difference and measurements of the proton's charge radius require inputs from the Compton amplitude subtraction function. Model-dependent and non-relativistic calculations of this subtraction functi
Externí odkaz:
http://arxiv.org/abs/2207.03040
The computational cost required to calculate nuclear correlation functions grows factorially in the number of quarks, making the study of large nuclei inaccessible to ab initio study using lattice QCD at the present time. However, the tensor expressi
Externí odkaz:
http://arxiv.org/abs/2201.04269
Autor:
Hannaford-Gunn, Alec, Can, Kadir Utku, Horsley, Roger, Nakamura, Yoshifumi, Perlt, Holger, Rakow, Paul E. L., Stüben, Hinnerk, Schierholz, Gerrit, Young, Ross D., Zanotti, James M.
We determine the properties of generalised parton distributions (GPDs) from a lattice QCD calculation of the off-forward Compton amplitude (OFCA). By extending the Feynman-Hellmann relation to second-order matrix elements at off-forward kinematics, t
Externí odkaz:
http://arxiv.org/abs/2110.11532
Autor:
Wu, Jia-Jun, Kamleh, Waseem, Leinweber, Derek B., Li, Yan, Schierholz, Gerrit, Young, Ross D., Zanotti, James M.
An extended two-hadron operator is developed to extract the spectra of irreducible representations (irreps) in the finite volume. The irreps of the group for the finite volume system are projected using a coordinate-space operator. The correlation fu
Externí odkaz:
http://arxiv.org/abs/2109.01557
Autor:
collaboration, QCDSF-UKQCD-CSSM, Horsley, Roger, Nakamura, Yoshifumi, Perlt, Holger, Rakow, Paul E. L., Schierholz, Gerrit, Somfleth, Kim, Young, Ross D., Zanotti, James M.
We have initiated a program to compute the Compton amplitude from lattice QCD with the Feynman-Hellman method. This amplitude is related to the structure function via a Fredholm integral equation of the first kind. It is known that these types of equ
Externí odkaz:
http://arxiv.org/abs/2001.05366
Autor:
Biddle, James, Charvetto, Josh, Kamleh, Waseem, Leinweber, Derek, Piercy, Helen, Puckridge, Ethan, Stokes, Finn, Young, Ross D., Zanotti, James
The gluon field configurations that form the foundation of every lattice QCD calculation contain a rich diversity of emergent nonperturbative structure. Visualisations of these phenomena not only serve to explain the concept of a nontrivial vacuum bu
Externí odkaz:
http://arxiv.org/abs/1903.08308
Publikováno v:
Phys. Rev. C 102, 015207 (2020)
The strange quark contributions to the electromagnetic form factors of the proton are ideal quantities to study the role of hidden flavor in the properties of the proton. This has motivated intense experimental measurements of these form factors. A m
Externí odkaz:
http://arxiv.org/abs/1902.01590
Autor:
Hollitt, Sophie, Horsley, Roger, Jackson, Paul D., Nakamura, Yoshifumi, Perlt, Holger, Rakow, Paul E. L., Schierholz, Gerrit, Stüben, Hinnerk, Young, Ross D., Zanotti, James M.
Early B-physics experiments have left us with a number of puzzles in heavy flavour physics. New lattice calculations (with a greater understanding of QCD effects in the Standard Model) will be needed to support the increase in experimental precision
Externí odkaz:
http://arxiv.org/abs/1811.06677
Autor:
Wu, Jia-jun, Kamleh, Waseem, Leinweber, Derek B., Schierholz, Gerrit, Young, Ross D., Zanotti, James M.
An extended multi-hadron operator is developed to extract the spectra of irreducible representations in the finite volume. The irreducible representations of the cubic group are projected using a coordinate-space operator. The correlation function of
Externí odkaz:
http://arxiv.org/abs/1711.01409
The vast majority of hadrons observed in nature are not stable under the strong interaction, rather they are resonances whose existence is deduced from enhancements in the energy dependence of scattering amplitudes. The study of hadron resonances off
Externí odkaz:
http://arxiv.org/abs/1706.06223