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Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
Scalar-isoscalar states gravitational form factors dimension-2 condensates
2011/1/7
Scalar-isoscalar states are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regge trajectory. We con...
On form factors in N=4 sym
form factors N=4 sym
2010/12/23
In this paper we study the form factors for the half-BPS operators $\mathcal{O}^{(n)}_I$ and the $\mathcal{N}=4$ stress tensor supermultiplet current $W^{AB}$ up to the second order of perturbation th...
We present first results on the axial and pseudoscalar $\Delta$ form factors. The analysis is carried out in the quenched approximation where statistical errors are small and the lattice set-up can be...
Form Factors in N=4 Super Yang-Mills and Periodic Wilson Loops
N=4 Super Yang-Mills Periodic Wilson Loops
2010/12/23
We calculate form factors of half-BPS operators in N=4 super Yang-Mills theory at tree level and one loop using novel applications of recursion relations and unitarity. In particular, we determine the...
We review recent results on hadron form factors and nucleon generalized parton distibutions obtained with dynamical lattice QCD simulations. We discuss lattice artifacts and open questions, and presen...
Nucleon to Delta transition form factors with $N_F=2+1$ domain wall fermions
Nucleon Delta transition
2011/1/7
We calculate the electromagnetic, axial and pseudo-scalar form factors of the Nucleon to $\Delta(1232)$ transition using two dynamical light degenerate quarks and a dynamical strange quark simulated w...
We review recent results on hadron form factors and nucleon generalized parton distibutions obtained with dynamical lattice QCD simulations. We discuss lattice artifacts and open questions,and present...