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5 papers · 2 filters
K*-couplings for the antidecuplet excitation
Ya. Azimov, V. Kuznetsov, M. V. Polyakov +1
We estimate the coupling of the K* vector meson to the N-->Theta+ transition employing unitary symmetry, vector meson dominance, and results from the GRAAL Collaboration for eta ph…
The Onset of Quark-Hadron Duality in Pion Electroproduction
T. Navasardyan
A large data set of charged-pion electroproduction from both hydrogen and deuterium targets has been obtained spanning the low-energy residual-mass region. These data conclusively…
Quark-Hadron Duality in Spin Structure Functions g1p and g1d
P. E. Bosted, K. V. Dharmawardane, G. E. Dodge +3
New measurements of the spin structure functions of the proton and deuteron g1p(x,Q2) and g1d(x,Q2) in the nucleon resonance region are compared with extrapolations of target-mass-…
Scalar Mesons a0(1450) and sigma(600) from Lattice QCD
Nilmani Mathur, A. Alexandru, Y. Chen +7
We study the a0 and sigma mesons with the overlap fermion in the chiral regime with the pion mass as low as 182 MeV in the quenched approximation. After the eta'pi ghost states are…
Photoproduction of Xi off nucleons
K. Nakayama, Yongseok Oh, H. Haberzettl
The photoproduction reaction is investigated based on a relativistic meson-exchange model of hadronic interactions. The production amplitude is calculated in the tre…