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9 papers · 2 filters
New classes of summable Skyrmions
L. Marleau
We introduce two new classes of summable Skyrmions. The Lagrangians they originate from are explicitely constructed. We also analyse how some models could be solve. Exact solutions…
Hadronic Contributions to the Muon and Low-Energy QCD
Eduardo de Rafael
The contributions to the muon anomalous magnetic moment from hadronic vacuum polarization and from hadronic light-by-light scattering are reexamined within the frame work of chiral…
Higgs Boson Interference in
D. A. Morris, T. N. Truong, D. Zappala
We study interference effects between resonant and nonresonant amplitudes for the process at a backscattered photon-photon collider. We show that a Higgs bo…
Low--Energy Behavior of Two--Point Functions of Quark Currents
Johan Bijnens, Eduardo de Rafael, Hanqing Zheng
We discuss vector, axial-vector, scalar and pseudoscalar two-point functions at low and intermediate energies. We first review what is known from chiral perturbation theory, as wel…
Analyticity Properties and Unitarity Constraints of Heavy Meson Form Factors
Eduardo de Rafael, Josep Taron
We derive new bounds on the b-number form factor of the B meson. (Revised version of hep-ph/9306214).
Constituent Quark Couplings and QCD in the Large Limit
Santiago Peris, Eduardo de Rafael
It is shown that in the constituent quark model of Georgi-Manohar, the dispersion relation that leads to the Adler-Weisberger sum rule for the axial vector coupling requires…