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DISPERSION-RELATIONS AND THE NUCLEON POLARIZABILITY
Protons and neutrons polarizability dispersion relations meson polarizability
2014/12/23
Recent experimental results on the proton and neutron polarizabilities are examined from the point of view of backward dispersion relations. Results are found to be in reasonable agreement with the me...
Virtual Compton Scattering and Generalized Polarizabilities of the Nucleon in Heavy Baryon Chiral Perturbation Theory
Virtual Compton scattering amplitude of nuclear chiral perturbation theory the tree level amplitude
2014/12/23
The spin-independent part of the virtual Compton scattering (VCS) amplitude from the nucleon is calculated within the framework of heavy baryon chiral perturbation theory (HBChPT). The calculation is ...
Chiral Perturbation Theory and Nucleon Polarizabilities
Compton scattering nuclear structure
2014/12/22
Compton scattering offers in principle an intriguing new window on nucleon structure. Existing experiments and future programs are discussed and the state of theoretical understanding of such measurem...
Virtual Compton scattering off the nucleon in chiral perturbation theory
The Compton scattering amplitude chiral perturbation theory gw amplitude
2014/12/22
We investigate the spin-independent part of the virtual Compton scattering (VCS) amplitude off the nucleon within the framework of chiral perturbation theory. We perform a consistent calculation to th...
Generalized polarizabilities and the chiral structure of the nucleon
Chiral perturbation theory the generalized polarizability function virtual Compton scattering measurements electron scattering
2014/12/22
We present results of the first chiral perturbation theory calculation for the generalized polarizabilities of the nucleon and discuss the response functions in virtual Compton scattering to be measur...
Delta(1232) and the polarizabilities of the nucleon
Polarizability baryon chiral perturbation theory meson
2014/12/22
Previous calculations of the polarizabilities of the nucleon within the framework of heavy baryon chiral perturbation theory have included the contribution of the Δ(1232) only in its effects on variou...
Generalized polarizabilities and the chiral structure of the nucleon
Electron scattering gamma virtual information Compton scattering and the Compton scattering
2014/12/22
We are studying the electron scattering process e p to e' p' gamma in order to obtain information on the genuine virtual Compton scattering (VCS) process gamma^* N to gamma N. In addition to the two k...
Current issues associated with nucleon axial matrix elements are studied, including the Goldberger-Treiman discrepancy, the induced pseudoscalar, and SU(3) chiral perturbation theory.
Low energy Compton scattering and nucleon structure
Virtual Compton scattering low energy high resolution generalized measuring polarization baryon chiral perturbation theory
2014/12/22
The low energy virtual Compton scattering process eN\rightarrow e'N\gamma offers a new and potentially high resolution window on nucleon structure via measurement of so-called generalized polarizabili...
Generalized polarizabilities and the chiral structure of the nucleon
Compton scattering reaction low energy generalized polarizability chiral perturbation theory
2014/12/22
We discuss the virtual Compton scattering reaction e−p → e−pγ at low energies. We present results for the generalized polarizabilities of the nucleon obtained in heavy baryon chiral pertur...
Compton scattering and the spin structure of the nucleon at low energies
Compton scattering nuclear scattering the photon energy electron volts baryon chiral perturbation theory
2014/12/22
We analyze polarized Compton scattering which provides information on the spin-structure of the nucleon. For scattering processes with photon energies up to 100 MeV the spin-structure dependence can b...
Nucleon anapole moment and parity-violating ep scattering
Quark nuclear Parity - violating coupling weak electricity chiral perturbation
2014/12/22
Parity-violating (PV) interactions among quarks in the nucleon induce a PV γNN coupling, or anapole moment (AM). We compute electroweak gauge-independent contributions to the AM through O(1/Λχ2) in ch...
The subject of nucleon polarizabilities in real, virtual, and doubly virtual Compton scattering is discussed with respect to what is known and how such quantities can be extracted from data.
Generalized polarizabilities of the nucleon in chiral effective theories
Generalized polarizability nuclear detecting electron scattering chiral perturbation theory
2014/12/22
Using the techniques of chiral effective field theories we evaluate the so called “generalized polarizabilities,” which characterize the structure dependent components in virtual Compton scattering of...
Nucleon structure and parity-violating electron scattering
Contribution to the quark nuclear structure quark model vector current nuclear elastic electron scattering
2014/12/22
We review the area of strange quark contributions to nucleon structure. In particular, we focus on current models of strange quark vector currents in the nucleon and the associated parity-violating el...