Spin Polarizabilities of the Nucleon from Polarized Low Energy Compton Scattering
arXiv:nucl-th/0308054 · doi:10.1140/epja/i2003-10154-7
Abstract
As guideline for forthcoming experiments, we present predictions from Chiral Effective Field Theory for polarized cross sections in low energy Compton scattering for photon energies below 170 MeV, both on the proton and on the neutron. Special interest is put on the role of the nucleon spin polarizabilities which can be examined especially well in polarized Compton scattering. We present a model-independent way to extract their energy dependence and static values from experiment, interpreting our findings also in terms of the low energy effective degrees of freedom inside the nucleon: The polarizabilities are dominated by chiral dynamics from the pion cloud, except for resonant multipoles, where contributions of the Delta(1232) resonance turn out to be crucial. We therefore include it as an explicit degree of freedom. We also identify some experimental settings which are particularly sensitive to the spin polarizabilities.
arXiv comment30 pages, 19 figures
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Cited by in corpus (21)
- Modern Theory of Nuclear Forces
- Using effective field theory to analyse low-energy Compton scattering data from protons and light nuclei
- New insights into the spin structure of the nucleon
- Proton spin polarizabilities from polarized Compton scattering
- Predictions of covariant chiral perturbation theory for nucleon polarisabilities and polarised Compton scattering
- Compton scattering from chiral dynamics with unitarity and causality
- Dispersion Theory in Electromagnetic Interactions
- Higher order forward spin polarizability
- Modern theory of nuclear forces
- Anomaly-induced Quadrupole Moment of the Neutron in Magnetic Field
- Analyzing the Effects of Neutron Polarizabilities in Elastic Compton Scattering off He
- Real and Virtual Compton Scattering: the nucleon polarisabilities
- Predictions for Polarized-Beam/Vector-Polarized-Target Observables in Elastic Compton Scattering on the Deuteron
- Comprehensive Study of Observables in Compton Scattering on the Nucleon
- Elastic Compton Scattering from 3He and the Role of the Delta
- Two-photon interactions with Majorana fermions
- Structure of the nucleon and spin-polarizabilities
- Nucleon Polarizabilities: Theory
- Nucleon Polarisabilities from Compton Scattering off the One- and Few-Nucleon System
- Nucleon Spin-Polarisabilities from Polarisation Observables in Low-Energy Deuteron Compton Scattering
- Aligning a Majorana fermion's anapole moment with an external current through photon emission mediated by the fermion's generalized polarizabilities