Predictions for Polarized-Beam/Vector-Polarized-Target Observables in Elastic Compton Scattering on the Deuteron

Abstract

Motivated by developments at HIGS at TUNL that include increased photon flux and the ability to circularly polarize photons, we calculate several beam-polarization/target-spin dependent observables for elastic Compton scattering on the deuteron. This is done at energies of the order of the pion mass within the framework of Heavy Baryon Chiral Perturbation Theory. Our calculation is complete to O(Q^3) and at this order there are no free parameters. Consequently, the results reported here are predictions of the theory. We discuss paths that may lead to the extraction of neutron polarizabilities. We find that the photon/beam polarization asymmetry is not a good observable for the purpose of extracting α_n and β_n. However, one of the double polarization asymmetries, Σ_x, shows appreciable sensitivity to γ_{1n} and could be instrumental in pinning down the neutron spin polarizabilities.

26 pages, 13 figures, revised version to be published in PRC

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• Compton Scattering and the Spin Structure of the Nucleon at Low Energies
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• Complete one-loop analysis of the nucleon's spin polarizabilities
• A new evaluation of the Baldin sum rule
• Compton scattering on the proton, neutron, and deuteron in chiral perturbation theory to O(Q^4)
• Spin polarisabilities of the nucleon at NLO in the chiral expansion
• First Extraction of a Spin-Polarizability of the Proton
• Quasi-free Compton Scattering and the Polarizabilities of the Neutron
• Compton Scattering on the Deuteron in Baryon Chiral Perturbation Theory
• Compton Scattering by the Proton
• Dispersion relations and the spin polarizabilities of the nucleon
• Compton Scattering by the Proton using a Large-Acceptance Arrangement
• Backward spin polarizability ${\gamma }_{\pi }$ of the proton
• Sum rule for the backward spin polarizability of the nucleon from a backward dispersion relation
• Compton scattering from the proton at NLO in the chiral expansion
• Model-independent effects of Delta excitation in nucleon polarizabilities
• Quasi-free Compton Scattering from the Deuteron and Nucleon Polarizabilities
• Spin Polarizabilities of the Nucleon from Polarized Low Energy Compton Scattering
• Nucleon Polarizabilities from Low-Energy Compton Scattering

Cited by in corpus (10)

• Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation
• Using effective field theory to analyse low-energy Compton scattering data from protons and light nuclei
• Phenomenological Lagrangian approach to the electromagnetic deuteron form factors
• Two-photon exchange effect on deuteron electromagnetic form factors
• Investigating Neutron Polarizabilities through Compton Scattering on ${}^3$He
• Analyzing the Effects of Neutron Polarizabilities in Elastic Compton Scattering off ${}^3$He
• Elastic Compton Scattering from 3He and the Role of the Delta
• Estiamte of the two-photon exchange effect on deuteron electromagnetic form factors
• Deuteron electromagnetic form factors in transverse plane with a phenomenological Lagrangian approach
• Nucleon Spin-Polarisabilities from Polarisation Observables in Low-Energy Deuteron Compton Scattering