Neutron polarizabilities investigated by quasi-free Compton scattering from the deuteron

Abstract

Measuring Compton scattered photons and recoil neutrons in coincidence, quasi-free Compton scattering by the neutron has been investigated at MAMI (Mainz) at $thet{a}_{\gamma }^{lab}=136^o$ in an energy range from 200 to 400 MeV. From the data a polarizability difference of ${\alpha }_n-{\beta }_n=9.8\pm 3.6(stat{)}_{-1.1}^{+2.1}(syst)\pm 2.2(model)$ in units of $10^{-4}f{m}^3$ has been determined. In combination with the polarizability sum ${\alpha }_n+{\beta }_n=15.2\pm 0.5$ deduced from photo absorption data, the neutron electric and magnetic polarizabilities, ${\alpha }_n=12.5\pm 1.8(stat{)}_{-0.6}^{+1.1}(syst)\pm 1.1(model)$ and ${\beta }_n=2.7\mp 1.8(stat{)}_{-1.1}^{+0.6}(syst)\mp 1.1(model)$, are obtained.

References in corpus (9)

• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Updated resonance photo-decay amplitudes to 2 GeV
• Deuteron Compton scattering below pion photoproduction threshold
• Elastic Compton scattering from the deuteron and nucleon polarizabilities
• Compton Scattering by the Proton
• Compton Scattering by the Proton using a Large-Acceptance Arrangement
• Backward spin polarizability ${\gamma }_{\pi }$ of the proton
• Quasi-free Compton Scattering from the Deuteron and Nucleon Polarizabilities

Cited by in corpus (29)

• Dispersion relations in real and virtual Compton scattering
• Effective theory of the Delta(1232) in Compton scattering off the nucleon
• Electromagnetic Form Factors of the Nucleon and Compton Scattering
• Using effective field theory to analyse low-energy Compton scattering data from protons and light nuclei
• Nucleon Polarizabilities: from Compton Scattering to Hydrogen Atom
• Polarizability of the Nucleon and Compton Scattering
• Experiments in Fundamental Neutron Physics
• Magnetic polarizability of hadrons from lattice QCD in the background field method
• Constraints on new interactions from neutron scattering experiments
• Compton scattering on the proton, neutron, and deuteron in chiral perturbation theory to O(Q^4)
• Hadron structure at low Q^2
• Compton Scattering from the Deuteron and Extracted Neutron Polarizabilities
• Finite-volume and partial quenching effects in the magnetic polarizability of the neutron
• Magnetic polarisability of the nucleon using a Laplacian mode projection
• Neutron magnetic polarisability with Landau mode operators
• Compton Scattering from the Deuteron below Pion-Production Threshold
• Dispersion theory of nucleon Compton scattering and polarizabilities
• Chiral Effective Theory Methods and their Application to the Structure of Hadrons from Lattice QCD
• Near-threshold ${\pi }^{-}$ photoproduction on the deuteron
• Quasi-free ${\pi }^0$ Photoproduction from the Bound Nucleon
• Deuteron Compton Scattering in Effective Field Theory And Spin-Independent Nucleon Polarizabilities
• Electric Polarizability of Hadrons
• Electric polarizabilities of proton and neutron and the relativistic center-of-mass coordinate
• Magnetic Polarisability of Octet Baryons via Lattice QCD
• Background field Landau mode operators for the nucleon
• Studies on the electromagnetic structure of the nucleon by free and quasi-free Compton scattering at MAMI (Mainz)
• Compton Scattering by the Nucleon
• Compton Scattering from the Deuteron above Pion-Production Threshold
• General Formulae of Invariant Functions of the Generalized Reaction γN - γN in the Effective Lagrangians Method