Dispersion theory in electromagnetic interactions

B Pasquini, M Vanderhaeghen - Annual Review of Nuclear and …, 2018 - annualreviews.org
We review various applications of dispersion relations (DRs) to the electromagnetic structure
of hadrons. We discuss the way DRs allow one to extract information about hadron structure …

Designing optimal experiments: an application to proton Compton scattering

JA Melendez, RJ Furnstahl, HW Grießhammer… - The European Physical …, 2021 - Springer
Interpreting measurements requires a physical theory, but the theory's accuracy may vary
across the experimental domain. To optimize experimental design, and so to ensure that the …

Magnetic polarizability of the nucleon using a Laplacian mode projection

R Bignell, W Kamleh, D Leinweber - Physical Review D, 2020 - APS
Conventional hadron interpolating fields, which utilize gauge-covariant Gaussian smearing,
are ineffective in isolating ground state nucleons in a uniform background magnetic field …

International workshop on next generation gamma-ray source

CR Howell, MW Ahmed, A Afanasev… - Journal of Physics G …, 2021 - iopscience.iop.org
A workshop on The Next Generation Gamma-Ray Source sponsored by the Office of
Nuclear Physics at the Department of Energy, was held November 17-19, 2016 in Bethesda …

Proton scalar dipole polarizabilities from real compton scattering data using fixed-t subtracted dispersion relations and the bootstrap method

B Pasquini, P Pedroni, S Sconfietti - Journal of Physics G: Nuclear …, 2019 - iopscience.iop.org
We perform a fit of the real Compton scattering (RCS) data below pion-production threshold
to extract the electric (α E1) and magnetic (β M1) static scalar dipole polarizabilities of the …

Proton Compton scattering from linearly polarized gamma rays

X Li, MW Ahmed, A Banu, C Bartram, B Crowe… - Physical Review Letters, 2022 - APS
Differential cross sections for Compton scattering from the proton have been measured at
scattering angles of 55°, 90°, and 125° in the laboratory frame using quasimonoenergetic …

First concurrent extraction of the leading-order scalar and spin proton polarizabilities

E Mornacchi, S Rodini, B Pasquini, P Pedroni - Physical Review Letters, 2022 - APS
We performed the first simultaneous extraction of the six leading-order proton
polarizabilities. We reached this milestone thanks to both new high-quality experimental …

[HTML][HTML] Nucleon polarizabilities and compton scattering as playground for chiral perturbation theory

F Hagelstein - Symmetry, 2020 - mdpi.com
I give a summary of recent results on nucleon polarizabilities, with emphasis on chiral
perturbation theory. The predictive calculations of Compton scattering off the nucleon are …

Comprehensive study of observables in Compton scattering on the nucleon

HW Grießhammer, JA McGovern… - The European Physical …, 2018 - Springer
We present an analysis of 13 observables in Compton scattering on the proton. Cross
sections, asymmetries with polarised beam and/or targets, and polarisation-transfer …

[HTML][HTML] Partial-wave analysis of proton Compton scattering data below the pion-production threshold

N Krupina, V Lensky, V Pascalutsa - Physics Letters B, 2018 - Elsevier
Low-energy Compton scattering off the proton is used as an experimental tool for
determination of the proton polarizabilities. However, the present empirical determinations …