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The 8th International Workshop on Chiral Dynamics 2015

29 June 2015 to 3 July 2015
Pisa
Europe/Rome timezone

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Session

Parallel Session 2 - Hadron Structure & Meson-Baryon Interaction WG

29 Jun 2015, 16:20
Building E, Polo Fibonacci (Pisa)

Building E, Polo Fibonacci

Pisa

Via Buonarroti 2

Conveners

Parallel Session 2 - Hadron Structure & Meson-Baryon Interaction WG

  • Martin Hoferichter (TU Darmstadt)
  • Andre Walker-Loud (College of William and Mary)
  • Patricia Solvignon (University of New Hampshire)

Presentation materials

There are no materials yet.

  1. 81. *Leading Talk* Compton scattering and nucleon polarisabilities in chiral EFT: The next steps
    Harald W. Griesshammer (George Washington University, Washington)
    29/06/2015, 16:20
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    Compton scattering from protons and neutrons probes the two-photon response of the nucleon in electric and magnetic fields at fixed photon frequency and multipolarity [1]. It provides detailed tests of the symmetries and strengths of the interactions of the nucleonic constituents with each other and with photons. Proton-neutron differences explore the interplay between chiral symmetry breaking...
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  2. 95. New results for Compton scattering on deuterium: A better determination of the neutron electromagnetic polarizabilities
    Gerald Feldman (George Washington University, Washington)
    29/06/2015, 16:50
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    The electric and magnetic polarizabilities of the proton are now relatively well known, owing to Compton scattering measurements on hydrogen targets over the past 20 years [1]. However, in the case of the neutron, these structure constants are still quite uncertain, due to the fact that there are no free neutron targets and that quasi-free Compton scattering on a neutron in a nucleus has a...
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  3. 10. Improved description of the nucleon polarizabilities with relativistic chiral effective field theory
    Jose Manuel Alarcon (University of Bonn)
    29/06/2015, 17:10
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    The electromagnetic structure of the nucleon has an increasing interest for experimental searches of physics beyond the standard model in the precision frontier. The reason is that, due to the remarkable accuracy of the experimental measurements, it is crucial to have a good understanding over all possible contributions. The polarizabilities give the information about the two photon exchange...
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  4. 0. Chiral dynamics in the gamma p --> p pi0 reaction
    Astrid Hiller Blin (IFIC, University of Valencia)
    29/06/2015, 17:30
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    We investigate the neutral pion photoproduction on the proton near threshold in covariant chiral perturbation theory with the explicit inclusion of Delta degrees of freedom. This channel is specially sensitive to chiral dynamics and the advent of very precise data from the Mainz microtron has shown the limits of the convergence of the chiral series for both the heavy baryon and the covariant...
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  5. 22. Impact of the Delta (1232) resonance in neutral pion photoproduction in chiral perturbation theory.
    Lloyd Cawthorne (University of Manchester)
    29/06/2015, 17:50
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    In this talk we will discuss the reaction p + γ → p + π0 and how it has been described using Chiral Perturbation Theory (χPT). Since the early 1990s χPT has been applied to pion photoproduction. The first study was that of Bernard et al. [1,2], detailing a O(p3) relativistic approach to describe the data from Mainz [3] and Saclay [4] from threshold, Eγ ≈ 145 MeV, to Eγ ≈ 160 MeV. In 1996...
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