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The 8th International Workshop on Chiral Dynamics 2015

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

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Session

Parallel Session 1- Hadron Structure & Meson-Baryon Interaction WG

Jun 29, 2015, 2:30 PM
Building E, Polo Fibonacci (Pisa)

Building E, Polo Fibonacci

Pisa

Via Buonarroti 2

Conveners

Parallel Session 1- 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. 54. *Leading Talk* Review of the Proton Size Puzzle
    Carl Carlson (College of William and Mary, Williamsburg)
    6/29/15, 2:30 PM
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    The proton charge radius puzzle exists because the proton charge radius appears different when measured with electrons than when measured with muons. "Ordinary" explanations include problems with the extrapolations or theoretical corrections involved in the measurements, and "exotic" explanations include such beyond the standard model ideas as a breakdown of electron-muon universality. We...
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  2. 13. Status of the OLYMPUS Experiment
    Ricardo Alarcon (Arizona State University, Tempe)
    6/29/15, 3:00 PM
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    The OLYMPUS experiment will determine the multiple-photon exchange contribution to elastic lepton-proton scattering, the most likely candidate to resolve the discrepancy between measurements of the proton electric to magnetic form factor ratio, determined using the Rosenbluth separation technique and polarization transfer methods. To this end, the experiment measured the cross section ratio of...
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  3. 51. Chiral perturbation theory of hyperfine splitting in muonic hydrogen
    Franziska Hagelstein (Johannes Gutenberg University, Mainz)
    6/29/15, 3:20 PM
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    We present the predictions of baryon chiral perturbation theory (BChPT) for the proton polarizability contribution to the 2P −2S Lamb shift and the 2S hyperfine splitting (HFS) in muonic hydrogen, and compare them to the results of dispersive calculations. The spin-dependent part of the forward doubly-virtual Compton scattering amplitude (S1,2) contributes to the 2S HFS, whereas the...
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  4. 65. Odd moments of nucleon charge and magnetization distribution in ChPT
    Nadiia Krupina (Johannes Gutenberg University, Mainz)
    6/29/15, 3:40 PM
    Hadron Structure and Meson-Baryon Interaction Working Group
    Talk
    We consider the predictions of Chiral Perturbation Theory (ChPT) for the third Zemach moment and Zemach radius and confront them with empirical values. We look at implications of these results for the Lamb shift and hyperfine structure of (muonic) hydrogen.
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