Using EFT to analyze low-energy Compton scattering from protons and light nuclei

Daniel R. Phillips, Judith A. McGovern, Harald W. Griesshammer

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    Abstract

    We discuss the application of an effective field theory (EFT) whichincorporates the chiral symmetry of QCD to Compton scattering from the protonand deuteron. We describe the chiral EFT analysis of the proton Comptonscattering database presented in our recent review (arXiv:1203.6834), whichgives: alpha^{(p)}=10.5 +/- 0.5(stat) +/- 0.8(theory); beta^{(p)}= 2.7 +/-0.5(stat) +/- 0.8(theory), for the electric and magnetic dipole polarizabilityof the proton. We also summarize the chiral EFT analysis of the world data oncoherent Compton scattering from deuterium presented in arXiv:1203.6834. Thatyields: alpha^{(s)}=10.5 +/- 2.0(stat) +/- 0.8(theory); beta^{(s)}=3.6 +/-1.0(stat) +/- 0.8(theory).
    Original languageEnglish
    Title of host publication11th Conference on the Intersections of Nuclear and Particle Physics (CIPANP 2012)
    Publication statusPublished - 2012
    Event11th Conference on the Intersections of Nuclear and Particle Physics (CIPANP 2012) - St. Petersburg, FL, USA
    Duration: 1 Jan 1824 → …

    Conference

    Conference11th Conference on the Intersections of Nuclear and Particle Physics (CIPANP 2012)
    CitySt. Petersburg, FL, USA
    Period1/01/24 → …

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