Date of Award

Summer 2015

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Physics

Committee Director

Rocco Schiavilla

Committee Member

Craig A. Bayse

Committee Member

Jozef Dudek

Committee Member

Sebastian Kuhn

Committee Member

Leposava Vuskovic

Abstract

A coordinate-space nucleon-nucleon potential is constructed in chiral effective field theory (χEFT) retaining pions, nucleons and Δ-isobars as explicit degrees of freedom. The calculation of the potential is carried out by including one-and two-pion-exchange contributions up to next-to-next-to-leading order (N2LO) and contact interactions tip to next-to-next-to-next-to-leading order (N3LO). The low-energy constants multiplying these contact interactions are fitted to the 2013 Granada database in the laboratory-energy range 0–300 MeV. Three versions of this chiral potential, corresponding to three different cutoffs, have been developed. The cutoff regularizes the one- and two-pion exchange as well as the contact part of the potential. A study of the electromagnetic structure of A = 2 and 3 nuclei is also presented in this thesis. The calculation of the static properties and elastic form factors of the deuteron and trinucleons (3He and 3H) is implemented in momentum-space, by utilizing nuclear wave functions obtained either from chiral or realistic potentials, in combination with chiral electromagnetic operators derived up to one loop. Predictions for these physical observables are in a satisfactory agreement with the experimental data.

DOI

10.25777/k2bf-wp48

ISBN

9781339123837

Included in

Nuclear Commons

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