Nucleon-Nucleon Scattering in a Wave-Packet Formalism
Licentiate thesis, 2020

In this thesis I analyse the prospect of leveraging statistical analyses of the strong nuclear interaction by using the wave-packet continuum discretisation (WPCD) method to efficiently compute nucleon-nucleon (NN) scattering observables on a graphics processing unit (GPU). The WPCD method gives approximate solutions to the S-matrix at multiple scattering energies at the cost of a single eigendecomposition of the NN channel Hamiltonian. In particular, I demonstrate and analyse the accuracy and inherent parallelism of the WPCD method by computing the most common NN scattering observables using a chiral Hamiltonian at next-to-next-to-leading order. I present an in-depth numerical study of the WPCD method and the GPU acceleration thereof. Additionally, I discuss which windows of opportunity are open for studying the strong nuclear interaction using data from few-nucleon scattering experiments.

chiral potentials

two-nucleon scattering

nuclear physics

Raven & Fox, våning 5, Kemivägen 9. Online disputation password: 351069
Opponent: Dr. rer. nat. Kai Hebeler, Institute of Nuclear Physics, Darmstadt Technical University, Germany

Author

Sean Miller

Subatomic, High Energy and Plasma Physics

Miller, S. B. S., Ekström, A., Forssén , C., Nucleon-Nucleon Scattering Calculations for Bayesian Studies of Nuclear Potentials

Strong interactions for precision nuclear physics (PrecisionNuclei)

European Commission (Horizon 2020), 2018-02-01 -- 2023-01-31.

Subject Categories

Subatomic Physics

Roots

Basic sciences

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Publisher

Chalmers University of Technology

Raven & Fox, våning 5, Kemivägen 9. Online disputation password: 351069

Online

Opponent: Dr. rer. nat. Kai Hebeler, Institute of Nuclear Physics, Darmstadt Technical University, Germany

More information

Latest update

5/25/2020