Speaker
Dr
Amy Nicholson
(UC Berkeley)
Description
We determine scattering phase shifts for s,p,d, and f partial wave channels in two-nucleon systems using lattice QCD methods. We use a generalization of Luscher's finite volume method to determine infinite volume phase shifts from a set of finite volume ground- and excited-state energy levels on two volumes, V=(3.4 fm)^3 and V=(4.5 fm)^3. The calculations are performed in the SU(3)-flavor limit, corresponding to a pion mass of approximately 800 MeV. From the energy dependence of the phase shifts we are able to extract scattering parameters corresponding to an effective range expansion.
Primary author
Dr
Amy Nicholson
(UC Berkeley)
Co-authors
Prof.
Andre Walker-Loud
(College of William and Mary)
Dr
Evan Berkowitz
(Lawrence Livermore National Laboratory)
Mr
Mark Strother
(UC Berkeley)
Dr
Pavlos Vranas
(Lawrence Livermore National Lab)
Dr
Raul Briceno
(Jefferson Lab)
Dr
Thorsten Kurth
(Lawrence Berkeley National Laboratory)
