[Triumf-seminars] TRIUMF Theory Seminar today at 13:00

[TRIUMF Seminars]

Date/Time: Tue 2017-04-18 at 13:00

Location:  Theory Seminar Room 

Speaker:   Sushant More (Michigan State University)

Title:     Scale dependence of deuteron electrodisintegration

Abstract: Ab-initio calculations of medium-mass nuclei have undergone explosive growth in recent years, thanks in part to powerful renormalization group (RG) methods that accelerate convergence by transforming nuclear Hamiltonians to softer forms. There is a widely held folklore that the simple low-momentum wave functions that facilitate microscopic structure calculations inevitably lead to complicated reaction calculations (and interpretations) due to the need to consistently transform the relevant transition operators to more complicated forms. One might expect these complications to be especially severe for operators that probe the high-momentum/short-distance structure of nuclear wave functions. 

Using deuteron electrodisintegration as a simple testbed for nucleon knock-out processes, we study how structure and reaction components (and the resulting physical picture) are modified under RG evolution. In contrast to naive expectations, we find that the RG changes to the operator are tractable which leads to an arguably simpler intuitive picture.  Implications for the final state interactions and the sensitivity to the deuteron D-state probability will also be discussed.



______________________________

General TRIUMF seminar information available at http://www.triumf.ca/home/upcoming-events/about-seminars-lectures