[Theory-seminars] Theory seminar. Wednesday. 2pm. Room L102. Maria Piarulli

[Cesar Fernandez-Ramirez]

Theory Center Seminar
Wednesday, December 3, 2014
2 p.m. 
CEBAF Center, Room L102


Speaker: Maria Piarulli (ODU)

Title: Studies of few-nucleon EM structure and two-nucleon interactions in $\chi$EFT

Abstract: This presentation is divided in two parts. The first part deals with the study of the electromagnetic structure of $A$=2 and 3 nuclei in chiral effective field theory ($\chi$EFT). Predictions for static properties and form factors of the deuteron and trinucleons ($^3$He and $^3$H), by using two- and three-nucleon
potentials, and charge and current operators derived in $\chi$EFT, are presented. The second part consists in constructing a minimally nonlocal $\chi$EFT nucleon-nucleon
($NN$) potential up to next-to-next-to-next leading order (N$^3$LO) in the chiral expansion,
including nucleon and $\Delta$-isobar degrees of freedom.
Three versions of the this chiral potential up to N$^3$LO, corresponding to three different cutoffs,
have been developed with good fits to np and pp data up to $E_{\rm LAB}\leq 300$ MeV.


-- 
César Fernández-Ramírez

Theory Center -- Jefferson Lab
12000 Jefferson Ave., Newport News, VA 23606, USA

Phone: (+1) 757-269-7844
Fax: (+1) 757-269-7002
E-mail: cesar at jlab.org