Uncertainty Analysis of 208Pb Neutron Skin Predictions with Chiral Interactions

Symmetry

Francesca Sammarruca¹  Herbert Weigel¹ 

[1] Physics Department, University of Idaho, Moscow, ID 83844-0903, USA; E-Mail

关键词: nuclear matter;    neutron matter;    neutron skin;    symmetry energy;    chiral nuclear interactions;   

DOI  :  10.3390/sym7031646

来源: mdpi

【 摘 要 】

We report predictions for the neutron skin in ²⁰⁸Pb using chiral two- and three-body interactions at increasing orders of chiral effective field theory and varying resolution scales. Closely related quantities, such as the slope of the symmetry energy, are also discussed. The sensitivity of the skin to just pure neutron matter pressure when going from order 2 to order 4 of chiral effective theory is singled out in a set of calculations that employ an empirical equation of state for symmetric nuclear matter.

【 授权许可】

CC BY   
© 2015 by the author; licensee MDPI, Basel, Switzerland.