Prof. Nir Barnea,Racah Institute of Physics, Hebrew University of Jerusalem

Date: 
Mon, 26/05/201415:55-16:55
Location: 
Hall 7 (1st floor between Physics and Chemistry buildings) at the campus of Tel Aviv University
"Experimental evaluation of the nuclear neutron-proton contact":
The nuclear neutron-proton contact is introduced, generalizing Tan's work, and evaluated from medium energy nuclear photodisintegration experiments. To this end we reformulate the quasi-deuteron model of nuclear photodisintegration and establish the bridge between the Levinger constant and the contact. Using experimental evaluations of Levinger's constant we extract the value of the neutron-proton contact in finite nuclei and in symmetric nuclear matter. Assuming isospin symmetry we propose to evaluate the neutron-neutron contact through measurement of photonuclear spin correlated neutron-proton pairs.