Seminar Details

Pairing and Shell Gaps

Alex Brown, NSCL
Wednesday, September 19, 4:00 PM - Nuclear Science Seminar
NSCL Lecture Hall

I will discuss the odd-even oscillations in the nuclear binding energies in terms the quantity D = BE(A+1) - BE(A-1) - 2 BE(A) as a function of neutron or proton number. Features of the experimental data will be related to pairing and shell gaps. Theoretical results with schematic and realistic models of the nucleon-nucleon effective interactions will shown. Data and theory will focus on results for the calcium isotopes, but the systematics of all known data will be discussed, including those based on recent data for the masses of 26O, 52Ca and 134Sn.