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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.26 no.1-2 (1999), pp. 043-047
Is It Necessary to Readjust the Pairing Force Constant Due to Particle Number Projection?
B. Slavov, V.I. Dimitrov
Faculty of Physics, University of Sofia, 5 James Bourchier Blvd, 1164 Sofia, Bulgaria
go backFaculty of Physics, University of Sofia, 5 James Bourchier Blvd, 1164 Sofia, Bulgaria
Abstract. The difference between the results of the conventional fixed particle number pairing theory with a pairing force strength taken from the BCS approximation (FBCS) and the results of a fixed particle number theory with a pairing strength constant calculated directly from the odd-even mass differences (FPT) is studied. To date the FPT has been applied along the so called [l] "ground state valley" of the Potential Energy Surface (PES) for 240Pu. The results show fluctuations of the difference between the FBCS and the FPT energies along this path up to 1.64 MeV.