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Bogdan Fornal Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland. D.Guillemaud- Mueller et al., Nucl. Phys. A (1984) ISOLDE. A. Huck et al., Phys. Rev. C (1985) ISOLDE. Ni. N=50. Fe. Cr. Ti. Ca. Ar. S. N=32. N=28. Deep-inelastic reactions
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Bogdan Fornal Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
D.Guillemaud- Mueller et al., Nucl. Phys. A (1984) ISOLDE
A. Huck et al., Phys. Rev. C (1985) ISOLDE
Ni N=50 Fe Cr Ti Ca Ar S N=32 N=28
Deep-inelastic reactions as a tool for nuclear spectroscopy 4 R. Broda et al., Phys.Lett. B 251,245 (1990)
48Ca + 238U (thick target) 66Ni 48Ca
N/Z(208Pb)=1.54 N/Z(64Ni)=1.29
N/Z=1.59 N/Z=1.54 238U 208Pb N/Z=1.4 48Ca
54 ATLAS & Gammasphere at Argonne NL 48Ca (330 MeV) + 238U (thick) Ni N=50 Fe Cr Ti Ca Ar 48Ca + 238U S N=32 N=28 N/Z equilibration line
Deep-inelastic reaction data 48Ca + 208Pb, Gammasphere, Argonne Beta-decay of the 54Sc parent measured at MSU following fragmentation of a Kr beam
f7/2 p3/2 p1/2 f5/2
fp shell 4 single-particle energies 195 two-body matrix elements (TBME) KB3G interaction: 4A. Poves, J. Sanchez- Solano, E. Caurier, F. Nowacki Nucl. Phys. A (2001). fp GXPF1A interaction: 4M. Honma, T. Otsuka, B.A. Brown, T. Mizusaki Phys. Rev. C (2002); Eur. Phys. J. A (2004). 40Ca
54Ca 34
52Sc 51Ca
48Ca 48Ca (330 MeV) + 238U at LNL Legnaro with PRISMA+CLARA PRISMA CLARA
4F. Perrotet al.,Phys.Rev.C 74, 14313 (2006) ISOLDE
51Ca 2 np3/2f5/2 (9/2-) 51Ca 2 pf7/2np3/2f5/2 (8+) 52Sc
2 2 pf7/2np3/2f5/2 2 pf7/2np3/2f5/2 2 np3/2f5/2 53Ti 52Sc 51Ca
4T. Otsuka et al. Phys. Rev. Lett (2005) 40 48 52 ? Tensor interaction VT = (t1t2) ( [s1s2](2) Y(2)(W) ) Z(r) couples j> and j< orbitals and favors charge exchange processes pf7/2 nf5/2
Summary We performed gamma-ray spectroscopic studies of deep-inelastic reaction productsby combining the g-g coincidencethick target techniquewith the CLARA+PRISMA identification method. Such approach turned out to be very successful in locating yrast structures in hard-to-reach neutron-rich nuclei. By identifying high spin states in 52Sc and 51Ca, we were able to get information on the evolution of the neutron p3/2, p1/2 and f5/2 single particle states down to Z=20. This evolution seems to be consistent with the predicted monopole effect of the tensor force.
Phys. Rev. C. 70, 064304(2004) Phys. Lett. B 546, 22(2002) R. Broda,W. Krolas, T. Pawlat, J. Wrzesinski, B.F. IFJ PAN Krakow, Poland R.V.F. Janssens, S. Zhu, M.P. Carpenter, D. Seweryniak et al. ANL Argonne, USA P. Mantica, B.A. Brown et al.MSU East Lensing, USA M. HonmaUniversity of Aizu, Japan T. Otsuka University of Tokyo, Japan D. Bazzacco, S. Beghini, L. Corradi, G. de Angelis, F. Della Vedova, E. Farnea, E. Fioretto, A. Gadea, S. M. Lenzi, S.Lunardi, G. Montagnoli, N. Marginean, D. R. Napoli, F. Scarlassara, A. M.Stefanini, S. Szilner, M. Trotta, C. A. Ur PRISMA-CLARA group, Legnaro-Padova