Proton-hole states in the N=30 neutron-rich isotope 49K

被引:15
作者
Broda, R. [1 ]
Wrzesinski, J. [1 ]
Gadea, A. [2 ,10 ]
Marginean, N. [2 ,8 ]
Fornal, B. [1 ]
Corradi, L. [2 ]
Stefanini, A. M. [2 ]
Krolas, W. [1 ]
Pawlat, T. [1 ]
Szpak, B. [1 ]
Lunardi, S. [3 ,4 ]
Valiente-Dobon, J. J. [2 ]
Mengoni, D. [3 ,4 ,11 ]
Farnea, E. [3 ,4 ]
Carpenter, M. P. [6 ]
De Angelis, G. [2 ]
Della Vedova, F. [2 ]
Fioretto, E. [2 ]
Guiot, B. [2 ]
Janssens, R. V. F. [6 ]
Mantica, P. F. [7 ]
Mason, P. [3 ,4 ]
Montagnoli, G. [3 ,4 ]
Napoli, D. R. [2 ]
Orlandi, R. [2 ]
Pokrovskiy, I. [2 ]
Pollarolo, G. [12 ]
Sahin, E. [2 ]
Scarlassara, F. [3 ,4 ]
Silvestri, R. [2 ]
Szilner, S. [9 ]
Ur, C. A. [3 ,4 ]
Trotta, M. [5 ]
Zhu, S. [6 ]
机构
[1] Niewodniczanski Inst Nucl Phys PAN, Krakow, Poland
[2] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy
[3] Univ Padua, Dipartimento Fis, Padua, Italy
[4] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy
[5] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy
[6] Argonne Natl Lab, Argonne, IL 60439 USA
[7] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA
[8] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[9] Rudjer Boskovic Inst, Zagreb, Croatia
[10] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain
[11] Univ W Scotland, Sch Sci & Engn, Paisley, Renfrew, Scotland
[12] Univ Turin, Dipartimento Fis Teor, Turin, Italy
来源
PHYSICAL REVIEW C | 2010年 / 82卷 / 03期
关键词
NUCLEAR-DATA SHEETS; MAGNETIC SPECTROMETER; BETA-DECAY; DEFORMATION;
D O I
10.1103/PhysRevC.82.034319
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Excited states in the N = 30 neutron-rich isotope K-49 have been studied using multinucleon transfer reactions with thin targets and the PRISMA-CLARA spectrometer combined with thick-target gamma-coincidence data from Gammasphere. The d(3/2) proton-hole state is located 92 keV above the s(1/2) ground state, and the proton-particle f(7/2) state is suggested at 2104 keV. Three other levels are established as involving the coupling to 2(+) of two neutrons above the N = 28 shell. The measured or estimated lifetimes served to reinforce the interpretation of the observed level structure, which is found to be in satisfactory agreement with shell-model calculations.
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页数:7
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