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Title: Proton-hole states in the N=30 neutron-rich isotope {sup 49}K

Abstract

Excited states in the N=30 neutron-rich isotope {sup 49}K 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{sub 3/2} proton-hole state is located 92 keV above the s{sub 1/2} ground state, and the proton-particle f{sub 7/2} state is suggested at 2104 keV. Three other levels are established as involving the coupling to 2{sup +} 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.

Authors:
; ; ; ; ;  [1];  [2];  [3];  [2];  [4]; ; ; ; ; ; ; ; ; ; more »; ;  [2] « less
  1. Niewodniczanski Institute of Nuclear Physics PAN, Krakow (Poland)
  2. INFN Laboratori Nazionali di Legnaro, Legnaro (Italy)
  3. (Spain)
  4. (Romania)
Publication Date:
OSTI Identifier:
21419525
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 82; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevC.82.034319; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COINCIDENCE METHODS; COMPUTERIZED SIMULATION; COUPLING; EXCITED STATES; GROUND STATES; KEV RANGE 10-100; LIFETIME; MULTI-NUCLEON TRANSFER REACTIONS; NEUTRON-RICH ISOTOPES; NEUTRONS; POTASSIUM 49; PROTONS; SHELL MODELS; SPECTROMETERS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; COUNTING TECHNIQUES; DIRECT REACTIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; FERMIONS; HADRONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; KEV RANGE; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; POTASSIUM ISOTOPES; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SIMULATION; TRANSFER REACTIONS

Citation Formats

Broda, R., Wrzesinski, J., Fornal, B., Krolas, W., Pawlat, T., Szpak, B., Gadea, A., Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, Marginean, N., National Institute for Physics and Nuclear Engineering, Bucharest, Corradi, L., Stefanini, A. M., Valiente-Dobon, J. J., De Angelis, G., Della Vedova, F., Fioretto, E., Guiot, B., Napoli, D. R., Orlandi, R., Pokrovskiy, I., Sahin, E., and Silvestri, R. Proton-hole states in the N=30 neutron-rich isotope {sup 49}K. United States: N. p., 2010. Web. doi:10.1103/PHYSREVC.82.034319.
Broda, R., Wrzesinski, J., Fornal, B., Krolas, W., Pawlat, T., Szpak, B., Gadea, A., Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, Marginean, N., National Institute for Physics and Nuclear Engineering, Bucharest, Corradi, L., Stefanini, A. M., Valiente-Dobon, J. J., De Angelis, G., Della Vedova, F., Fioretto, E., Guiot, B., Napoli, D. R., Orlandi, R., Pokrovskiy, I., Sahin, E., & Silvestri, R. Proton-hole states in the N=30 neutron-rich isotope {sup 49}K. United States. doi:10.1103/PHYSREVC.82.034319.
Broda, R., Wrzesinski, J., Fornal, B., Krolas, W., Pawlat, T., Szpak, B., Gadea, A., Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, Marginean, N., National Institute for Physics and Nuclear Engineering, Bucharest, Corradi, L., Stefanini, A. M., Valiente-Dobon, J. J., De Angelis, G., Della Vedova, F., Fioretto, E., Guiot, B., Napoli, D. R., Orlandi, R., Pokrovskiy, I., Sahin, E., and Silvestri, R. Wed . "Proton-hole states in the N=30 neutron-rich isotope {sup 49}K". United States. doi:10.1103/PHYSREVC.82.034319.
@article{osti_21419525,
title = {Proton-hole states in the N=30 neutron-rich isotope {sup 49}K},
author = {Broda, R. and Wrzesinski, J. and Fornal, B. and Krolas, W. and Pawlat, T. and Szpak, B. and Gadea, A. and Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia and Marginean, N. and National Institute for Physics and Nuclear Engineering, Bucharest and Corradi, L. and Stefanini, A. M. and Valiente-Dobon, J. J. and De Angelis, G. and Della Vedova, F. and Fioretto, E. and Guiot, B. and Napoli, D. R. and Orlandi, R. and Pokrovskiy, I. and Sahin, E. and Silvestri, R.},
abstractNote = {Excited states in the N=30 neutron-rich isotope {sup 49}K 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{sub 3/2} proton-hole state is located 92 keV above the s{sub 1/2} ground state, and the proton-particle f{sub 7/2} state is suggested at 2104 keV. Three other levels are established as involving the coupling to 2{sup +} 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.},
doi = {10.1103/PHYSREVC.82.034319},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 82,
place = {United States},
year = {2010},
month = {9}
}