First direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74: New evidence for a shape transition between N=40 and N=42 close to Z=28
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Аутори
Niikura, M.Mouginot, B.
Franchoo, S.
Matea, I.
Stefan, I.
Verney, D.
Azaiez, F.
Assie, Marlène
Bednarczyk, P.
Borcea, Catalin
Burger, A.
Burgunder, G.
Buta, Anna
Caceres, L.
Clement, Emmanuel
Coquard, L.
de Angelis, G.
de France, Gilles
Santos, F. de Oliveira
Dewald, Alfred
Dijon, A.
Dombradi, Z.
Fiori, E.
Fransen, C.
Friessner, G.
Gaudefroy, L.
Georgiev, G.
Grèvy, Stéphane
Hackstein, Matthias
Harakeh, M. N.
Ibrahim, F.
Kamalou, O.
Kmiecik, M.
Lozeva, R.
Maj, A.
Mihai, C.
Moeller, O.
Myalski, S.
Negoita, Florin
Pantelica, Dan
Perrot, L.
Pissulla, Th.
Rotaru, Florin
Rother, Wolfram
Scarpaci, J. A.
Stodel, C.
Thomas, Jean-Charles
Ujić, Predrag
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Приказ свих података о документуАпстракт
We report here the first direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74. The neutron-rich beam was produced by in-flight fragmentation of Ge-76 at the Grand Accelerateur National dIons Lourds and separated with the LISE spectrometer. The 2(1)(+) state was excited by inelastic scattering and knock-out reaction on a CD2 target and its lifetime was measured by the recoil-distance Doppler-shift method with the Koln plunger device combined with the EXOGAM detectors. The lifetimes of the 2(1)(+) states in Zn-72,Zn-74 were determined to be 17.9(18) and 27.0(24) ps, which correspond to reduced transition probabilities B(E2; 2(1)(+)- GT 0(+)) = 385(39) and 370(33) e(2) fm(4), respectively. These values support the idea of a systematic maximum of collectivity at N = 42 for Zn, Ge, and Se nuclei. In addition, the available systematics in the neighboring nuclei point toward a transition from a spherical oscillator at N = 40 to complete gamma-softness at N = 42.
Извор:
Physical Review C, 2012, 85, 5Финансирање / пројекти:
- German BMBF [06 DA 9040 I-1], Polish Ministry of Science and Higher Education [NN202 309135, NN202 109936], Hungarian Scientific Research Fund (OTKA) [100835]
DOI: 10.1103/PhysRevC.85.054321
ISSN: 2469-9985; 2469-9993
WoS: 000304650900001
Scopus: 2-s2.0-84861854245
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Институција/група
VinčaTY - JOUR AU - Niikura, M. AU - Mouginot, B. AU - Franchoo, S. AU - Matea, I. AU - Stefan, I. AU - Verney, D. AU - Azaiez, F. AU - Assie, Marlène AU - Bednarczyk, P. AU - Borcea, Catalin AU - Burger, A. AU - Burgunder, G. AU - Buta, Anna AU - Caceres, L. AU - Clement, Emmanuel AU - Coquard, L. AU - de Angelis, G. AU - de France, Gilles AU - Santos, F. de Oliveira AU - Dewald, Alfred AU - Dijon, A. AU - Dombradi, Z. AU - Fiori, E. AU - Fransen, C. AU - Friessner, G. AU - Gaudefroy, L. AU - Georgiev, G. AU - Grèvy, Stéphane AU - Hackstein, Matthias AU - Harakeh, M. N. AU - Ibrahim, F. AU - Kamalou, O. AU - Kmiecik, M. AU - Lozeva, R. AU - Maj, A. AU - Mihai, C. AU - Moeller, O. AU - Myalski, S. AU - Negoita, Florin AU - Pantelica, Dan AU - Perrot, L. AU - Pissulla, Th. AU - Rotaru, Florin AU - Rother, Wolfram AU - Scarpaci, J. A. AU - Stodel, C. AU - Thomas, Jean-Charles AU - Ujić, Predrag PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4864 AB - We report here the first direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74. The neutron-rich beam was produced by in-flight fragmentation of Ge-76 at the Grand Accelerateur National dIons Lourds and separated with the LISE spectrometer. The 2(1)(+) state was excited by inelastic scattering and knock-out reaction on a CD2 target and its lifetime was measured by the recoil-distance Doppler-shift method with the Koln plunger device combined with the EXOGAM detectors. The lifetimes of the 2(1)(+) states in Zn-72,Zn-74 were determined to be 17.9(18) and 27.0(24) ps, which correspond to reduced transition probabilities B(E2; 2(1)(+)- GT 0(+)) = 385(39) and 370(33) e(2) fm(4), respectively. These values support the idea of a systematic maximum of collectivity at N = 42 for Zn, Ge, and Se nuclei. In addition, the available systematics in the neighboring nuclei point toward a transition from a spherical oscillator at N = 40 to complete gamma-softness at N = 42. T2 - Physical Review C T1 - First direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74: New evidence for a shape transition between N=40 and N=42 close to Z=28 VL - 85 IS - 5 DO - 10.1103/PhysRevC.85.054321 ER -
@article{ author = "Niikura, M. and Mouginot, B. and Franchoo, S. and Matea, I. and Stefan, I. and Verney, D. and Azaiez, F. and Assie, Marlène and Bednarczyk, P. and Borcea, Catalin and Burger, A. and Burgunder, G. and Buta, Anna and Caceres, L. and Clement, Emmanuel and Coquard, L. and de Angelis, G. and de France, Gilles and Santos, F. de Oliveira and Dewald, Alfred and Dijon, A. and Dombradi, Z. and Fiori, E. and Fransen, C. and Friessner, G. and Gaudefroy, L. and Georgiev, G. and Grèvy, Stéphane and Hackstein, Matthias and Harakeh, M. N. and Ibrahim, F. and Kamalou, O. and Kmiecik, M. and Lozeva, R. and Maj, A. and Mihai, C. and Moeller, O. and Myalski, S. and Negoita, Florin and Pantelica, Dan and Perrot, L. and Pissulla, Th. and Rotaru, Florin and Rother, Wolfram and Scarpaci, J. A. and Stodel, C. and Thomas, Jean-Charles and Ujić, Predrag", year = "2012", abstract = "We report here the first direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74. The neutron-rich beam was produced by in-flight fragmentation of Ge-76 at the Grand Accelerateur National dIons Lourds and separated with the LISE spectrometer. The 2(1)(+) state was excited by inelastic scattering and knock-out reaction on a CD2 target and its lifetime was measured by the recoil-distance Doppler-shift method with the Koln plunger device combined with the EXOGAM detectors. The lifetimes of the 2(1)(+) states in Zn-72,Zn-74 were determined to be 17.9(18) and 27.0(24) ps, which correspond to reduced transition probabilities B(E2; 2(1)(+)- GT 0(+)) = 385(39) and 370(33) e(2) fm(4), respectively. These values support the idea of a systematic maximum of collectivity at N = 42 for Zn, Ge, and Se nuclei. In addition, the available systematics in the neighboring nuclei point toward a transition from a spherical oscillator at N = 40 to complete gamma-softness at N = 42.", journal = "Physical Review C", title = "First direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74: New evidence for a shape transition between N=40 and N=42 close to Z=28", volume = "85", number = "5", doi = "10.1103/PhysRevC.85.054321" }
Niikura, M., Mouginot, B., Franchoo, S., Matea, I., Stefan, I., Verney, D., Azaiez, F., Assie, M., Bednarczyk, P., Borcea, C., Burger, A., Burgunder, G., Buta, A., Caceres, L., Clement, E., Coquard, L., de Angelis, G., de France, G., Santos, F. d. O., Dewald, A., Dijon, A., Dombradi, Z., Fiori, E., Fransen, C., Friessner, G., Gaudefroy, L., Georgiev, G., Grèvy, S., Hackstein, M., Harakeh, M. N., Ibrahim, F., Kamalou, O., Kmiecik, M., Lozeva, R., Maj, A., Mihai, C., Moeller, O., Myalski, S., Negoita, F., Pantelica, D., Perrot, L., Pissulla, Th., Rotaru, F., Rother, W., Scarpaci, J. A., Stodel, C., Thomas, J.,& Ujić, P.. (2012). First direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74: New evidence for a shape transition between N=40 and N=42 close to Z=28. in Physical Review C, 85(5). https://doi.org/10.1103/PhysRevC.85.054321
Niikura M, Mouginot B, Franchoo S, Matea I, Stefan I, Verney D, Azaiez F, Assie M, Bednarczyk P, Borcea C, Burger A, Burgunder G, Buta A, Caceres L, Clement E, Coquard L, de Angelis G, de France G, Santos FDO, Dewald A, Dijon A, Dombradi Z, Fiori E, Fransen C, Friessner G, Gaudefroy L, Georgiev G, Grèvy S, Hackstein M, Harakeh MN, Ibrahim F, Kamalou O, Kmiecik M, Lozeva R, Maj A, Mihai C, Moeller O, Myalski S, Negoita F, Pantelica D, Perrot L, Pissulla T, Rotaru F, Rother W, Scarpaci JA, Stodel C, Thomas J, Ujić P. First direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74: New evidence for a shape transition between N=40 and N=42 close to Z=28. in Physical Review C. 2012;85(5). doi:10.1103/PhysRevC.85.054321 .
Niikura, M., Mouginot, B., Franchoo, S., Matea, I., Stefan, I., Verney, D., Azaiez, F., Assie, Marlène, Bednarczyk, P., Borcea, Catalin, Burger, A., Burgunder, G., Buta, Anna , Caceres, L., Clement, Emmanuel, Coquard, L., de Angelis, G., de France, Gilles, Santos, F. de Oliveira, Dewald, Alfred, Dijon, A., Dombradi, Z., Fiori, E., Fransen, C., Friessner, G., Gaudefroy, L., Georgiev, G., Grèvy, Stéphane, Hackstein, Matthias, Harakeh, M. N., Ibrahim, F., Kamalou, O., Kmiecik, M., Lozeva, R., Maj, A., Mihai, C., Moeller, O., Myalski, S., Negoita, Florin, Pantelica, Dan, Perrot, L., Pissulla, Th., Rotaru, Florin, Rother, Wolfram, Scarpaci, J. A., Stodel, C., Thomas, Jean-Charles, Ujić, Predrag, "First direct lifetime measurement of the 2(1)(+) state in Zn-72,Zn-74: New evidence for a shape transition between N=40 and N=42 close to Z=28" in Physical Review C, 85, no. 5 (2012), https://doi.org/10.1103/PhysRevC.85.054321 . .