The $^{34,35}Al$ beta decay to $^{34,35}Si$

The /sup 34,35/Al beta decay was studied at the CERN on-line mass- separator ISOLDE by beta - gamma , beta - gamma - gamma and beta -n measurements. In the /sup 34/Al decay, the new data confirm the previous results and complement the level scheme in /sup 34/Si and /sup 33/Si. An intruder (2p-2h) O/...

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Detalles Bibliográficos
Autores principales: Nummela, S, Baumann, P, Caurier, E, Dessagne, P, Jokinen, A, Knipper, A, Miehé, C, Nowacki, F, Oinonen, M, Radivojevic, Z, Ramdhane, M, Walter, G, Äystö, J
Lenguaje:eng
Publicado: 1999
Materias:
Nuclear Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/437514
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author Nummela, S
Baumann, P
Caurier, E
Dessagne, P
Jokinen, A
Knipper, A
Miehé, C
Nowacki, F
Oinonen, M
Radivojevic, Z
Ramdhane, M
Walter, G
Äystö, J
author_facet Nummela, S
Baumann, P
Caurier, E
Dessagne, P
Jokinen, A
Knipper, A
Miehé, C
Nowacki, F
Oinonen, M
Radivojevic, Z
Ramdhane, M
Walter, G
Äystö, J
author_sort Nummela, S
collection CERN
description The /sup 34,35/Al beta decay was studied at the CERN on-line mass- separator ISOLDE by beta - gamma , beta - gamma - gamma and beta -n measurements. In the /sup 34/Al decay, the new data confirm the previous results and complement the level scheme in /sup 34/Si and /sup 33/Si. An intruder (2p-2h) O/sub 2//sup +/ state is proposed at 2.1 MeV in /sup 34/Si in, agreement with different shell-model predictions but its decay is still unobserved. A /sup 35/Al beta - decay scheme to /sup 35/Si bound and unbound states is established. The /sup 35/Al half life (41.6(22) ms) was measured with a good precision. The first /sup 35/Si level scheme including three levels at 911, 974 and 2169 keV with respectively J/sup pi /=(3/2)/sup -/, (3/2)/sup +/ and (5/2)/sup +/ was obtained. The spin and parity values are consistent with a (5/2)/sup +/ assignment for the /sup 35 /Al ground state. The value P/sub n/=0.41(13) was also deduced. New information on the proton-neutron interaction in the (sd-fp) space is obtained. (11 refs).
id cern-437514
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-4375142019-09-30T06:29:59Zhttp://cds.cern.ch/record/437514engNummela, SBaumann, PCaurier, EDessagne, PJokinen, AKnipper, AMiehé, CNowacki, FOinonen, MRadivojevic, ZRamdhane, MWalter, GÄystö, JThe $^{34,35}Al$ beta decay to $^{34,35}Si$Nuclear Physics - ExperimentThe /sup 34,35/Al beta decay was studied at the CERN on-line mass- separator ISOLDE by beta - gamma , beta - gamma - gamma and beta -n measurements. In the /sup 34/Al decay, the new data confirm the previous results and complement the level scheme in /sup 34/Si and /sup 33/Si. An intruder (2p-2h) O/sub 2//sup +/ state is proposed at 2.1 MeV in /sup 34/Si in, agreement with different shell-model predictions but its decay is still unobserved. A /sup 35/Al beta - decay scheme to /sup 35/Si bound and unbound states is established. The /sup 35/Al half life (41.6(22) ms) was measured with a good precision. The first /sup 35/Si level scheme including three levels at 911, 974 and 2169 keV with respectively J/sup pi /=(3/2)/sup -/, (3/2)/sup +/ and (5/2)/sup +/ was obtained. The spin and parity values are consistent with a (5/2)/sup +/ assignment for the /sup 35 /Al ground state. The value P/sub n/=0.41(13) was also deduced. New information on the proton-neutron interaction in the (sd-fp) space is obtained. (11 refs).oai:cds.cern.ch:4375141999
spellingShingle Nuclear Physics - Experiment
Nummela, S
Baumann, P
Caurier, E
Dessagne, P
Jokinen, A
Knipper, A
Miehé, C
Nowacki, F
Oinonen, M
Radivojevic, Z
Ramdhane, M
Walter, G
Äystö, J
The $^{34,35}Al$ beta decay to $^{34,35}Si$
title The $^{34,35}Al$ beta decay to $^{34,35}Si$
title_full The $^{34,35}Al$ beta decay to $^{34,35}Si$
title_fullStr The $^{34,35}Al$ beta decay to $^{34,35}Si$
title_full_unstemmed The $^{34,35}Al$ beta decay to $^{34,35}Si$
title_short The $^{34,35}Al$ beta decay to $^{34,35}Si$
title_sort $^{34,35}al$ beta decay to $^{34,35}si$
topic Nuclear Physics - Experiment
url http://cds.cern.ch/record/437514
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