T=52 27Na from 14C+14C, and the N=16 shell gap
For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversio...
Ausführliche Beschreibung
Gespeichert in:
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E-Artikel |
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| Erschienen: |
2002 |
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Online-Ressource 4 |
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APS Digital Backfile Archive 1893-2003 |
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Enthalten in: Physical review / C - Woodbury, NY : Inst., 1970, 65(2002), 5 |
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volume:65 ; year:2002 ; number:5 ; extent:4 |
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| 520 | |a For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. | ||
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(DE-627)NLEJ249690373 (DE-601)aps:866d3bac1f98e5374c86353d92e661d09a0d4968 DE-627 ger DE-627 rakwb T=52 27Na from 14C+14C, and the N=16 shell gap 2002 Online-Ressource 4 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. APS Digital Backfile Archive 1893-2003 Cooper, M. W. oth Tabor, S. L. oth Baldwin, T. oth Campbell, D. B. oth Chandler, C. oth Hoffman, C. R. oth Kemper, K. W. oth Pavan, J. oth Pipidis, A. oth Riley, M. A. oth Wiedeking, M. oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 65(2002), 5 Online-Ressource (DE-627)NLEJ24823787X (DE-600)1461161-2 1089-490X nnns volume:65 year:2002 number:5 extent:4 https://www.tib.eu/de/suchen/id/aps%3A866d3bac1f98e5374c86353d92e661d09a0d4968 Verlag Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-APS GBV_NL_ARTICLE AR 65 2002 5 4 |
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(DE-627)NLEJ249690373 (DE-601)aps:866d3bac1f98e5374c86353d92e661d09a0d4968 DE-627 ger DE-627 rakwb T=52 27Na from 14C+14C, and the N=16 shell gap 2002 Online-Ressource 4 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. APS Digital Backfile Archive 1893-2003 Cooper, M. W. oth Tabor, S. L. oth Baldwin, T. oth Campbell, D. B. oth Chandler, C. oth Hoffman, C. R. oth Kemper, K. W. oth Pavan, J. oth Pipidis, A. oth Riley, M. A. oth Wiedeking, M. oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 65(2002), 5 Online-Ressource (DE-627)NLEJ24823787X (DE-600)1461161-2 1089-490X nnns volume:65 year:2002 number:5 extent:4 https://www.tib.eu/de/suchen/id/aps%3A866d3bac1f98e5374c86353d92e661d09a0d4968 Verlag Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-APS GBV_NL_ARTICLE AR 65 2002 5 4 |
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(DE-627)NLEJ249690373 (DE-601)aps:866d3bac1f98e5374c86353d92e661d09a0d4968 DE-627 ger DE-627 rakwb T=52 27Na from 14C+14C, and the N=16 shell gap 2002 Online-Ressource 4 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. APS Digital Backfile Archive 1893-2003 Cooper, M. W. oth Tabor, S. L. oth Baldwin, T. oth Campbell, D. B. oth Chandler, C. oth Hoffman, C. R. oth Kemper, K. W. oth Pavan, J. oth Pipidis, A. oth Riley, M. A. oth Wiedeking, M. oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 65(2002), 5 Online-Ressource (DE-627)NLEJ24823787X (DE-600)1461161-2 1089-490X nnns volume:65 year:2002 number:5 extent:4 https://www.tib.eu/de/suchen/id/aps%3A866d3bac1f98e5374c86353d92e661d09a0d4968 Verlag Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-APS GBV_NL_ARTICLE AR 65 2002 5 4 |
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(DE-627)NLEJ249690373 (DE-601)aps:866d3bac1f98e5374c86353d92e661d09a0d4968 DE-627 ger DE-627 rakwb T=52 27Na from 14C+14C, and the N=16 shell gap 2002 Online-Ressource 4 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. APS Digital Backfile Archive 1893-2003 Cooper, M. W. oth Tabor, S. L. oth Baldwin, T. oth Campbell, D. B. oth Chandler, C. oth Hoffman, C. R. oth Kemper, K. W. oth Pavan, J. oth Pipidis, A. oth Riley, M. A. oth Wiedeking, M. oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 65(2002), 5 Online-Ressource (DE-627)NLEJ24823787X (DE-600)1461161-2 1089-490X nnns volume:65 year:2002 number:5 extent:4 https://www.tib.eu/de/suchen/id/aps%3A866d3bac1f98e5374c86353d92e661d09a0d4968 Verlag Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-APS GBV_NL_ARTICLE AR 65 2002 5 4 |
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(DE-627)NLEJ249690373 (DE-601)aps:866d3bac1f98e5374c86353d92e661d09a0d4968 DE-627 ger DE-627 rakwb T=52 27Na from 14C+14C, and the N=16 shell gap 2002 Online-Ressource 4 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. APS Digital Backfile Archive 1893-2003 Cooper, M. W. oth Tabor, S. L. oth Baldwin, T. oth Campbell, D. B. oth Chandler, C. oth Hoffman, C. R. oth Kemper, K. W. oth Pavan, J. oth Pipidis, A. oth Riley, M. A. oth Wiedeking, M. oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 65(2002), 5 Online-Ressource (DE-627)NLEJ24823787X (DE-600)1461161-2 1089-490X nnns volume:65 year:2002 number:5 extent:4 https://www.tib.eu/de/suchen/id/aps%3A866d3bac1f98e5374c86353d92e661d09a0d4968 Verlag Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-APS GBV_NL_ARTICLE AR 65 2002 5 4 |
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T=52 27Na from 14C+14C, and the N=16 shell gap |
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For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. |
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For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. |
| abstract_unstemmed |
For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian. |
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2024-07-06T05:31:27.799Z |
| _version_ |
1803806454894821376 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">NLEJ249690373</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20231114102529.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">231114s2002 xx |||||o 00| ||und c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ249690373</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-601)aps:866d3bac1f98e5374c86353d92e661d09a0d4968</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">T=52 27Na from 14C+14C, and the N=16 shell gap</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2002</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">4</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">For the first time a comprehensive level and decay scheme has been obtained for a T=52 nucleus in the s-d shell (27Na) by using a radioactive beam and target. Particle-γ and p-γ-γ coincidences were measured following the 14C(14C,pγ)27Na reaction at Elab=22 MeV. The results do not support an inversion of the 2s1/2 and 1d5/2 orbitals, as previously proposed for Tz>~3, but they do suggest an increased N=16 gap between the 2s1/2 and 1d3/2 orbitals due to the neutron excess. A consistent interpretation of the level scheme in terms of the s-d shell model using the USD Hamiltonian is possible below 4 MeV, but differences increase at higher excitation energies. Another interpretation is that the influences of both the p1/2 and f7/2 intruder orbitals increase simultaneously with increasing T, an effect not included in the USD Hamiltonian.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">APS Digital Backfile Archive 1893-2003</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Cooper, M. W.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tabor, S. L.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Baldwin, T.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Campbell, D. B.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chandler, C.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hoffman, C. R.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kemper, K. W.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pavan, J.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pipidis, A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Riley, M. A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wiedeking, M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Physical review / C</subfield><subfield code="d">Woodbury, NY : Inst., 1970</subfield><subfield code="g">65(2002), 5</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)NLEJ24823787X</subfield><subfield code="w">(DE-600)1461161-2</subfield><subfield code="x">1089-490X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:65</subfield><subfield code="g">year:2002</subfield><subfield code="g">number:5</subfield><subfield code="g">extent:4</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://www.tib.eu/de/suchen/id/aps%3A866d3bac1f98e5374c86353d92e661d09a0d4968</subfield><subfield code="x">Verlag</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-APS</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">65</subfield><subfield code="j">2002</subfield><subfield code="e">5</subfield><subfield code="g">4</subfield></datafield></record></collection>
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7.3993053 |