Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg
Gamow-Teller β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Δn=0 requirement plays a major role in the β decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the as...
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-06-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319302722 |
| _version_ | 1811337952493568000 |
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| author | T.A. Berry Zs. Podolyák R.J. Carroll R. Lică H. Grawe N.K. Timofeyuk T. Alexander A.N. Andreyev S. Ansari M.J.G. Borge J. Creswell C. Fahlander L.M. Fraile H.O.U. Fynbo W. Gelletly R.-B. Gerst M. Górska A. Gredley P. Greenlees L.J. Harkness-Brennan M. Huyse S.M. Judge D.S. Judson J. Konki J. Kurcewicz I. Kuti S. Lalkovski I. Lazarus M. Lund M. Madurga N. Mărginean R. Mărginean I. Marroquin C. Mihai R.E. Mihai E. Nácher S. Nae A. Negret C. Niţă R.D. Page S. Pascu Z. Patel A. Perea V. Pucknell P. Rahkila E. Rapisarda P.H. Regan F. Rotaru C.M. Shand E.C. Simpson Ch. Sotty S. Stegemann T. Stora O. Tengblad A. Turturica P. Van Duppen V. Vedia R. Wadsworth P.M. Walker N. Warr F. Wearing H. De Witte |
| author_facet | T.A. Berry Zs. Podolyák R.J. Carroll R. Lică H. Grawe N.K. Timofeyuk T. Alexander A.N. Andreyev S. Ansari M.J.G. Borge J. Creswell C. Fahlander L.M. Fraile H.O.U. Fynbo W. Gelletly R.-B. Gerst M. Górska A. Gredley P. Greenlees L.J. Harkness-Brennan M. Huyse S.M. Judge D.S. Judson J. Konki J. Kurcewicz I. Kuti S. Lalkovski I. Lazarus M. Lund M. Madurga N. Mărginean R. Mărginean I. Marroquin C. Mihai R.E. Mihai E. Nácher S. Nae A. Negret C. Niţă R.D. Page S. Pascu Z. Patel A. Perea V. Pucknell P. Rahkila E. Rapisarda P.H. Regan F. Rotaru C.M. Shand E.C. Simpson Ch. Sotty S. Stegemann T. Stora O. Tengblad A. Turturica P. Van Duppen V. Vedia R. Wadsworth P.M. Walker N. Warr F. Wearing H. De Witte |
| author_sort | T.A. Berry |
| collection | DOAJ |
| description | Gamow-Teller β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Δn=0 requirement plays a major role in the β decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical r-process pathway below both Z=50 (for N>82) and Z=82 (for N>126). The level of forbiddenness of the Δn=1ν1g9/2→π0g7/2 transition has been investigated from the β− decay of the ground state of 207Hg into the single-proton-hole nucleus 207Tl in an experiment at the ISOLDE Decay Station. From statistical observational limits on possible γ-ray transitions depopulating the π0g7/2−1 state in 207Tl, an upper limit of 3.9×10−3% was obtained for the probability of this decay, corresponding to logft>8.8 within a 95% confidence limit. This is the most stringent test of the Δn=0 selection rule to date. |
| first_indexed | 2024-04-13T18:02:30Z |
| format | Article |
| id | doaj.art-5cbc4d9cb43943d8b3c90c6c9698d9f2 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-13T18:02:30Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-5cbc4d9cb43943d8b3c90c6c9698d9f22022-12-22T02:36:11ZengElsevierPhysics Letters B0370-26932019-06-01793271275Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207HgT.A. Berry0Zs. Podolyák1R.J. Carroll2R. Lică3H. Grawe4N.K. Timofeyuk5T. Alexander6A.N. Andreyev7S. Ansari8M.J.G. Borge9J. Creswell10C. Fahlander11L.M. Fraile12H.O.U. Fynbo13W. Gelletly14R.-B. Gerst15M. Górska16A. Gredley17P. Greenlees18L.J. Harkness-Brennan19M. Huyse20S.M. Judge21D.S. Judson22J. Konki23J. Kurcewicz24I. Kuti25S. Lalkovski26I. Lazarus27M. Lund28M. Madurga29N. Mărginean30R. Mărginean31I. Marroquin32C. Mihai33R.E. Mihai34E. Nácher35S. Nae36A. Negret37C. Niţă38R.D. Page39S. Pascu40Z. Patel41A. Perea42V. Pucknell43P. Rahkila44E. Rapisarda45P.H. Regan46F. Rotaru47C.M. Shand48E.C. Simpson49Ch. Sotty50S. Stegemann51T. Stora52O. Tengblad53A. Turturica54P. Van Duppen55V. Vedia56R. Wadsworth57P.M. Walker58N. Warr59F. Wearing60H. De Witte61Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom; Corresponding author.Department of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomCERN, Physics Department, 1211 Geneva 23, Switzerland; H. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaGSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, GermanyDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomDepartment of Physics, University of York, York YO10 5DD, N Yorkshire, United KingdomInstitut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, GermanyCERN, Physics Department, 1211 Geneva 23, Switzerland; Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, SpainSTFC, Daresbury Laboratory, Warrington, WA4 4AD, United KingdomDepartment of Physics, Lund University, S-22100, Lund, SwedenGrupo de Física Nuclear & IPARCOS, FAMN, Universidad Complutense de Madrid, CEI Moncloa, 28040 Madrid, SpainDepartment of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, DenmarkDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomInstitut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, GermanyGSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, GermanyDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomDepartment of Physics, PO Box 35 (YFL), FI-40014 University of Jyväskylä, FinlandDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomKU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, BelgiumNational Physical Laboratory, Teddington, Middlesex, TW11 0LW, United KingdomDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomDepartment of Physics, PO Box 35 (YFL), FI-40014 University of Jyväskylä, Finland; Helsinki Institute of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; CERN, Physics Department, 1211 Geneva 23, SwitzerlandCERN, Physics Department, 1211 Geneva 23, SwitzerlandInstitute of Nuclear Research of the Hungarian Academy of Sciences, 4026 Debrecen, HungaryDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomSTFC, Daresbury Laboratory, Warrington, WA4 4AD, United KingdomDepartment of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, DenmarkCERN, Physics Department, 1211 Geneva 23, SwitzerlandH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaInstituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, SpainH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaInstituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, SpainH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania; School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United KingdomDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomInstituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, SpainSTFC, Daresbury Laboratory, Warrington, WA4 4AD, United KingdomDepartment of Physics, PO Box 35 (YFL), FI-40014 University of Jyväskylä, FinlandCERN, Physics Department, 1211 Geneva 23, SwitzerlandDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom; National Physical Laboratory, Teddington, Middlesex, TW11 0LW, United KingdomH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomDepartment of Nuclear Physics, Australian National University, Canberra, Australian Capital Territory 2601, AustraliaH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania; KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, BelgiumInstitut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, GermanyCERN, Physics Department, 1211 Geneva 23, SwitzerlandInstituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, SpainH. Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, RomaniaKU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, BelgiumGrupo de Física Nuclear & IPARCOS, FAMN, Universidad Complutense de Madrid, CEI Moncloa, 28040 Madrid, SpainDepartment of Physics, University of York, York YO10 5DD, N Yorkshire, United KingdomDepartment of Physics, University of Surrey, Guildford, GU2 7XH, United KingdomInstitut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, GermanyDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomKU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, BelgiumGamow-Teller β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Δn=0 requirement plays a major role in the β decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical r-process pathway below both Z=50 (for N>82) and Z=82 (for N>126). The level of forbiddenness of the Δn=1ν1g9/2→π0g7/2 transition has been investigated from the β− decay of the ground state of 207Hg into the single-proton-hole nucleus 207Tl in an experiment at the ISOLDE Decay Station. From statistical observational limits on possible γ-ray transitions depopulating the π0g7/2−1 state in 207Tl, an upper limit of 3.9×10−3% was obtained for the probability of this decay, corresponding to logft>8.8 within a 95% confidence limit. This is the most stringent test of the Δn=0 selection rule to date.http://www.sciencedirect.com/science/article/pii/S0370269319302722 |
| spellingShingle | T.A. Berry Zs. Podolyák R.J. Carroll R. Lică H. Grawe N.K. Timofeyuk T. Alexander A.N. Andreyev S. Ansari M.J.G. Borge J. Creswell C. Fahlander L.M. Fraile H.O.U. Fynbo W. Gelletly R.-B. Gerst M. Górska A. Gredley P. Greenlees L.J. Harkness-Brennan M. Huyse S.M. Judge D.S. Judson J. Konki J. Kurcewicz I. Kuti S. Lalkovski I. Lazarus M. Lund M. Madurga N. Mărginean R. Mărginean I. Marroquin C. Mihai R.E. Mihai E. Nácher S. Nae A. Negret C. Niţă R.D. Page S. Pascu Z. Patel A. Perea V. Pucknell P. Rahkila E. Rapisarda P.H. Regan F. Rotaru C.M. Shand E.C. Simpson Ch. Sotty S. Stegemann T. Stora O. Tengblad A. Turturica P. Van Duppen V. Vedia R. Wadsworth P.M. Walker N. Warr F. Wearing H. De Witte Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg Physics Letters B |
| title | Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg |
| title_full | Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg |
| title_fullStr | Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg |
| title_full_unstemmed | Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg |
| title_short | Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg |
| title_sort | investigation of the δn 0 selection rule in gamow teller transitions the β decay of 207hg |
| url | http://www.sciencedirect.com/science/article/pii/S0370269319302722 |
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