Shape coexistence and mixing of low-lying 0+ states in 96Sr
The low energy excited 02,3+ states in 96Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the neutron [2s1/2]2 content of the 01,2,3+ states in 96Sr was determined by means of the d(95Sr, p) transfer reaction at the TRIUMF-ISAC2 facility usi...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-11-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318307329 |
| _version_ | 1818007623357693952 |
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| author | S. Cruz P.C. Bender R. Krücken K. Wimmer F. Ames C. Andreoiu R.A.E. Austin C.S. Bancroft R. Braid T. Bruhn W.N. Catford A. Cheeseman A. Chester D.S. Cross C.Aa. Diget T. Drake A.B. Garnsworthy G. Hackman R. Kanungo A. Knapton W. Korten K. Kuhn J. Lassen R. Laxdal M. Marchetto A. Matta D. Miller M. Moukaddam N.A. Orr N. Sachmpazidi A. Sanetullaev C.E. Svensson N. Terpstra C. Unsworth P.J. Voss |
| author_facet | S. Cruz P.C. Bender R. Krücken K. Wimmer F. Ames C. Andreoiu R.A.E. Austin C.S. Bancroft R. Braid T. Bruhn W.N. Catford A. Cheeseman A. Chester D.S. Cross C.Aa. Diget T. Drake A.B. Garnsworthy G. Hackman R. Kanungo A. Knapton W. Korten K. Kuhn J. Lassen R. Laxdal M. Marchetto A. Matta D. Miller M. Moukaddam N.A. Orr N. Sachmpazidi A. Sanetullaev C.E. Svensson N. Terpstra C. Unsworth P.J. Voss |
| author_sort | S. Cruz |
| collection | DOAJ |
| description | The low energy excited 02,3+ states in 96Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the neutron [2s1/2]2 content of the 01,2,3+ states in 96Sr was determined by means of the d(95Sr, p) transfer reaction at the TRIUMF-ISAC2 facility using the SHARC and TIGRESS arrays. Spectroscopic factors of 0.19(3) and 0.22(3) were extracted for the 96Sr ground and 1229 keV 0+ states, respectively, by fitting the experimental angular distributions to DWBA reaction model calculations. A detailed analysis of the γ-decay of the isomeric 03+ state was used to determine a spectroscopic factor of 0.33(13). The experimental results are compared to shell model calculations, which predict negligible spectroscopic strength for the excited 0+ states in 96Sr. The strengths of the excited 02,3+ states were also analyzed within a two-level mixing model and are consistent with a mixing strength of a2=0.40(14) and a difference in intrinsic deformations of |Δβ|=0.31(3). These results suggest coexistence of three different configurations in 96Sr and strong shape mixing of the two excited 0+ states. Keywords: Single-particle structure, Transfer reaction, Shape coexistence |
| first_indexed | 2024-04-14T05:19:03Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-14T05:19:03Z |
| publishDate | 2018-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-04111879a202464d9cab47e59303509b2022-12-22T02:10:16ZengElsevierPhysics Letters B0370-26932018-11-017869499Shape coexistence and mixing of low-lying 0+ states in 96SrS. Cruz0P.C. Bender1R. Krücken2K. Wimmer3F. Ames4C. Andreoiu5R.A.E. Austin6C.S. Bancroft7R. Braid8T. Bruhn9W.N. Catford10A. Cheeseman11A. Chester12D.S. Cross13C.Aa. Diget14T. Drake15A.B. Garnsworthy16G. Hackman17R. Kanungo18A. Knapton19W. Korten20K. Kuhn21J. Lassen22R. Laxdal23M. Marchetto24A. Matta25D. Miller26M. Moukaddam27N.A. Orr28N. Sachmpazidi29A. Sanetullaev30C.E. Svensson31N. Terpstra32C. Unsworth33P.J. Voss34Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; TRIUMF, Vancouver, BC V6T 2A3, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; TRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Physics, Central Michigan University, Mt Pleasant, MI 48859, USA; Corresponding author.TRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, CanadaDepartment of Astronomy and Physics, Saint Mary's University, Halifax, NS B3H 3C2, CanadaDepartment of Physics, Central Michigan University, Mt Pleasant, MI 48859, USADepartment of Physics, Central Michigan University, Mt Pleasant, MI 48859, USATRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, University of Surrey, Guildford, Surrey, GU2 7XH, United KingdomTRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, CanadaDepartment of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, CanadaDepartment of Physics, University of York, York, YO10 5DD, United KingdomDepartment of Physics, University of Toronto, Toronto, ON M5S 1A7, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Astronomy and Physics, Saint Mary's University, Halifax, NS B3H 3C2, Canada; TRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, University of Surrey, Guildford, Surrey, GU2 7XH, United KingdomIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France; TRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, Central Michigan University, Mt Pleasant, MI 48859, USATRIUMF, Vancouver, BC V6T 2A3, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom; LPC, ENSICAEN, CNRS/IN2P3, UNICAEN, Normandie Université, 14050 Caen cedex, FranceTRIUMF, Vancouver, BC V6T 2A3, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaLPC, ENSICAEN, CNRS/IN2P3, UNICAEN, Normandie Université, 14050 Caen cedex, FranceDepartment of Physics, Central Michigan University, Mt Pleasant, MI 48859, USADepartment of Astronomy and Physics, Saint Mary's University, Halifax, NS B3H 3C2, Canada; TRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, University of Guelph, Guelph, ON, N1G 2W1, CanadaDepartment of Physics, Central Michigan University, Mt Pleasant, MI 48859, USATRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, CanadaThe low energy excited 02,3+ states in 96Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the neutron [2s1/2]2 content of the 01,2,3+ states in 96Sr was determined by means of the d(95Sr, p) transfer reaction at the TRIUMF-ISAC2 facility using the SHARC and TIGRESS arrays. Spectroscopic factors of 0.19(3) and 0.22(3) were extracted for the 96Sr ground and 1229 keV 0+ states, respectively, by fitting the experimental angular distributions to DWBA reaction model calculations. A detailed analysis of the γ-decay of the isomeric 03+ state was used to determine a spectroscopic factor of 0.33(13). The experimental results are compared to shell model calculations, which predict negligible spectroscopic strength for the excited 0+ states in 96Sr. The strengths of the excited 02,3+ states were also analyzed within a two-level mixing model and are consistent with a mixing strength of a2=0.40(14) and a difference in intrinsic deformations of |Δβ|=0.31(3). These results suggest coexistence of three different configurations in 96Sr and strong shape mixing of the two excited 0+ states. Keywords: Single-particle structure, Transfer reaction, Shape coexistencehttp://www.sciencedirect.com/science/article/pii/S0370269318307329 |
| spellingShingle | S. Cruz P.C. Bender R. Krücken K. Wimmer F. Ames C. Andreoiu R.A.E. Austin C.S. Bancroft R. Braid T. Bruhn W.N. Catford A. Cheeseman A. Chester D.S. Cross C.Aa. Diget T. Drake A.B. Garnsworthy G. Hackman R. Kanungo A. Knapton W. Korten K. Kuhn J. Lassen R. Laxdal M. Marchetto A. Matta D. Miller M. Moukaddam N.A. Orr N. Sachmpazidi A. Sanetullaev C.E. Svensson N. Terpstra C. Unsworth P.J. Voss Shape coexistence and mixing of low-lying 0+ states in 96Sr Physics Letters B |
| title | Shape coexistence and mixing of low-lying 0+ states in 96Sr |
| title_full | Shape coexistence and mixing of low-lying 0+ states in 96Sr |
| title_fullStr | Shape coexistence and mixing of low-lying 0+ states in 96Sr |
| title_full_unstemmed | Shape coexistence and mixing of low-lying 0+ states in 96Sr |
| title_short | Shape coexistence and mixing of low-lying 0+ states in 96Sr |
| title_sort | shape coexistence and mixing of low lying 0 states in 96sr |
| url | http://www.sciencedirect.com/science/article/pii/S0370269318307329 |
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