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Rebeiro BM, Triambak S, Garrett PE, Ball GC, Brown BA, Menéndez J, Romeo B, Adsley P, Lenardo BG, Lindsay R, Bildstein V, Burbadge C, Coleman R, Diaz Varela A, Dubey R, Faestermann T, Hertenberger R, Kamil M, Leach KG, Natzke C, Nzobadila Ondze JC, Radich A, Rand E, Wirth HF. ^{138}Ba(d,α) Study of States in ^{136}Cs: Implications for New Physics Searches with Xenon Detectors. Phys Rev Lett 2023; 131:052501. [PMID: 37595245 DOI: 10.1103/physrevlett.131.052501] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 07/07/2023] [Indexed: 08/20/2023]
Abstract
We used the ^{138}Ba(d,α) reaction to carry out an in-depth study of states in ^{136}Cs, up to around 2.5 MeV. In this Letter, we place emphasis on hitherto unobserved states below the first 1^{+} level, which are important in the context of solar neutrino and fermionic dark matter (FDM) detection in large-scale xenon-based experiments. We identify for the first time candidate metastable states in ^{136}Cs, which would allow a real-time detection of solar neutrino and FDM events in xenon detectors, with high background suppression. Our results are also compared with shell-model calculations performed with three Hamiltonians that were previously used to evaluate the nuclear matrix element (NME) for ^{136}Xe neutrinoless double beta decay. We find that one of these Hamiltonians, which also systematically underestimates the NME compared with the others, dramatically fails to describe the observed low-energy ^{136}Cs spectrum, while the other two show reasonably good agreement.
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Affiliation(s)
- B M Rebeiro
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - S Triambak
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
| | - P E Garrett
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - G C Ball
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - B A Brown
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA
| | - J Menéndez
- Department of Quantum Physics and Astrophysics and Institute of Cosmos Sciences, University of Barcelona, 08028 Barcelona, Spain
| | - B Romeo
- Donostia International Physics Center, 20018 San Sebastián, Spain
| | - P Adsley
- Cyclotron Institute and Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - B G Lenardo
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - R Lindsay
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
| | - V Bildstein
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - C Burbadge
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - R Coleman
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - A Diaz Varela
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - R Dubey
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
- Institute of Physics, University of Szczecin, 70-451 Szczecin, Poland
| | - T Faestermann
- Physik Department, Technische Universität München, D-85748 Garching, Germany
| | - R Hertenberger
- Fakultät für Physik, Ludwig-Maximilians-Universität München, D-85748 Garching, Germany
| | - M Kamil
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
| | - K G Leach
- Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA
| | - C Natzke
- Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA
| | - J C Nzobadila Ondze
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville 7535, South Africa
| | - A Radich
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - E Rand
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - H-F Wirth
- Fakultät für Physik, Ludwig-Maximilians-Universität München, D-85748 Garching, Germany
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Garrett PE, Rodríguez TR, Varela AD, Green KL, Bangay J, Finlay A, Austin RAE, Ball GC, Bandyopadhyay DS, Bildstein V, Colosimo S, Cross DS, Demand GA, Finlay P, Garnsworthy AB, Grinyer GF, Hackman G, Jigmeddorj B, Jolie J, Kulp WD, Leach KG, Morton AC, Orce JN, Pearson CJ, Phillips AA, Radich AJ, Rand ET, Schumaker MA, Svensson CE, Sumithrarachchi C, Triambak S, Warr N, Wong J, Wood JL, Yates SW. Multiple Shape Coexistence in ^{110,112}Cd. Phys Rev Lett 2019; 123:142502. [PMID: 31702191 DOI: 10.1103/physrevlett.123.142502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 06/29/2019] [Indexed: 06/10/2023]
Abstract
From detailed spectroscopy of ^{110}Cd and ^{112}Cd following the β^{+}/electron-capture decay of ^{110,112}In and the β^{-} decay of ^{112}Ag, very weak decay branches from nonyrast states are observed. The transition rates determined from the measured branching ratios and level lifetimes obtained with the Doppler-shift attenuation method following inelastic neutron scattering reveal collective enhancements that are suggestive of a series of rotational bands. In ^{110}Cd, a γ band built on the shape-coexisting intruder configuration is suggested. For ^{112}Cd, the 2^{+} and 3^{+} intruder γ-band members are suggested, the 0_{3}^{+} band is extended to spin 4^{+}, and the 0_{4}^{+} band is identified. The results are interpreted using beyond-mean-field calculations employing the symmetry conserving configuration mixing method with the Gogny D1S energy density functional and with the suggestion that the Cd isotopes exhibit multiple shape coexistence.
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Affiliation(s)
- P E Garrett
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville ZA-7535, South Africa
| | - T R Rodríguez
- Departamento de Física Teórica and CIAFF, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - A Diaz Varela
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - K L Green
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - J Bangay
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - A Finlay
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - R A E Austin
- Department of Physics and Astronomy, St. Mary's University, Halifax, Nova Scotia B3H3C3, Canada
| | - G C Ball
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - D S Bandyopadhyay
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - V Bildstein
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - S Colosimo
- Department of Physics and Astronomy, St. Mary's University, Halifax, Nova Scotia B3H3C3, Canada
| | - D S Cross
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A1S6, Canada
| | - G A Demand
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - P Finlay
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - A B Garnsworthy
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - G F Grinyer
- Department of Physics, University of Regina, Regina, Saskatchewan S4S0A2, Canada
| | - G Hackman
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - B Jigmeddorj
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - J Jolie
- Institut für Kernphysik, Universität zu Köln, Zülpicherstrasse 77, D-50937 Köln, Germany
| | - W D Kulp
- Defense Threat Reduction Agency, 8725 John J Kingman Road, Fort Belvoir, Virginia 22060-6217, USA
| | - K G Leach
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - A C Morton
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - J N Orce
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville ZA-7535, South Africa
| | - C J Pearson
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - A A Phillips
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - A J Radich
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - E T Rand
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - M A Schumaker
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - C E Svensson
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - C Sumithrarachchi
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - S Triambak
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville ZA-7535, South Africa
| | - N Warr
- Institut für Kernphysik, Universität zu Köln, Zülpicherstrasse 77, D-50937 Köln, Germany
| | - J Wong
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - J L Wood
- Department of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - S W Yates
- Departments of Chemistry and Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA
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Burbadge C, Garrett P, Ball G, Bildstein V, Diaz Varela A, Dunlop M, Dunlop R, Faesternann T, Hertenberger R, Jamieson D, Kisliuk D, Leach K, Loranger J, MacLean A, Radich A, Rand E, Svensson C, Triambak S, Wirth HF. Investigation of excited 0 + states in 160Er populated via the ( p, t) two-neutron transfer reaction. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817802025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Many efforts have been made in nuclear structure physics to interpret the nature of low-lying excited 0+ states in well-deformed rare-earth nuclei. However, one of the difficulties in resolving the nature of these states is that there is a paucity of data. In this work, excited 0+ states in the N = 92 nucleus 160Er were studied via the 162Er(p, t)160Er two-neutron transfer reaction, which is ideal for probing 0+ → 0+ transitions, at the Maier-Leibnitz-Laboratorium in Garching, Germany. Reaction products were momentum-analyzed with a Quadrupole-3-Dipole magnetic spectrograph. The 0+2 state was observed to be strongly populated with 18% of the ground state strength.
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Garrett PE, Rand ET, Diaz Varela A, Ball GC, Bildstein V, Faestermann T, Hadinia B, Hertenberger R, Jamieson DS, Jigmeddorj B, Leach KG, Svensson CE, Wirth HF. Direct reactions for nuclear structure required for fundamental symmetry tests. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201612303003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dunlop MR, Svensson CE, Ball GC, Grinyer GF, Leslie JR, Andreoiu C, Austin RAE, Ballast T, Bender PC, Bildstein V, Diaz Varela A, Dunlop R, Garnsworthy AB, Garrett PE, Hackman G, Hadinia B, Jamieson DS, Laffoley AT, MacLean AD, Miller DM, Mills WJ, Park J, Radich AJ, Rajabali MM, Rand ET, Unsworth C, Valencik A, Wang ZM, Zganjar EF. High-Precision Half-Life Measurements for the Superallowed β^{+} Emitter ^{10}C: Implications for Weak Scalar Currents. Phys Rev Lett 2016; 116:172501. [PMID: 27176517 DOI: 10.1103/physrevlett.116.172501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Indexed: 06/05/2023]
Abstract
Precision measurements of superallowed Fermi β-decay transitions, particularly for the lightest superallowed emitters ^{10}C and ^{14}O, set stringent limits on possible scalar current contributions to the weak interaction. In the present work, a discrepancy between recent measurements of the ^{10}C half-life is addressed through two high-precision half-life measurements, via γ-ray photopeak and β counting, that yield consistent results for the ^{10}C half-life of T_{1/2}=19.2969±0.0074 s and T_{1/2}=19.3009±0.0017 s, respectively. The latter is the most precise superallowed β-decay half-life measurement reported to date and the first to achieve a relative precision below 10^{-4}. A fit to the world superallowed β-decay data including the ^{10}C half-life measurements reported here yields b_{F}=-0.0018±0.0021 (68% C.L.) for the Fierz interference term and C_{S}/C_{V}=+0.0009±0.0011 for the ratio of the weak scalar to vector couplings assuming left-handed neutrinos.
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Affiliation(s)
- M R Dunlop
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - C E Svensson
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - G C Ball
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - G F Grinyer
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
| | - J R Leslie
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - C Andreoiu
- Department of Chemistry, Simon Fraser University, Burnaby, British Colombia V5A 1S6, Canada
| | - R A E Austin
- Department of Astronomy and Physics, Saint Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada
| | - T Ballast
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - P C Bender
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - V Bildstein
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - A Diaz Varela
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - R Dunlop
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - A B Garnsworthy
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - P E Garrett
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - G Hackman
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - B Hadinia
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - D S Jamieson
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - A T Laffoley
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - A D MacLean
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - D M Miller
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - W J Mills
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - J Park
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A J Radich
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - M M Rajabali
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - E T Rand
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - C Unsworth
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A Valencik
- Department of Astronomy and Physics, Saint Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada
| | - Z M Wang
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - E F Zganjar
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, 70803, USA
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Garrett PE, Jigmeddorj B, Radich AJ, Andreoiu C, Ball GC, Bangay JC, Bianco L, Bildstein V, Chagnon-Lessard S, Cross DS, Demand GA, Diaz Varela A, Dunlop R, Finlay P, Garnsworthy AB, Green KL, Hackman G, Hadinia B, Leach KG, Michetti-Wilson J, Orce JN, Rajabali MM, Rand ET, Starosta K, Sumithrarachchi C, Svensson CE, Triambak S, Wang ZM, Williams SJ, Wood JL, Wong J, Yates SW, Zganjar EF. Conversion electrons from high-statistics β-decay measurements with the 8 πspectrometer at TRIUMF-ISAC. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201612302005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Varela AD, Garrett P, Ball G, Banjay J, Cross D, Demand G, Finlay P, Garnsworthy A, Green K, Hackman G, Kulp W, Leach K, Orce J, Phillips A, Rand E, Svensson C, Sumithrarachchi C, Triambak S, Wong J, Wood J, Yates S. High-Statistics Study of theβ+/EC-Decay of110In. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146602029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Laffoley AT, Svensson CE, Andreoiu C, Austin RAE, Ball GC, Blank B, Bouzomita H, Cross DS, Diaz Varela A, Dunlop R, Finlay P, Garnsworthy AB, Garrett PE, Giovinazzo J, Grinyer GF, Hackman G, Hadinia B, Jamieson DS, Ketelhut S, Leach KG, Leslie JR, Tardiff ER, Thomas JC, Unsworth C. High-Precision Half-life Measurements for the Superallowed β+Emitter 14O. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Laffoley AT, Dunlop R, Finlay P, Grinyer GF, Andreoiu C, Austin RAE, Ball GC, Bandyopadhyay D, Blank B, Bouzomita H, Chagnon-Lessard S, Chester A, Cross DS, Demand G, Diaz Varela A, Djongolov M, Ettenauer S, Garnsworthy AB, Garrett PE, Giovinazzo J, Glister J, Green KL, Hackman G, Hadinia B, Jamieson DS, Ketelhut S, Leach KG, Leslie JR, Pearson CJ, Phillips AA, Rand ET, Starosta K, Sumithrarachchi CS, Svensson CE, Tardiff ER, Thomas JC, Towner IS, Triambak S, Unsworth C, Williams SJ, Wong J, Yates SW, Zganjar EF. High-precision half-life and branching-ratio measurements for superallowed Fermi β+emitters at TRIUMF – ISAC. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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