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Title: Observation of a $μs$ isomer in $${134\atop{49}}$$ In$$_{85}$$: Proton-neutron coupling "southeast" of $${132\atop{50}}$$ Sn$$_{82}$$

Abstract

In this paper, we report on the observation of a microsecond isomeric state in the single-proton-hole, three-neutron-particle nucleus 134In. The nuclei of interest were produced by in-flight fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. The isomer depopulates through a γ ray of energy 56.7(1) keV and with a half-life of $$T_{1/2}$$ = 3.5 (4) $μs$. Based on the comparison with shell-model calculations, we interpret the isomer as the $I^π$ = 5-member of the $$π0g{-1\atop{9/2}}Ⓧv1f{3\atop{7/2}}$$ multiplet, decaying to the $I^π$ = 7- ground state with a reduced-transition probability of $B (E$ 2; 5- $$\rightarrow$$ 7- = 0.53 (6) W. u. Observation of this isomer, and lack of evidence in the current work for a $I^π$ = 5- isomer decay in 132In, provides a benchmark of the proton-neutron interaction in the region of the nuclear chart “southeast” of 132Sn, where experimental information on excited states is sparse.

Authors:
 [1];  [2];  [3];  [4];  [3];  [5];  [6];  [7];  [8];  [9];  [10];  [9];  [11];  [12];  [13];  [8];  [14];  [8];  [15];  [3] more »;  [16];  [17];  [18];  [17];  [19];  [12];  [20];  [8];  [3];  [15];  [21];  [8];  [22];  [3];  [23];  [24];  [25];  [8];  [25];  [12];  [4];  [25];  [26];  [15];  [13];  [6];  [8];  [13];  [8];  [8];  [8];  [12];  [27];  [12];  [22];  [3];  [11];  [28] « less
  1. RIKEN, Wako-shi, Saitama (Japan). RIKEN Nishina Center; VNU Univ. of Science, Thanh Xuan, Hanoi (Vietnam). Faculty of Phsyics
  2. RIKEN, Wako-shi, Saitama (Japan). RIKEN Nishina Center; National Physical Lab., Teddington (United Kingdom). Chemical Medical and Environmental Science Division; Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
  3. Univ. of Edinburgh, Edinburgh (United Kingdom). School of Physics and Astronomy
  4. Center Michigan Univ., Mount Pleasant, MI (United States). Dept. of Physics and Science of Advanced Materials Program
  5. RIKEN, Wako-shi, Saitama (Japan). RIKEN Nishina Center; Univ. of Hong Kong, Pokfulam Road (Hong Kong). Dept. of Physics
  6. RIKEN, Wako-shi, Saitama (Japan). RIKEN Nishina Center; Univ. of Tokyo, Bunkyo-ku, Tokyo (Japan). Dept. of Physics
  7. National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  8. RIKEN, Wako-shi, Saitama (Japan). RIKEN Nishina Center
  9. National Physical Lab., Teddington (United Kingdom). Chemical Medical and Environmental Science Division
  10. National Physical Lab., Teddington (United Kingdom). Chemical Medical and Environmental Science Division; Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
  11. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  12. Inst. de Física Corpuscular, Valencia (Spain)
  13. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  14. Inst. de Física Corpuscular, Valencia (Spain); MTA ATOMKI, Debrecen (Hungary). Inst. of Nuclear Research
  15. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  16. TRIUMF, Vancouver, British Columbia (Canada)
  17. Univ. Politécnica de Catalunya (UPC), Barcelona (Spain). INTE-ETSEIB
  18. Univ. of Warsaw, Warsaw (Poland). Heavy Ion Lab.
  19. TRIUMF, Vancouver, British Columbia (Canada); Univ. of Victoria, Victoria (Canada). Dept. of Physics and Astronomy
  20. Complesso Univ. di Monte S. Angelo, Napoli (Italy). Inst. Nazionale di Fisica Nucleare
  21. Univ. of Liverpool, Liverpool (United Kingdom). Dept. of Physics
  22. Inst. de Estructura de la Materia, Madrid (Spain)
  23. Vietnam Academy of Science and Technology, Ba Dinh, Hanoi (Vietnam). Inst. of Physics and Graduate Univ. of Science and Technology
  24. RIKEN, Wako-shi, Saitama (Japan). RIKEN Nishina Center; MTA ATOMKI, Debrecen (Hungary). Inst. of Nuclear Research
  25. Univ. of Warsaw, Warsaw (Poland). Faculty of Physics
  26. Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
  27. Inst. de Física Corpuscular, Valencia (Spain); Univ. Politécnica de Catalunya (UPC), Barcelona (Spain). INTE-ETSEIB
  28. Sun Yat-Sen Univ., Zhuhai, Guangdong (China). Sino-French Inst. of Nuclear Engineering and Technology
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1569363
Alternate Identifier(s):
OSTI ID: 1545452
Grant/Contract Number:  
[AC05-00OR22725; FG02-96ER40983; NA0002132]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
[ Journal Volume: 100; Journal Issue: 1]; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Phong, V. H., Lorusso, Giuseppe, Davinson, T., Estrade, A., Hall, O., Liu, J., Matsui, K., Montes, F., Nishimura, S., Boso, A., Regan, P. H., Shearman, R., Xu, Z. Y., Agramunt, J., Allmond, J. M., Ahn, D. S., Algora, A., Baba, H., Brewer, N. T., Bruno, C. G., Caballero-Folch, R., Calvino, F., Wolińska-Cichocka, M., Cortes, G., Dillmann, I., Domingo-Pardo, C., Gargano, A., Go, S., Griffin, C. J., Grzywacz, R. K., Harkness-Brennan, L., Isobe, T., Jungclaus, A., Kahl, D., Khiem, L. H., Kiss, G., Korgul, A., Kubono, S., Miernik, K., Morales, A. I., Nepal, N., Piersa, M., Podolyák, Zs., Rasco, B. C., Rykaczewski, K. P., Sakurai, H., Shimizu, Y., Stacener, D. W., Sumikama, T., Suzuki, H., Takeda, H., Tain, J. L., Tarifeño-Saldivia, A., Tolosa-Delgado, A., Vaquero, V., Woods, P. J., Yokoyama, R., and Yuan, C. Observation of a $μs$ isomer in ${134\atop{49}}$In$_{85}$: Proton-neutron coupling "southeast" of ${132\atop{50}}$Sn$_{82}$. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.100.011302.
Phong, V. H., Lorusso, Giuseppe, Davinson, T., Estrade, A., Hall, O., Liu, J., Matsui, K., Montes, F., Nishimura, S., Boso, A., Regan, P. H., Shearman, R., Xu, Z. Y., Agramunt, J., Allmond, J. M., Ahn, D. S., Algora, A., Baba, H., Brewer, N. T., Bruno, C. G., Caballero-Folch, R., Calvino, F., Wolińska-Cichocka, M., Cortes, G., Dillmann, I., Domingo-Pardo, C., Gargano, A., Go, S., Griffin, C. J., Grzywacz, R. K., Harkness-Brennan, L., Isobe, T., Jungclaus, A., Kahl, D., Khiem, L. H., Kiss, G., Korgul, A., Kubono, S., Miernik, K., Morales, A. I., Nepal, N., Piersa, M., Podolyák, Zs., Rasco, B. C., Rykaczewski, K. P., Sakurai, H., Shimizu, Y., Stacener, D. W., Sumikama, T., Suzuki, H., Takeda, H., Tain, J. L., Tarifeño-Saldivia, A., Tolosa-Delgado, A., Vaquero, V., Woods, P. J., Yokoyama, R., & Yuan, C. Observation of a $μs$ isomer in ${134\atop{49}}$In$_{85}$: Proton-neutron coupling "southeast" of ${132\atop{50}}$Sn$_{82}$. United States. doi:10.1103/PhysRevC.100.011302.
Phong, V. H., Lorusso, Giuseppe, Davinson, T., Estrade, A., Hall, O., Liu, J., Matsui, K., Montes, F., Nishimura, S., Boso, A., Regan, P. H., Shearman, R., Xu, Z. Y., Agramunt, J., Allmond, J. M., Ahn, D. S., Algora, A., Baba, H., Brewer, N. T., Bruno, C. G., Caballero-Folch, R., Calvino, F., Wolińska-Cichocka, M., Cortes, G., Dillmann, I., Domingo-Pardo, C., Gargano, A., Go, S., Griffin, C. J., Grzywacz, R. K., Harkness-Brennan, L., Isobe, T., Jungclaus, A., Kahl, D., Khiem, L. H., Kiss, G., Korgul, A., Kubono, S., Miernik, K., Morales, A. I., Nepal, N., Piersa, M., Podolyák, Zs., Rasco, B. C., Rykaczewski, K. P., Sakurai, H., Shimizu, Y., Stacener, D. W., Sumikama, T., Suzuki, H., Takeda, H., Tain, J. L., Tarifeño-Saldivia, A., Tolosa-Delgado, A., Vaquero, V., Woods, P. J., Yokoyama, R., and Yuan, C. Mon . "Observation of a $μs$ isomer in ${134\atop{49}}$In$_{85}$: Proton-neutron coupling "southeast" of ${132\atop{50}}$Sn$_{82}$". United States. doi:10.1103/PhysRevC.100.011302.
@article{osti_1569363,
title = {Observation of a $μs$ isomer in ${134\atop{49}}$In$_{85}$: Proton-neutron coupling "southeast" of ${132\atop{50}}$Sn$_{82}$},
author = {Phong, V. H. and Lorusso, Giuseppe and Davinson, T. and Estrade, A. and Hall, O. and Liu, J. and Matsui, K. and Montes, F. and Nishimura, S. and Boso, A. and Regan, P. H. and Shearman, R. and Xu, Z. Y. and Agramunt, J. and Allmond, J. M. and Ahn, D. S. and Algora, A. and Baba, H. and Brewer, N. T. and Bruno, C. G. and Caballero-Folch, R. and Calvino, F. and Wolińska-Cichocka, M. and Cortes, G. and Dillmann, I. and Domingo-Pardo, C. and Gargano, A. and Go, S. and Griffin, C. J. and Grzywacz, R. K. and Harkness-Brennan, L. and Isobe, T. and Jungclaus, A. and Kahl, D. and Khiem, L. H. and Kiss, G. and Korgul, A. and Kubono, S. and Miernik, K. and Morales, A. I. and Nepal, N. and Piersa, M. and Podolyák, Zs. and Rasco, B. C. and Rykaczewski, K. P. and Sakurai, H. and Shimizu, Y. and Stacener, D. W. and Sumikama, T. and Suzuki, H. and Takeda, H. and Tain, J. L. and Tarifeño-Saldivia, A. and Tolosa-Delgado, A. and Vaquero, V. and Woods, P. J. and Yokoyama, R. and Yuan, C.},
abstractNote = {In this paper, we report on the observation of a microsecond isomeric state in the single-proton-hole, three-neutron-particle nucleus 134In. The nuclei of interest were produced by in-flight fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. The isomer depopulates through a γ ray of energy 56.7(1) keV and with a half-life of $T_{1/2}$ = 3.5 (4) $μs$. Based on the comparison with shell-model calculations, we interpret the isomer as the $I^π$ = 5-member of the $π0g{-1\atop{9/2}}Ⓧv1f{3\atop{7/2}}$ multiplet, decaying to the $I^π$ = 7- ground state with a reduced-transition probability of $B (E$2; 5- $\rightarrow$ 7- = 0.53 (6) W. u. Observation of this isomer, and lack of evidence in the current work for a $I^π$ = 5- isomer decay in 132In, provides a benchmark of the proton-neutron interaction in the region of the nuclear chart “southeast” of 132Sn, where experimental information on excited states is sparse.},
doi = {10.1103/PhysRevC.100.011302},
journal = {Physical Review C},
number = [1],
volume = [100],
place = {United States},
year = {2019},
month = {7}
}

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Works referenced in this record:

Benchmark test calculation of a four-nucleon bound state
journal, August 2001


Realistic shell-model calculations for proton particle-neutron hole nuclei around 132 Sn
journal, December 2002


Spherical proton-neutron structure of isomeric states in Cd 128
journal, January 2009


The effective interaction between nucleons deduced from nuclear spectra
journal, April 1976


Two-hole structure outside Ni 78 : Existence of a μ s isomer of Co 76 and β decay into Ni 76
journal, November 2015


Identification of μs-isomers produced in the fragmentation of a 112Sn beam
journal, August 1995


1 p 3 / 2 Proton-Hole State in Sn 132 and the Shell Structure Along N = 82
journal, April 2014


Shell-model calculations and realistic effective interactions
journal, January 2009

  • Coraggio, L.; Covello, A.; Gargano, A.
  • Progress in Particle and Nuclear Physics, Vol. 62, Issue 1
  • DOI: 10.1016/j.ppnp.2008.06.001

Isomerism in the “south-east” of 132Sn and a predicted neutron-decaying isomer in 129Pd
journal, November 2016


Nuclear magic numbers: New features far from stability
journal, October 2008


Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008

  • Kibédi, T.; Burrows, T. W.; Trzhaskovskaya, M. B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 589, Issue 2
  • DOI: 10.1016/j.nima.2008.02.051

Conceptual design of a hybrid neutron-gamma detector for study of β-delayed neutrons at the RIB facility of RIKEN
journal, April 2017


The BRIKEN Project: Extensive Measurements of $\beta $-delayed Neutron Emitters for the Astrophysical r Process
journal, January 2018


Commissioning of the BRIKEN detector for the measurement of very exotic β -delayed neutron emitters
journal, May 2019

  • Tolosa-Delgado, A.; Agramunt, J.; Tain, J. L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 925
  • DOI: 10.1016/j.nima.2019.02.004

The magic nature of 132Sn explored through the single-particle states of 133Sn
journal, May 2010

  • Jones, K. L.; Adekola, A. S.; Bardayan, D. W.
  • Nature, Vol. 465, Issue 7297
  • DOI: 10.1038/nature09048

Performance of the Recoil Mass Spectrometer and its detector systems at the Holifield Radioactive Ion Beam Facility
journal, August 2000

  • Gross, C. J.; Ginter, T. N.; Shapira, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 450, Issue 1
  • DOI: 10.1016/S0168-9002(00)00159-5

Single-Neutron States in S 133 n
journal, August 1996


Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238 U Beam at 345 MeV/nucleon
journal, July 2010

  • Ohnishi, Tetsuya; Kubo, Toshiyuki; Kusaka, Kensuke
  • Journal of the Physical Society of Japan, Vol. 79, Issue 7
  • DOI: 10.1143/JPSJ.79.073201

BigRIPS separator and ZeroDegree spectrometer at RIKEN RI Beam Factory
journal, January 2012

  • Kubo, Toshiyuki; Kameda, Daisuke; Suzuki, Hiroshi
  • Progress of Theoretical and Experimental Physics, Vol. 2012, Issue 1
  • DOI: 10.1093/ptep/pts064