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Grodner E, Srebrny J, Droste C, et al. First Measurement of the g Factor in the Chiral Band: The Case of the ^{128}Cs Isomeric State. Phys Rev Lett. 2018;120(2):022502doi: 10.1103/PhysRevLett.120.022502.
Grodner, E., Srebrny, J., Droste, C., Próchniak, L., Rohoziński, S. G., Kowalczyk, M., Ionescu-Bujor, M., Ur, C. A., Starosta, K., Ahn, T., Kisieliński, M., Marchlewski, T., Aydin, S., Recchia, F., Georgiev, G., Lozeva, R., Fiori, E., Zielińska, M., Chen, Q. B., Zhang, S. Q., Yu, L. F., Zhao, P. W., & Meng, J. (2018). First Measurement of the g Factor in the Chiral Band: The Case of the ^{128}Cs Isomeric State. Physical review letters, 120(2), 022502. https://doi.org/10.1103/PhysRevLett.120.022502
Grodner, E, et al. "First Measurement of the g Factor in the Chiral Band: The Case of the ^{128}Cs Isomeric State." Physical review letters vol. 120,2 (2018): 022502. doi: https://doi.org/10.1103/PhysRevLett.120.022502
Grodner E, Srebrny J, Droste C, Próchniak L, Rohoziński SG, Kowalczyk M, Ionescu-Bujor M, Ur CA, Starosta K, Ahn T, Kisieliński M, Marchlewski T, Aydin S, Recchia F, Georgiev G, Lozeva R, Fiori E, Zielińska M, Chen QB, Zhang SQ, Yu LF, Zhao PW, Meng J. First Measurement of the g Factor in the Chiral Band: The Case of the ^{128}Cs Isomeric State. Phys Rev Lett. 2018 Jan 12;120(2):022502. doi: 10.1103/PhysRevLett.120.022502. PMID: 29376727.
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Phys Rev Lett. 2018 Jan 12;120(2):022502. doi: 10.1103/PhysRevLett.120.022502.

First Measurement of the g Factor in the Chiral Band: The Case of the ^{128}Cs Isomeric State.

Physical review letters

E Grodner, J Srebrny, Ch Droste, L Próchniak, S G Rohoziński, M Kowalczyk, M Ionescu-Bujor, C A Ur, K Starosta, T Ahn, M Kisieliński, T Marchlewski, S Aydin, F Recchia, G Georgiev, R Lozeva, E Fiori, M Zielińska, Q B Chen, S Q Zhang, L F Yu, P W Zhao, J Meng

Affiliations

  1. National Centre for Nuclear Research, 05-540 ?wierk, Poland.
  2. Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland.
  3. Heavy Ion Laboratory, University of Warsaw, 02-093 Warsaw, Poland.
  4. Horia Hulubei National Institute for Physics and Nuclear Engineering, 077125 Bucharest, Romania.
  5. Extreme Light Infrastructure, IFIN-HH, 077125 Bucharest, Romania.
  6. Simon Fraser University, V5A 1S6 Vancouver, British Columbia, Canada.
  7. Department of Physics, University of Notre Dame, 46556 Notre Dame, Indiana, USA.
  8. Instituto Nazionale di Fisica Nucleare, 2 35020 Legnaro, Italy.
  9. Department of Physics, Aksaray University, 68100 Aksaray, Turkey.
  10. Dipartimento di Fisica dell'Università di Padova and INFN sez. Padova, I-35131 Padova, Italy.
  11. CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France.
  12. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
  13. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan.

PMID: 29376727 DOI: 10.1103/PhysRevLett.120.022502

Abstract

The g factor of the 56 ns half-life isomeric state in ^{128}Cs has been measured using the time-differential perturbed angular distribution method. This state is the bandhead of the positive-parity chiral rotational band, which emerges when an unpaired proton, an unpaired neutron hole, and an even-even core are coupled such that their angular momentum vectors are aplanar (chiral configuration). g-factor measurements can give important information on the relative orientation of the three angular momentum vectors. The measured g factor g=+0.59(1) shows that there is an important contribution of the core rotation in the total angular momentum of the isomeric state. Moreover, a quantitative theoretical analysis supports the conclusion that the three angular momentum vectors lie almost in one plane, which suggests that the chiral configuration in ^{128}Cs demonstrated in previous works by characteristic patterns of electromagnetic transitions appears only above some value of the total nuclear spin.

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