Investigation of negative-parity states in Dy156 : Search for evidence of tetrahedral symmetry

Hartley, D. J.; Riedinger, L. L.; Janssens, R. V.  F.; Majola, S. N.  T.; Riley, M. A.; Allmond, J. M.; Beausang, C. W.; Carpenter, M. P.; Chiara, C. J.; Cooper, N.; Curien, D.; Gall, B. J.  P.; Garrett, P. E.; Kondev, F. G.; Kulp, W. D.; Lauritsen, T.; McCutchan, E. A.; Miller, D.; Miller, S.; Piot, J.; Redon, N.; Sharpey-Schafer, J. F.; Simpson, J.; Stefanescu, I.; Wang, X.; Werner, V.; Wood, J. L.; Yu, C. -H.; Zhu, S.; Dudek, J.

doi:10.1103/PhysRevC.95.014321

Investigation of negative-parity states in ${}^{156}{Dy}$ : Search for evidence of tetrahedral symmetry

Journal Article · Sun Jan 01 00:00:00 EST 2017 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.95.014321· OSTI ID:1336059

Hartley, D. J.; Riedinger, L. L.; Janssens, R. V. F.; Majola, S. N. T.; Riley, M. A.; Allmond, J. M.; Beausang, C. W.; Carpenter, M. P.; Chiara, C. J.; Cooper, N.; Curien, D.; Gall, B. J. P.; Garrett, P. E.; Kondev, F. G.; Kulp, W. D.; Lauritsen, T.; McCutchan, E. A.; Miller, D.; Miller, S.; Piot, J. more »

An experiment populating low/medium-spin states in ¹⁵⁶Dy was performed to investigate the possibility of tetrahedral symmetry in this nucleus. In particular, focus was placed on the low-spin, negative-parity states since recent theoretical studies suggest that these may be good candidates for this high-rank symmetry. The states were produced in the ¹⁴⁸Nd(¹²C,4 n) reaction and the Gammasphere array was utilized to detect the emitted rays. B(E 2) /B(E1) ratios of transition probabilities from the low-spin, negative-parity bands were determined and used to interpret whether these structures are best associated with tetrahedral symmetry or, as previously assigned, to octupole vibrations. Additionally, several other negative-parity structures were observed to higher spin and two new sequences were established

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Florida State Univ., Tallahassee, FL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); U.S. Naval Academy, Annapolis, MD (United States); Univ. of Maryland, College Park, MD (United States); Univ. of Tennessee, Knoxville, TN (United States); Yale Univ., New Haven, CT (United States)

Sponsoring Organization:: National Research Foundation (NRF) (South Africa); National Science Foundation (NSF) (United States); Science and Technology Council (STFC) (United Kingdom); USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Contributing Organization:: Georgia Inst. of Technology, Atlanta, GA (United States); Inst. of Nuclear Physics (IPNL), Lyon (France); National Centre for Scientific Research (CNRS), Strasbourg (France); National Research Foundation (NRF), Somerset West (South Africa); Science and Technology Facilities Council (STFC), Daresbury (United Kingdom); Univ. of Guelph, ON (Canada); Univ. of Richmond, VA (United States); Univ. of Strasbourg (France); Univ. of Western Cape, Bellville (South Africa); University of Marie Curie-Sklodowska, Lublin (Poland)

Grant/Contract Number:: AC02-06CH11357; AC05-00OR22725; FG02-91ER40609; FG02-94ER40834; FG02-94ER40848; FG02-96ER40983

OSTI ID:: 1336059

Alternate ID(s):: OSTI ID: 1340474
OSTI ID: 1341291
OSTI ID: 1391943

Report Number(s):: BNL--112415-2016-JA; KB0301041

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 1 Vol. 95; ISSN PRVCAN; ISSN 2469-9985

Publisher:: APSCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (2)

Spectroscopy of low-spin states in Dy 157 : Search for evidence of enhanced octupole correlations Majola, S. N. T.; Bark, R. A.; Bianco, L. Physical Review C, Vol. 100, Issue 3 https://doi.org/10.1103/physrevc.100.034322	journal	September 2019
β and γ bands in N = 88 , 90, and 92 isotones investigated with a five-dimensional collective Hamiltonian based on covariant density functional theory: Vibrations, shape coexistence, and superdeformation Majola, S. N. T.; Shi, Z.; Song, B. Y. Physical Review C, Vol. 100, Issue 4 https://doi.org/10.1103/physrevc.100.044324	journal	October 2019

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Investigation of negative-parity states in

{}^{156}{Dy}

: Search for evidence of tetrahedral symmetry

Journal Article · Sat Dec 31 23:00:00 EST 2016 · Physical Review C · OSTI ID:1391943

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS