Signature inversion caused by triaxiality and unpaired band crossings in Br-72

C Plettner; I Ragnarsson; H Schnare; R Schwengner; L Kaubler; F Donau; A Algora; G de Angelis; D R Napoli; A Gadea; J Eberth; T Steinhardt; O Thelen; M Hausmann; A Muller; A Jungclaus; K P Lieb; D G Jenkins; R Wadsworth; A N Wilson

Signature inversion caused by triaxiality and unpaired band crossings in Br-72

C Plettner, I Ragnarsson, H Schnare, R Schwengner, L Kaubler, F Donau, A Algora, G de Angelis, D R Napoli, A Gadea, J Eberth, T Steinhardt, O Thelen, M Hausmann, A Muller, A Jungclaus, K P Lieb, D G Jenkins, R Wadsworth, A N Wilson

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

High-spin states in Br-72 were studied with the EUROBALL III spectrometer using the Ca-40(Ca-40, alpha 3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.

Original language	English
Pages (from-to)	2454-2457
Number of pages	4
Journal	Physical Review Letters
Volume	85
Issue number	12
Publication status	Published - 18 Sept 2000

Keywords

ROTATIONAL BANDS
HIGH-SPIN
ODD
PROTON
SPECTROSCOPY
DETECTORS
NUCLEI
TESTS

Cite this

Plettner, C., Ragnarsson, I., Schnare, H., Schwengner, R., Kaubler, L., Donau, F., Algora, A., de Angelis, G., Napoli, D. R., Gadea, A., Eberth, J., Steinhardt, T., Thelen, O., Hausmann, M., Muller, A., Jungclaus, A., Lieb, K. P., Jenkins, D. G., Wadsworth, R., & Wilson, A. N. (2000). Signature inversion caused by triaxiality and unpaired band crossings in Br-72. Physical Review Letters, 85(12), 2454-2457.

@article{03e575ec558f4e198835315685402698,

title = "Signature inversion caused by triaxiality and unpaired band crossings in Br-72",

abstract = "High-spin states in Br-72 were studied with the EUROBALL III spectrometer using the Ca-40(Ca-40, alpha 3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.",

keywords = "ROTATIONAL BANDS, HIGH-SPIN, ODD, PROTON, SPECTROSCOPY, DETECTORS, NUCLEI, TESTS",

author = "C Plettner and I Ragnarsson and H Schnare and R Schwengner and L Kaubler and F Donau and A Algora and {de Angelis}, G and Napoli, {D R} and A Gadea and J Eberth and T Steinhardt and O Thelen and M Hausmann and A Muller and A Jungclaus and Lieb, {K P} and Jenkins, {D G} and R Wadsworth and Wilson, {A N}",

year = "2000",

month = sep,

day = "18",

language = "English",

volume = "85",

pages = "2454--2457",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

Plettner, C, Ragnarsson, I, Schnare, H, Schwengner, R, Kaubler, L, Donau, F, Algora, A, de Angelis, G, Napoli, DR, Gadea, A, Eberth, J, Steinhardt, T, Thelen, O, Hausmann, M, Muller, A, Jungclaus, A, Lieb, KP, Jenkins, DG , Wadsworth, R & Wilson, AN 2000, 'Signature inversion caused by triaxiality and unpaired band crossings in Br-72', Physical Review Letters, vol. 85, no. 12, pp. 2454-2457.

TY - JOUR

T1 - Signature inversion caused by triaxiality and unpaired band crossings in Br-72

AU - Plettner, C

AU - Ragnarsson, I

AU - Schnare, H

AU - Schwengner, R

AU - Kaubler, L

AU - Donau, F

AU - Algora, A

AU - de Angelis, G

AU - Napoli, D R

AU - Gadea, A

AU - Eberth, J

AU - Steinhardt, T

AU - Thelen, O

AU - Hausmann, M

AU - Muller, A

AU - Jungclaus, A

AU - Lieb, K P

AU - Jenkins, D G

AU - Wadsworth, R

AU - Wilson, A N

PY - 2000/9/18

Y1 - 2000/9/18

N2 - High-spin states in Br-72 were studied with the EUROBALL III spectrometer using the Ca-40(Ca-40, alpha 3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.

AB - High-spin states in Br-72 were studied with the EUROBALL III spectrometer using the Ca-40(Ca-40, alpha 3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.

KW - ROTATIONAL BANDS

KW - HIGH-SPIN

KW - ODD

KW - PROTON

KW - SPECTROSCOPY

KW - DETECTORS

KW - NUCLEI

KW - TESTS

M3 - Article

SN - 0031-9007

VL - 85

SP - 2454

EP - 2457

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -