Evidence for chiral structures in Cs-130

A J Simons; P Joshi; D G Jenkins; P M Raddon; R Wadsworth; D B Fossan; T Koike; C Vaman; K Starosta; E S Paul; H J Chantler; A O Evans; P Bednarczyk; D Curien

Evidence for chiral structures in Cs-130

A J Simons, P Joshi, D G Jenkins, P M Raddon, R Wadsworth, D B Fossan, T Koike, C Vaman, K Starosta, E S Paul, H J Chantler, A O Evans, P Bednarczyk, D Curien

Physics

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

Abstract

Two low lying positive-parity bands in Cs-130 have been examined for chiral signatures. Small energy differences between the two bands, which have been previously observed, have been confirmed and the bands, as well as the number of transitions within and between the bands, extended. The intraband B(M1)/B(E2) ratios and B(MI)(intraband)/l3(M1)(interband) ratios and the energy staggering parameter, S(I), have been deduced for these partner bands. The results are found to be consistent with a chiral interpretation for the two structures. Core-quasiparticle coupling model calculations have been performed to study Cs-130 assuming a triaxial core. The experimental level energies and electromagnetic properties of the bands, resulting from the pi h(11/20) circle times vh(11/2)(-1) configuration, are reasonably well reproduced by the model, providing further evidence in support of the chiral interpretation of the two structures.

Original language	English
Pages (from-to)	541-552
Number of pages	12
Journal	Journal of physics g-Nuclear and particle physics
Volume	31
Issue number	7
Publication status	Published - Jul 2005

Keywords

TRIAXIAL NUCLEI
ROTATION
CLOVER

Cite this

@article{d93162b6a10c4ccc9d44750a34164aea,

title = "Evidence for chiral structures in Cs-130",

abstract = "Two low lying positive-parity bands in Cs-130 have been examined for chiral signatures. Small energy differences between the two bands, which have been previously observed, have been confirmed and the bands, as well as the number of transitions within and between the bands, extended. The intraband B(M1)/B(E2) ratios and B(MI)(intraband)/l3(M1)(interband) ratios and the energy staggering parameter, S(I), have been deduced for these partner bands. The results are found to be consistent with a chiral interpretation for the two structures. Core-quasiparticle coupling model calculations have been performed to study Cs-130 assuming a triaxial core. The experimental level energies and electromagnetic properties of the bands, resulting from the pi h(11/20) circle times vh(11/2)(-1) configuration, are reasonably well reproduced by the model, providing further evidence in support of the chiral interpretation of the two structures.",

keywords = "TRIAXIAL NUCLEI, ROTATION, CLOVER",

author = "Simons, {A J} and P Joshi and Jenkins, {D G} and Raddon, {P M} and R Wadsworth and Fossan, {D B} and T Koike and C Vaman and K Starosta and Paul, {E S} and Chantler, {H J} and Evans, {A O} and P Bednarczyk and D Curien",

year = "2005",

month = jul,

language = "English",

volume = "31",

pages = "541--552",

journal = "Journal of physics g-Nuclear and particle physics",

issn = "0954-3899",

publisher = "IOP Publishing",

number = "7",

}

TY - JOUR

T1 - Evidence for chiral structures in Cs-130

AU - Simons, A J

AU - Joshi, P

AU - Jenkins, D G

AU - Raddon, P M

AU - Wadsworth, R

AU - Fossan, D B

AU - Koike, T

AU - Vaman, C

AU - Starosta, K

AU - Paul, E S

AU - Chantler, H J

AU - Evans, A O

AU - Bednarczyk, P

AU - Curien, D

PY - 2005/7

Y1 - 2005/7

N2 - Two low lying positive-parity bands in Cs-130 have been examined for chiral signatures. Small energy differences between the two bands, which have been previously observed, have been confirmed and the bands, as well as the number of transitions within and between the bands, extended. The intraband B(M1)/B(E2) ratios and B(MI)(intraband)/l3(M1)(interband) ratios and the energy staggering parameter, S(I), have been deduced for these partner bands. The results are found to be consistent with a chiral interpretation for the two structures. Core-quasiparticle coupling model calculations have been performed to study Cs-130 assuming a triaxial core. The experimental level energies and electromagnetic properties of the bands, resulting from the pi h(11/20) circle times vh(11/2)(-1) configuration, are reasonably well reproduced by the model, providing further evidence in support of the chiral interpretation of the two structures.

AB - Two low lying positive-parity bands in Cs-130 have been examined for chiral signatures. Small energy differences between the two bands, which have been previously observed, have been confirmed and the bands, as well as the number of transitions within and between the bands, extended. The intraband B(M1)/B(E2) ratios and B(MI)(intraband)/l3(M1)(interband) ratios and the energy staggering parameter, S(I), have been deduced for these partner bands. The results are found to be consistent with a chiral interpretation for the two structures. Core-quasiparticle coupling model calculations have been performed to study Cs-130 assuming a triaxial core. The experimental level energies and electromagnetic properties of the bands, resulting from the pi h(11/20) circle times vh(11/2)(-1) configuration, are reasonably well reproduced by the model, providing further evidence in support of the chiral interpretation of the two structures.

KW - TRIAXIAL NUCLEI

KW - ROTATION

KW - CLOVER

M3 - Article

SN - 0954-3899

VL - 31

SP - 541

EP - 552

JO - Journal of physics g-Nuclear and particle physics

JF - Journal of physics g-Nuclear and particle physics

IS - 7

ER -