First evidence for chirality in Tc isotopes: Spectroscopy of Tc-100

P Joshi; A R Wilkinson; T Koike; D B Fossan; S Finnigan; E S Paul; P M Raddon; G Rainovski; K Starosta; A J Simons; C Vaman; R Wadsworth

doi:10.1140/epja/i2004-10120-y

First evidence for chirality in Tc isotopes: Spectroscopy of Tc-100

P Joshi, A R Wilkinson, T Koike, D B Fossan, S Finnigan, E S Paul, P M Raddon, G Rainovski, K Starosta, A J Simons, C Vaman, R Wadsworth

Physics

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

Abstract

Excited states in Tc-100 have been studied using the Zr-96(Li-7, 3n) reaction at a beam energy of 27 MeV. In the present work, evidence has been found for a second Delta I = 1 band decaying via several stretched dipole transitions to the previously known Delta I = 1 negative-parity band. Comparison of these data with those in neighbouring nuclei and also against recently reported criteria for chiral bands in nuclei, suggests that the two structures can be interpreted as chiral partners. Core quasi-particle coupling model calculations show reasonable agreement with the data and generally support the chiral interpretation of the states.

Original language	English
Pages (from-to)	23-29
Number of pages	7
Journal	European physical journal A : Hadrons & Nuclei
Volume	24
Issue number	1
DOIs	https://doi.org/10.1140/epja/i2004-10120-y
Publication status	Published - Apr 2005

Keywords

HYPERDEFORMED CONFIGURATIONS
ROTATING NUCLEI
TRIAXIAL NUCLEI
ODD
BANDS
STATES

Access to Document

10.1140/epja/i2004-10120-y

Cite this

@article{759a3ac1f7ca463e97ca95f37e8fc4b3,

title = "First evidence for chirality in Tc isotopes: Spectroscopy of Tc-100",

abstract = "Excited states in Tc-100 have been studied using the Zr-96(Li-7, 3n) reaction at a beam energy of 27 MeV. In the present work, evidence has been found for a second Delta I = 1 band decaying via several stretched dipole transitions to the previously known Delta I = 1 negative-parity band. Comparison of these data with those in neighbouring nuclei and also against recently reported criteria for chiral bands in nuclei, suggests that the two structures can be interpreted as chiral partners. Core quasi-particle coupling model calculations show reasonable agreement with the data and generally support the chiral interpretation of the states.",

keywords = "HYPERDEFORMED CONFIGURATIONS, ROTATING NUCLEI, TRIAXIAL NUCLEI, ODD, BANDS, STATES",

author = "P Joshi and Wilkinson, {A R} and T Koike and Fossan, {D B} and S Finnigan and Paul, {E S} and Raddon, {P M} and G Rainovski and K Starosta and Simons, {A J} and C Vaman and R Wadsworth",

year = "2005",

month = apr,

doi = "10.1140/epja/i2004-10120-y",

language = "English",

volume = "24",

pages = "23--29",

journal = "European physical journal A : Hadrons & Nuclei",

issn = "1434-6001",

publisher = "Springer",

number = "1",

}

TY - JOUR

T1 - First evidence for chirality in Tc isotopes: Spectroscopy of Tc-100

AU - Joshi, P

AU - Wilkinson, A R

AU - Koike, T

AU - Fossan, D B

AU - Finnigan, S

AU - Paul, E S

AU - Raddon, P M

AU - Rainovski, G

AU - Starosta, K

AU - Simons, A J

AU - Vaman, C

AU - Wadsworth, R

PY - 2005/4

Y1 - 2005/4

N2 - Excited states in Tc-100 have been studied using the Zr-96(Li-7, 3n) reaction at a beam energy of 27 MeV. In the present work, evidence has been found for a second Delta I = 1 band decaying via several stretched dipole transitions to the previously known Delta I = 1 negative-parity band. Comparison of these data with those in neighbouring nuclei and also against recently reported criteria for chiral bands in nuclei, suggests that the two structures can be interpreted as chiral partners. Core quasi-particle coupling model calculations show reasonable agreement with the data and generally support the chiral interpretation of the states.

AB - Excited states in Tc-100 have been studied using the Zr-96(Li-7, 3n) reaction at a beam energy of 27 MeV. In the present work, evidence has been found for a second Delta I = 1 band decaying via several stretched dipole transitions to the previously known Delta I = 1 negative-parity band. Comparison of these data with those in neighbouring nuclei and also against recently reported criteria for chiral bands in nuclei, suggests that the two structures can be interpreted as chiral partners. Core quasi-particle coupling model calculations show reasonable agreement with the data and generally support the chiral interpretation of the states.

KW - HYPERDEFORMED CONFIGURATIONS

KW - ROTATING NUCLEI

KW - TRIAXIAL NUCLEI

KW - ODD

KW - BANDS

KW - STATES

U2 - 10.1140/epja/i2004-10120-y

DO - 10.1140/epja/i2004-10120-y

M3 - Article

SN - 1434-6001

VL - 24

SP - 23

EP - 29

JO - European physical journal A : Hadrons & Nuclei

JF - European physical journal A : Hadrons & Nuclei

IS - 1

ER -