STUDY OF EXCITED-LEVELS IN PM-147

JL DURELL; WR PHILLIPS; BJ VARLEY; CP HESS; MA JONES; CJ PEARSON; WJ VERMEER; C VIEU; JS DIONISIO; M PAUTRAT; JC BACELAR; W Urban

STUDY OF EXCITED-LEVELS IN PM-147

JL DURELL
, WR PHILLIPS
, BJ VARLEY
, CP HESS
, MA JONES
, CJ PEARSON
, WJ VERMEER
, C VIEU
, JS DIONISIO
, M PAUTRAT
, JC BACELAR
, W Urban

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

19 Citations (Scopus)

Abstract

Excited states in Pm-147 have been studied through the Xe-136(N-15,4n) and Nd-148(d,3n) compound nucleus reactions. A solid xenon target has been used to populate high-spin states in Pm-147. Conversion coefficients of weak transitions were determined measuring electron-gamma coincidences, The half-life of the isomeric level at 649.3 keV has been remeasured to be 27 +/- 3 ns. An extended level scheme is proposed, which is discussed in terms of single-particle excitations and collective quadrupole and octupole vibrations coupled to them, The possible presence of octupole deformation is considered.

Original language	English
Pages (from-to)	541-561
Number of pages	21
Journal	Nuclear Physics A
Volume	587
Issue number	3
Publication status	Published - 15-May-1995

Keywords

XE-136(N-15,4N)
E=78 MEV AND ND-148(D,3N)
E=18 MEV
MEASURED GAMMA-GAMMA-T
R(DCO)
I-GAMMA
E-GAMMA
PM-147 DEDUCED LEVELS
J
PI
T-1/2
ICC
GAMMA-RAY INTENSITY
BRANCHINGS
MULTIPARTICLE CONFIGURATIONS
OCTUPOLE DEFORMATION
INTRINSIC REFLECTION ASYMMETRY
NUCLEI
REGION

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title = "STUDY OF EXCITED-LEVELS IN PM-147",

abstract = "Excited states in Pm-147 have been studied through the Xe-136(N-15,4n) and Nd-148(d,3n) compound nucleus reactions. A solid xenon target has been used to populate high-spin states in Pm-147. Conversion coefficients of weak transitions were determined measuring electron-gamma coincidences, The half-life of the isomeric level at 649.3 keV has been remeasured to be 27 +/- 3 ns. An extended level scheme is proposed, which is discussed in terms of single-particle excitations and collective quadrupole and octupole vibrations coupled to them, The possible presence of octupole deformation is considered.",

keywords = "XE-136(N-15,4N), E=78 MEV AND ND-148(D,3N), E=18 MEV, MEASURED GAMMA-GAMMA-T, R(DCO), I-GAMMA, E-GAMMA, PM-147 DEDUCED LEVELS, J, PI, T-1/2, ICC, GAMMA-RAY INTENSITY, BRANCHINGS, MULTIPARTICLE CONFIGURATIONS, OCTUPOLE DEFORMATION, INTRINSIC REFLECTION ASYMMETRY, NUCLEI, REGION",

author = "JL DURELL and WR PHILLIPS and BJ VARLEY and CP HESS and MA JONES and CJ PEARSON and WJ VERMEER and C VIEU and JS DIONISIO and M PAUTRAT and JC BACELAR and W Urban",

year = "1995",

month = may,

day = "15",

language = "English",

volume = "587",

pages = "541--561",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "ELSEVIER SCIENCE BV",

number = "3",

}

TY - JOUR

T1 - STUDY OF EXCITED-LEVELS IN PM-147

AU - DURELL, JL

AU - PHILLIPS, WR

AU - VARLEY, BJ

AU - HESS, CP

AU - JONES, MA

AU - PEARSON, CJ

AU - VERMEER, WJ

AU - VIEU, C

AU - DIONISIO, JS

AU - PAUTRAT, M

AU - BACELAR, JC

AU - Urban, W

PY - 1995/5/15

Y1 - 1995/5/15

N2 - Excited states in Pm-147 have been studied through the Xe-136(N-15,4n) and Nd-148(d,3n) compound nucleus reactions. A solid xenon target has been used to populate high-spin states in Pm-147. Conversion coefficients of weak transitions were determined measuring electron-gamma coincidences, The half-life of the isomeric level at 649.3 keV has been remeasured to be 27 +/- 3 ns. An extended level scheme is proposed, which is discussed in terms of single-particle excitations and collective quadrupole and octupole vibrations coupled to them, The possible presence of octupole deformation is considered.

AB - Excited states in Pm-147 have been studied through the Xe-136(N-15,4n) and Nd-148(d,3n) compound nucleus reactions. A solid xenon target has been used to populate high-spin states in Pm-147. Conversion coefficients of weak transitions were determined measuring electron-gamma coincidences, The half-life of the isomeric level at 649.3 keV has been remeasured to be 27 +/- 3 ns. An extended level scheme is proposed, which is discussed in terms of single-particle excitations and collective quadrupole and octupole vibrations coupled to them, The possible presence of octupole deformation is considered.

KW - XE-136(N-15,4N)

KW - E=78 MEV AND ND-148(D,3N)

KW - E=18 MEV

KW - MEASURED GAMMA-GAMMA-T

KW - R(DCO)

KW - I-GAMMA

KW - E-GAMMA

KW - PM-147 DEDUCED LEVELS

KW - J

KW - PI

KW - T-1/2

KW - ICC

KW - GAMMA-RAY INTENSITY

KW - BRANCHINGS

KW - MULTIPARTICLE CONFIGURATIONS

KW - OCTUPOLE DEFORMATION

KW - INTRINSIC REFLECTION ASYMMETRY

KW - NUCLEI

KW - REGION

M3 - Article

SN - 0375-9474

VL - 587

SP - 541

EP - 561

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 3

ER -

STUDY OF EXCITED-LEVELS IN PM-147

Abstract

Keywords

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