Transition quadrupole moments in {sup 84}Zr

Journal Article · Thu Feb 01 04:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.1001· OSTI ID:278816

Chattopadhyay, S; Jain, H C; Sheikh, J A ^[1]

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1. Tata Institute of Fundamental Research, Bombay 400 005 (India)

The high spin levels in {sup 84}Zr have been populated through the {sup 59}Co({sup 28}Si,{ital p}2{ital n}) reaction using 98 MeV {sup 28}Si beam. Lifetime measurements for the 20{sup +} and 22{sup +} levels in the yrast positive parity band using the line-shape analysis method gave values nearly a factor of 2.5 larger compared to those reported earlier{emdash}indicating a smaller deformation at high spins for {sup 84}Zr. The transition quadrupole moments obtained from the present measurements show a decrease at {ital I}{approximately}8{h_bar} and an increase at {ital I}{approximately}16{h_bar}. Theoretical calculations using the Nilsson model with the Woods-Saxon potential show that this decrease (increase) is directly related to the 2{ital p} (2{ital n}) alignment in high (low) {Omega} orbitals. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 278816
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 53; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALIGNMENT
COBALT 59 REACTIONS
DEFORMATION
HIGH SPIN STATES
LIFETIME
NILSSON-MOTTELSON MODEL
ORBITS
PARITY
QUADRUPOLE MOMENTS
SHAPE
SILICON 28 TARGET
WOODS-SAXON POTENTIAL
YRAST STATES
ZIRCONIUM 84