Lifetimes in neutron-rich Nd isotopes measured by a doppler profile method

A. G. Smith; W. R. Phillips; J. L. Durell; W. Urban; B. J. Varley; C. J. Pearson; J. A. Shannon; I. Ahmad; C. J. Lister; L. R. Morss; K. L. Nash; C. W. Williams; M. Bentaleb; E. Lubkiewicz; N. Schulz

Lifetimes in neutron-rich Nd isotopes measured by a doppler profile method

A. G. Smith
, W. R. Phillips
, J. L. Durell
, W. Urban
, B. J. Varley
, C. J. Pearson
, J. A. Shannon
, I. Ahmad
, C. J. Lister
, L. R. Morss
, K. L. Nash
, C. W. Williams
, M. Bentaleb
, E. Lubkiewicz
, N. Schulz

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

Abstract

The Eurogam-1 array has been used to study γ rays emitted following the spontaneous fission of a 248Cm source. Yrast level schemes for the neutron-rich nuclei 152,154,156Nd have been constructed. The stopping of the Nd fragments in the source material leads to Doppler-broadened line shapes for those states that have lifetimes comparable to the stopping time. This paper describes the first measurements of lifetimes of medium-spin states in very neutron-rich nuclei obtained from the analysis of these line shapes. The transition quadrupole moments for the yrast states in the spin range (10-16) ℏ have been deduced to be 5.88 ± 0.08 e b (152Nd), 5.75 ± 0.10 e b (154Nd), and 5.33 ± 0.16 e b (156Nd).

Original language	English
Pages (from-to)	2540-2542
Number of pages	2
Journal	Physical Review Letters
Volume	73
Issue number	19
Publication status	Published - 1994

Cite this

@article{08b4877f85bb43ca82200a19f72ca445,

title = "Lifetimes in neutron-rich Nd isotopes measured by a doppler profile method",

abstract = "The Eurogam-1 array has been used to study γ rays emitted following the spontaneous fission of a 248Cm source. Yrast level schemes for the neutron-rich nuclei 152,154,156Nd have been constructed. The stopping of the Nd fragments in the source material leads to Doppler-broadened line shapes for those states that have lifetimes comparable to the stopping time. This paper describes the first measurements of lifetimes of medium-spin states in very neutron-rich nuclei obtained from the analysis of these line shapes. The transition quadrupole moments for the yrast states in the spin range (10-16) ℏ have been deduced to be 5.88 ± 0.08 e b (152Nd), 5.75 ± 0.10 e b (154Nd), and 5.33 ± 0.16 e b (156Nd).",

author = "Smith, \{A. G.\} and Phillips, \{W. R.\} and Durell, \{J. L.\} and W. Urban and Varley, \{B. J.\} and Pearson, \{C. J.\} and Shannon, \{J. A.\} and I. Ahmad and Lister, \{C. J.\} and Morss, \{L. R.\} and Nash, \{K. L.\} and Williams, \{C. W.\} and M. Bentaleb and E. Lubkiewicz and N. Schulz",

year = "1994",

language = "English",

volume = "73",

pages = "2540--2542",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

}

TY - JOUR

T1 - Lifetimes in neutron-rich Nd isotopes measured by a doppler profile method

AU - Smith, A. G.

AU - Phillips, W. R.

AU - Durell, J. L.

AU - Urban, W.

AU - Varley, B. J.

AU - Pearson, C. J.

AU - Shannon, J. A.

AU - Ahmad, I.

AU - Lister, C. J.

AU - Morss, L. R.

AU - Nash, K. L.

AU - Williams, C. W.

AU - Bentaleb, M.

AU - Lubkiewicz, E.

AU - Schulz, N.

PY - 1994

Y1 - 1994

N2 - The Eurogam-1 array has been used to study γ rays emitted following the spontaneous fission of a 248Cm source. Yrast level schemes for the neutron-rich nuclei 152,154,156Nd have been constructed. The stopping of the Nd fragments in the source material leads to Doppler-broadened line shapes for those states that have lifetimes comparable to the stopping time. This paper describes the first measurements of lifetimes of medium-spin states in very neutron-rich nuclei obtained from the analysis of these line shapes. The transition quadrupole moments for the yrast states in the spin range (10-16) ℏ have been deduced to be 5.88 ± 0.08 e b (152Nd), 5.75 ± 0.10 e b (154Nd), and 5.33 ± 0.16 e b (156Nd).

AB - The Eurogam-1 array has been used to study γ rays emitted following the spontaneous fission of a 248Cm source. Yrast level schemes for the neutron-rich nuclei 152,154,156Nd have been constructed. The stopping of the Nd fragments in the source material leads to Doppler-broadened line shapes for those states that have lifetimes comparable to the stopping time. This paper describes the first measurements of lifetimes of medium-spin states in very neutron-rich nuclei obtained from the analysis of these line shapes. The transition quadrupole moments for the yrast states in the spin range (10-16) ℏ have been deduced to be 5.88 ± 0.08 e b (152Nd), 5.75 ± 0.10 e b (154Nd), and 5.33 ± 0.16 e b (156Nd).

M3 - Article

SN - 0031-9007

VL - 73

SP - 2540

EP - 2542

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

ER -

Lifetimes in neutron-rich Nd isotopes measured by a doppler profile method

Abstract

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