Alpha decay widths of excited states of 16O

Peter Haigh; Martin Freer; Nicholas Ashwood; Thomas Bloxham; Neil Curtis; HG Bohlen; T Dorsch; Tzany Kokalova; Carl Wheldon; WN Catford; NP Patterson; JS Thomas

doi:10.1088/0954-3899/37/3/035103

Alpha decay widths of excited states of ¹⁶O

Peter Haigh, Martin Freer, Nicholas Ashwood, Thomas Bloxham, Neil Curtis, HG Bohlen, T Dorsch, Tzany Kokalova, Carl Wheldon, WN Catford, NP Patterson, JS Thomas

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

8 Citations (Scopus)

Abstract

The 12C(13C, 9Be)16O reaction has been used to populate excited states in 16O. The 9Be nuclei were detected in a magnetic spectrometer and the 12C decay product of the recoiling excited 16O nucleus was detected in an array of silicon strip detectors. The large angular coverage of the strip detector array allowed the α-decay widths of the 14.66 MeV, 5−, and 16.275 MeV, 6+, states to be determined with good accuracy. The present results, together with earlier measurements, allow precise values for the branching ratios to be calculated: Ex(16O) = 14.66 MeV, Jπ = 5−, Γα0/Γ = 0.951 ± 0.049 and Γα1/Γ < 0.05; Ex(16O) = 16.275 MeV, Jπ = 6+, Γα0/Γ = 0.982 ± 0.048 and Γα1/Γ < 0.02.

Original language	English
Article number	035103
Number of pages	10
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	37
Issue number	3
Early online date	22 Jan 2010
DOIs	https://doi.org/10.1088/0954-3899/37/3/035103
Publication status	Published - 1 Mar 2010

Keywords

Nuclear Clustering
Experimental Studies
Light Nuclei

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10.1088/0954-3899/37/3/035103

2 Finished

Birmingham Nuclear Physics Group Rolling Grant
Tungate, G., Lazzeroni, C., Evans, P., Jones, P. & Freer, M.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/08/08 → 31/07/13
Project: Research Councils
Advanced Fellowship - Dr Carl Wheldon
Wheldon, C.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
29/10/07 → 28/10/12
Project: Research

Cite this

@article{c8577681673549509171c5c59311936f,

title = "Alpha decay widths of excited states of 16O",

abstract = "The 12C(13C, 9Be)16O reaction has been used to populate excited states in 16O. The 9Be nuclei were detected in a magnetic spectrometer and the 12C decay product of the recoiling excited 16O nucleus was detected in an array of silicon strip detectors. The large angular coverage of the strip detector array allowed the α-decay widths of the 14.66 MeV, 5−, and 16.275 MeV, 6+, states to be determined with good accuracy. The present results, together with earlier measurements, allow precise values for the branching ratios to be calculated: Ex(16O) = 14.66 MeV, Jπ = 5−, Γα0/Γ = 0.951 ± 0.049 and Γα1/Γ < 0.05; Ex(16O) = 16.275 MeV, Jπ = 6+, Γα0/Γ = 0.982 ± 0.048 and Γα1/Γ < 0.02.",

keywords = "Nuclear Clustering, Experimental Studies, Light Nuclei",

author = "Peter Haigh and Martin Freer and Nicholas Ashwood and Thomas Bloxham and Neil Curtis and HG Bohlen and T Dorsch and Tzany Kokalova and Carl Wheldon and WN Catford and NP Patterson and JS Thomas",

year = "2010",

month = mar,

day = "1",

doi = "10.1088/0954-3899/37/3/035103",

language = "English",

volume = "37",

journal = "Journal of Physics G: Nuclear and Particle Physics",

issn = "0954-3899",

publisher = "IOP Publishing",

number = "3",

}

TY - JOUR

T1 - Alpha decay widths of excited states of 16O

AU - Haigh, Peter

AU - Freer, Martin

AU - Ashwood, Nicholas

AU - Bloxham, Thomas

AU - Curtis, Neil

AU - Bohlen, HG

AU - Dorsch, T

AU - Kokalova, Tzany

AU - Wheldon, Carl

AU - Catford, WN

AU - Patterson, NP

AU - Thomas, JS

PY - 2010/3/1

Y1 - 2010/3/1

N2 - The 12C(13C, 9Be)16O reaction has been used to populate excited states in 16O. The 9Be nuclei were detected in a magnetic spectrometer and the 12C decay product of the recoiling excited 16O nucleus was detected in an array of silicon strip detectors. The large angular coverage of the strip detector array allowed the α-decay widths of the 14.66 MeV, 5−, and 16.275 MeV, 6+, states to be determined with good accuracy. The present results, together with earlier measurements, allow precise values for the branching ratios to be calculated: Ex(16O) = 14.66 MeV, Jπ = 5−, Γα0/Γ = 0.951 ± 0.049 and Γα1/Γ < 0.05; Ex(16O) = 16.275 MeV, Jπ = 6+, Γα0/Γ = 0.982 ± 0.048 and Γα1/Γ < 0.02.

AB - The 12C(13C, 9Be)16O reaction has been used to populate excited states in 16O. The 9Be nuclei were detected in a magnetic spectrometer and the 12C decay product of the recoiling excited 16O nucleus was detected in an array of silicon strip detectors. The large angular coverage of the strip detector array allowed the α-decay widths of the 14.66 MeV, 5−, and 16.275 MeV, 6+, states to be determined with good accuracy. The present results, together with earlier measurements, allow precise values for the branching ratios to be calculated: Ex(16O) = 14.66 MeV, Jπ = 5−, Γα0/Γ = 0.951 ± 0.049 and Γα1/Γ < 0.05; Ex(16O) = 16.275 MeV, Jπ = 6+, Γα0/Γ = 0.982 ± 0.048 and Γα1/Γ < 0.02.

KW - Nuclear Clustering

KW - Experimental Studies

KW - Light Nuclei

U2 - 10.1088/0954-3899/37/3/035103

DO - 10.1088/0954-3899/37/3/035103

M3 - Article

VL - 37

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

SN - 0954-3899

IS - 3

M1 - 035103

ER -

Alpha decay widths of excited states of 16O

Abstract

Keywords

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Projects

Birmingham Nuclear Physics Group Rolling Grant

Advanced Fellowship - Dr Carl Wheldon

Cite this

Alpha decay widths of excited states of ¹⁶O