Lifetimes of excited states in 54Mn and 53Cr

D. C. Radford; A. R. Poletti

doi:10.1088/0305-4616/5/3/011

Lifetimes of excited states in ⁵⁴Mn and ⁵³Cr

D. C. Radford, A. R. Poletti

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Abstract

The recoil-distance method has been used in conjunction with the ⁵¹V( alpha ,n) and ⁵⁰Ti( alpha ,n) reactions to investigate the lifetimes of four levels in ⁵⁴Mn and four in ⁵³Cr. The mean lives obtained are as follows: ⁵³Cr (E _x=1006 keV), tau <2.5 ps; ⁵³Cr (E_x=1537 keV), tau =33.2+or-1.6 ps; ⁵³Cr (E_x=2173 keV), tau =13.9+or-1.1 ps;⁵³Cr (E_x=2707 keV), tau =3.4+or-1.4 ps; ⁵⁴Mn (E_x=156 keV), tau =302+or-24 ps; ⁵⁴Mn (E_x=368 keV), tau =8.9+or-1.9 ps;⁵⁴Mn (E_x=408 keV), tau=2.7+or-0.8 ps; ⁵⁴Mn (1073 keV), tau =321+or-13 ps. In addition, the oppler-shift attenuation method has been used to investigate ten lifetimes in ⁵³Cr and fourteen in ⁵⁴Mn. The results extracted are discussed, and compared with previous experiments and with theoretical predictions.

Original language	English
Article number	011
Pages (from-to)	409-422
Number of pages	14
Journal	Journal of Physics G: Nuclear Physics
Volume	5
Issue number	3
DOIs	https://doi.org/10.1088/0305-4616/5/3/011
State	Published - 1979
Externally published	Yes

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title = "Lifetimes of excited states in 54Mn and 53Cr",

abstract = "The recoil-distance method has been used in conjunction with the 51V( alpha ,n) and 50Ti( alpha ,n) reactions to investigate the lifetimes of four levels in 54Mn and four in 53Cr. The mean lives obtained are as follows: 53Cr (E x=1006 keV), tau <2.5 ps; 53Cr (Ex=1537 keV), tau =33.2+or-1.6 ps; 53Cr (Ex=2173 keV), tau =13.9+or-1.1 ps;53Cr (Ex=2707 keV), tau =3.4+or-1.4 ps; 54Mn (Ex=156 keV), tau =302+or-24 ps; 54Mn (Ex=368 keV), tau =8.9+or-1.9 ps;54Mn (Ex=408 keV), tau=2.7+or-0.8 ps; 54Mn (1073 keV), tau =321+or-13 ps. In addition, the oppler-shift attenuation method has been used to investigate ten lifetimes in 53Cr and fourteen in 54Mn. The results extracted are discussed, and compared with previous experiments and with theoretical predictions.",

author = "Radford, {D. C.} and Poletti, {A. R.}",

year = "1979",

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T1 - Lifetimes of excited states in 54Mn and 53Cr

AU - Radford, D. C.

AU - Poletti, A. R.

PY - 1979

Y1 - 1979

N2 - The recoil-distance method has been used in conjunction with the 51V( alpha ,n) and 50Ti( alpha ,n) reactions to investigate the lifetimes of four levels in 54Mn and four in 53Cr. The mean lives obtained are as follows: 53Cr (E x=1006 keV), tau <2.5 ps; 53Cr (Ex=1537 keV), tau =33.2+or-1.6 ps; 53Cr (Ex=2173 keV), tau =13.9+or-1.1 ps;53Cr (Ex=2707 keV), tau =3.4+or-1.4 ps; 54Mn (Ex=156 keV), tau =302+or-24 ps; 54Mn (Ex=368 keV), tau =8.9+or-1.9 ps;54Mn (Ex=408 keV), tau=2.7+or-0.8 ps; 54Mn (1073 keV), tau =321+or-13 ps. In addition, the oppler-shift attenuation method has been used to investigate ten lifetimes in 53Cr and fourteen in 54Mn. The results extracted are discussed, and compared with previous experiments and with theoretical predictions.

AB - The recoil-distance method has been used in conjunction with the 51V( alpha ,n) and 50Ti( alpha ,n) reactions to investigate the lifetimes of four levels in 54Mn and four in 53Cr. The mean lives obtained are as follows: 53Cr (E x=1006 keV), tau <2.5 ps; 53Cr (Ex=1537 keV), tau =33.2+or-1.6 ps; 53Cr (Ex=2173 keV), tau =13.9+or-1.1 ps;53Cr (Ex=2707 keV), tau =3.4+or-1.4 ps; 54Mn (Ex=156 keV), tau =302+or-24 ps; 54Mn (Ex=368 keV), tau =8.9+or-1.9 ps;54Mn (Ex=408 keV), tau=2.7+or-0.8 ps; 54Mn (1073 keV), tau =321+or-13 ps. In addition, the oppler-shift attenuation method has been used to investigate ten lifetimes in 53Cr and fourteen in 54Mn. The results extracted are discussed, and compared with previous experiments and with theoretical predictions.

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DO - 10.1088/0305-4616/5/3/011

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JO - Journal of Physics G: Nuclear Physics

JF - Journal of Physics G: Nuclear Physics

IS - 3

M1 - 011

ER -

Lifetimes of excited states in ⁵⁴Mn and ⁵³Cr

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