Test of isospin purity in the A=42 isobaric analogs

J. N. Orce; P. Petkov; C. J. McKay; S. N. Choudry; S. R. Lesher; M. Mynk; D. Bandyopadhyay; S. W. Yates; M. T. McEllistrem

doi:10.1103/PhysRevC.70.014314

Test of isospin purity in the A=42 isobaric analogs

J. N. Orce, P. Petkov, C. J. McKay, S. N. Choudry, S. R. Lesher, M. Mynk, D. Bandyopadhyay, S. W. Yates, M. T. McEllistrem

Chemistry

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11 Scopus citations

Abstract

A careful measurement of the lifetime of the first 2_T=1 ⁺ state in ⁴²Sc has allowed an accurate experimental test of isospin purity in the A=42 isobaric analogs by using the isospin formalism. A lifetime of 69 (18) fs has been determined, giving an isoscalar matrix element of 6.8 (8) W.u. Previous measurements of the lifetimes in the mirror nuclei ⁴²Ca and ⁴²Ti provided an isoscalar matrix element of 7.1 (5) W.u. which is very close to the presently measured value for ⁴²Sc.

Original language	English
Article number	014314
Pages (from-to)	014314-1-014314-5
Journal	Physical Review C - Nuclear Physics
Volume	70
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.70.014314
State	Published - Jul 2004

Bibliographical note

Funding Information:
This work was supported by the U.S. National Science Foundation under Grant Nos. PHY-0098813 and PHY-0354656.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.70.014314

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title = "Test of isospin purity in the A=42 isobaric analogs",

abstract = "A careful measurement of the lifetime of the first 2T=1 + state in 42Sc has allowed an accurate experimental test of isospin purity in the A=42 isobaric analogs by using the isospin formalism. A lifetime of 69 (18) fs has been determined, giving an isoscalar matrix element of 6.8 (8) W.u. Previous measurements of the lifetimes in the mirror nuclei 42Ca and 42Ti provided an isoscalar matrix element of 7.1 (5) W.u. which is very close to the presently measured value for 42Sc.",

author = "Orce, {J. N.} and P. Petkov and McKay, {C. J.} and Choudry, {S. N.} and Lesher, {S. R.} and M. Mynk and D. Bandyopadhyay and Yates, {S. W.} and McEllistrem, {M. T.}",

note = "Funding Information: This work was supported by the U.S. National Science Foundation under Grant Nos. PHY-0098813 and PHY-0354656.",

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doi = "10.1103/PhysRevC.70.014314",

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AU - Orce, J. N.

AU - Petkov, P.

AU - McKay, C. J.

AU - Choudry, S. N.

AU - Lesher, S. R.

AU - Mynk, M.

AU - Bandyopadhyay, D.

AU - Yates, S. W.

AU - McEllistrem, M. T.

N1 - Funding Information: This work was supported by the U.S. National Science Foundation under Grant Nos. PHY-0098813 and PHY-0354656.

PY - 2004/7

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N2 - A careful measurement of the lifetime of the first 2T=1 + state in 42Sc has allowed an accurate experimental test of isospin purity in the A=42 isobaric analogs by using the isospin formalism. A lifetime of 69 (18) fs has been determined, giving an isoscalar matrix element of 6.8 (8) W.u. Previous measurements of the lifetimes in the mirror nuclei 42Ca and 42Ti provided an isoscalar matrix element of 7.1 (5) W.u. which is very close to the presently measured value for 42Sc.

AB - A careful measurement of the lifetime of the first 2T=1 + state in 42Sc has allowed an accurate experimental test of isospin purity in the A=42 isobaric analogs by using the isospin formalism. A lifetime of 69 (18) fs has been determined, giving an isoscalar matrix element of 6.8 (8) W.u. Previous measurements of the lifetimes in the mirror nuclei 42Ca and 42Ti provided an isoscalar matrix element of 7.1 (5) W.u. which is very close to the presently measured value for 42Sc.

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Test of isospin purity in the A=42 isobaric analogs

Abstract

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