Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67

R. Orlandi; G. de Angelis; P. G. Bizzeti; S. Lunardi; A. Gadea; A. M. Bizzeti-Sona; A. Bracco; F. Brandolini; M. P. Carpenter; C. J. Chiara; F. Della Vedova; E. Farnea; J. P. Greene; S. M. Lenzi; S. Leoni; C. J. Lister; N. Marginean; D. Mengoni; D. R. Napoli; B. S. Nara Singh; O. L. Pechenaya; F. Recchia; W. Reviol; E. Sahin; D. G. Sarantites; D. Seweryniak; D. Tonev; C. A. Ur; J. J. Valiente-Dobon; R. Wadsworth; K. T. Wiedemann; S. Zhu

doi:10.1103/PhysRevLett.103.052501

Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67

R. Orlandi, G. de Angelis, P. G. Bizzeti, S. Lunardi, A. Gadea, A. M. Bizzeti-Sona, A. Bracco, F. Brandolini, M. P. Carpenter, C. J. Chiara, F. Della Vedova, E. Farnea, J. P. Greene, S. M. Lenzi, S. Leoni, C. J. Lister, N. Marginean, D. Mengoni, D. R. Napoli, B. S. Nara SinghO. L. Pechenaya, F. Recchia, W. Reviol, E. Sahin, D. G. Sarantites, D. Seweryniak, D. Tonev, C. A. Ur, J. J. Valiente-Dobon, R. Wadsworth, K. T. Wiedemann, S. Zhu

Physics

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Abstract

Isospin symmetry breaking has been investigated in mass A = 67 mirror nuclei through the experimental determination of the E1 strengths of analog electromagnetic transitions. Lifetimes of excited states have been measured in Se-67 and As-67 with the centroid shift method. Through the comparison of the B(E1) strengths of the mirror 9/2(+) -> 7/2(-) transitions, the isovector and the isoscalar components of the electromagnetic transition amplitude were extracted. The presence of a large isoscalar component provides evidence for coherent contributions to isospin mixing, probably involving the isovector giant monopole resonance.

Original language	English
Article number	052501
Pages (from-to)	-
Number of pages	4
Journal	Physical Review Letters
Volume	103
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.103.052501
Publication status	Published - 31 Jul 2009

Keywords

GAMMASPHERE
STATES
SHELL
DETECTORS

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Orlandi, R., de Angelis, G., Bizzeti, P. G., Lunardi, S., Gadea, A., Bizzeti-Sona, A. M., Bracco, A., Brandolini, F., Carpenter, M. P., Chiara, C. J., Della Vedova, F., Farnea, E., Greene, J. P., Lenzi, S. M., Leoni, S., Lister, C. J., Marginean, N., Mengoni, D., Napoli, D. R., ... Zhu, S. (2009). Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67. Physical Review Letters, 103(5), -. Article 052501. https://doi.org/10.1103/PhysRevLett.103.052501

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title = "Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67",

abstract = "Isospin symmetry breaking has been investigated in mass A = 67 mirror nuclei through the experimental determination of the E1 strengths of analog electromagnetic transitions. Lifetimes of excited states have been measured in Se-67 and As-67 with the centroid shift method. Through the comparison of the B(E1) strengths of the mirror 9/2(+) -> 7/2(-) transitions, the isovector and the isoscalar components of the electromagnetic transition amplitude were extracted. The presence of a large isoscalar component provides evidence for coherent contributions to isospin mixing, probably involving the isovector giant monopole resonance.",

keywords = "GAMMASPHERE, STATES, SHELL, DETECTORS",

author = "R. Orlandi and {de Angelis}, G. and Bizzeti, {P. G.} and S. Lunardi and A. Gadea and Bizzeti-Sona, {A. M.} and A. Bracco and F. Brandolini and Carpenter, {M. P.} and Chiara, {C. J.} and {Della Vedova}, F. and E. Farnea and Greene, {J. P.} and Lenzi, {S. M.} and S. Leoni and Lister, {C. J.} and N. Marginean and D. Mengoni and Napoli, {D. R.} and Singh, {B. S. Nara} and Pechenaya, {O. L.} and F. Recchia and W. Reviol and E. Sahin and Sarantites, {D. G.} and D. Seweryniak and D. Tonev and Ur, {C. A.} and Valiente-Dobon, {J. J.} and R. Wadsworth and Wiedemann, {K. T.} and S. Zhu",

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Orlandi, R, de Angelis, G, Bizzeti, PG, Lunardi, S, Gadea, A, Bizzeti-Sona, AM, Bracco, A, Brandolini, F, Carpenter, MP, Chiara, CJ, Della Vedova, F, Farnea, E, Greene, JP, Lenzi, SM, Leoni, S, Lister, CJ, Marginean, N, Mengoni, D, Napoli, DR, Singh, BSN, Pechenaya, OL, Recchia, F, Reviol, W, Sahin, E, Sarantites, DG, Seweryniak, D, Tonev, D, Ur, CA, Valiente-Dobon, JJ, Wadsworth, R, Wiedemann, KT & Zhu, S 2009, 'Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67', Physical Review Letters, vol. 103, no. 5, 052501, pp. -. https://doi.org/10.1103/PhysRevLett.103.052501

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T1 - Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67

AU - Orlandi, R.

AU - de Angelis, G.

AU - Bizzeti, P. G.

AU - Lunardi, S.

AU - Gadea, A.

AU - Bizzeti-Sona, A. M.

AU - Bracco, A.

AU - Brandolini, F.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Della Vedova, F.

AU - Farnea, E.

AU - Greene, J. P.

AU - Lenzi, S. M.

AU - Leoni, S.

AU - Lister, C. J.

AU - Marginean, N.

AU - Mengoni, D.

AU - Napoli, D. R.

AU - Singh, B. S. Nara

AU - Pechenaya, O. L.

AU - Recchia, F.

AU - Reviol, W.

AU - Sahin, E.

AU - Sarantites, D. G.

AU - Seweryniak, D.

AU - Tonev, D.

AU - Ur, C. A.

AU - Valiente-Dobon, J. J.

AU - Wadsworth, R.

AU - Wiedemann, K. T.

AU - Zhu, S.

PY - 2009/7/31

Y1 - 2009/7/31

N2 - Isospin symmetry breaking has been investigated in mass A = 67 mirror nuclei through the experimental determination of the E1 strengths of analog electromagnetic transitions. Lifetimes of excited states have been measured in Se-67 and As-67 with the centroid shift method. Through the comparison of the B(E1) strengths of the mirror 9/2(+) -> 7/2(-) transitions, the isovector and the isoscalar components of the electromagnetic transition amplitude were extracted. The presence of a large isoscalar component provides evidence for coherent contributions to isospin mixing, probably involving the isovector giant monopole resonance.

AB - Isospin symmetry breaking has been investigated in mass A = 67 mirror nuclei through the experimental determination of the E1 strengths of analog electromagnetic transitions. Lifetimes of excited states have been measured in Se-67 and As-67 with the centroid shift method. Through the comparison of the B(E1) strengths of the mirror 9/2(+) -> 7/2(-) transitions, the isovector and the isoscalar components of the electromagnetic transition amplitude were extracted. The presence of a large isoscalar component provides evidence for coherent contributions to isospin mixing, probably involving the isovector giant monopole resonance.

KW - GAMMASPHERE

KW - STATES

KW - SHELL

KW - DETECTORS

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U2 - 10.1103/PhysRevLett.103.052501

DO - 10.1103/PhysRevLett.103.052501

M3 - Article

SN - 0031-9007

VL - 103

SP - -

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 052501

ER -

Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67

Abstract

Keywords

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