Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al.

S. A. Milne; M. A. Bentley; E. C. Simpson; P. Dodsworth; T. Baugher; D. Bazin; J. S. Berryman; A. M. Bruce; P. J. Davies; C. Aa Diget; A. Gade; T. W. Henry; H. Iwasaki; A. Lemasson; S. M. Lenzi; S. McDaniel; D. R. Napoli; A. J. Nichols; A. Ratkiewicz; L. Scruton; S. R. Stroberg; J. A. Tostevin; D. Weisshaar; K. Wimmer; R. Winkler

doi:10.1103/PhysRevC.93.024318

Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al.

S. A. Milne, M. A. Bentley, E. C. Simpson, P. Dodsworth, T. Baugher, D. Bazin, J. S. Berryman, A. M. Bruce, P. J. Davies, C. Aa Diget, A. Gade, T. W. Henry, H. Iwasaki, A. Lemasson, S. M. Lenzi, S. McDaniel, D. R. Napoli, A. J. Nichols, A. Ratkiewicz, L. ScrutonS. R. Stroberg, J. A. Tostevin, D. Weisshaar, K. Wimmer, R. Winkler

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Abstract

Background: The study of excited states in mirror nuclei allows us to extract information on charge-dependent (i.e., isospin-nonconserving) interactions in nuclei. Purpose: To extend previous studies of mirror nuclei in the f72 region, investigating charge symmetry breaking of the strong nuclear force. Methods: γ-ray spectroscopy has been performed for the mirror (Tz=±32) pair Ni53 and Mn53, produced via mirrored one-nucleon knockout reactions. Results: Several new transitions have been identified in Ni53 from which a new level scheme has been constructed. Cross sections for knockout have been analyzed and compared with reaction model calculations where evidence is found for knockout from high-spin isomeric states. Mirror energy differences between isobaric analog states have been computed, compared to large scale shell-model calculations, and interpreted in terms of isospin-nonconserving effects. In addition, lifetimes for the long-lived Jπ=521- analog states in both Mn53 and Ni53 have been extracted through lineshape analysis, giving half-lives of t12=120(14) ps and t12=198(12) ps, respectively. Conclusions: The inclusion of a set of isovector isospin-nonconserving matrix elements to the shell-model calculations gave the best agreement with the experimental data.

Original language	English
Article number	024318
Journal	Physical Review C
Volume	93
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.93.024318
Publication status	Published - 24 Feb 2016

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Milne, S. A., Bentley, M. A., Simpson, E. C., Dodsworth, P., Baugher, T., Bazin, D., Berryman, J. S., Bruce, A. M., Davies, P. J., Diget, C. A., Gade, A., Henry, T. W., Iwasaki, H., Lemasson, A., Lenzi, S. M., McDaniel, S., Napoli, D. R., Nichols, A. J., Ratkiewicz, A., ... Winkler, R. (2016). Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al. Physical Review C, 93(2), Article 024318. https://doi.org/10.1103/PhysRevC.93.024318

@article{92e9734d8a224a06b3e1ae847ad0616e,

title = "Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al.",

abstract = "Background: The study of excited states in mirror nuclei allows us to extract information on charge-dependent (i.e., isospin-nonconserving) interactions in nuclei. Purpose: To extend previous studies of mirror nuclei in the f72 region, investigating charge symmetry breaking of the strong nuclear force. Methods: γ-ray spectroscopy has been performed for the mirror (Tz=±32) pair Ni53 and Mn53, produced via mirrored one-nucleon knockout reactions. Results: Several new transitions have been identified in Ni53 from which a new level scheme has been constructed. Cross sections for knockout have been analyzed and compared with reaction model calculations where evidence is found for knockout from high-spin isomeric states. Mirror energy differences between isobaric analog states have been computed, compared to large scale shell-model calculations, and interpreted in terms of isospin-nonconserving effects. In addition, lifetimes for the long-lived Jπ=521- analog states in both Mn53 and Ni53 have been extracted through lineshape analysis, giving half-lives of t12=120(14) ps and t12=198(12) ps, respectively. Conclusions: The inclusion of a set of isovector isospin-nonconserving matrix elements to the shell-model calculations gave the best agreement with the experimental data.",

author = "Milne, {S. A.} and Bentley, {M. A.} and Simpson, {E. C.} and P. Dodsworth and T. Baugher and D. Bazin and Berryman, {J. S.} and Bruce, {A. M.} and Davies, {P. J.} and Diget, {C. Aa} and A. Gade and Henry, {T. W.} and H. Iwasaki and A. Lemasson and Lenzi, {S. M.} and S. McDaniel and Napoli, {D. R.} and Nichols, {A. J.} and A. Ratkiewicz and L. Scruton and Stroberg, {S. R.} and Tostevin, {J. A.} and D. Weisshaar and K. Wimmer and R. Winkler",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = feb,

day = "24",

doi = "10.1103/PhysRevC.93.024318",

language = "English",

volume = "93",

journal = "Physical Review C",

issn = "2469-9985",

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Milne, SA, Bentley, MA, Simpson, EC, Dodsworth, P, Baugher, T, Bazin, D, Berryman, JS, Bruce, AM, Davies, PJ, Diget, CA, Gade, A, Henry, TW, Iwasaki, H, Lemasson, A, Lenzi, SM, McDaniel, S, Napoli, DR, Nichols, AJ, Ratkiewicz, A, Scruton, L, Stroberg, SR, Tostevin, JA, Weisshaar, D, Wimmer, K & Winkler, R 2016, 'Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al.', Physical Review C, vol. 93, no. 2, 024318. https://doi.org/10.1103/PhysRevC.93.024318

TY - JOUR

T1 - Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al.

AU - Milne, S. A.

AU - Bentley, M. A.

AU - Simpson, E. C.

AU - Dodsworth, P.

AU - Baugher, T.

AU - Bazin, D.

AU - Berryman, J. S.

AU - Bruce, A. M.

AU - Davies, P. J.

AU - Diget, C. Aa

AU - Gade, A.

AU - Henry, T. W.

AU - Iwasaki, H.

AU - Lemasson, A.

AU - Lenzi, S. M.

AU - McDaniel, S.

AU - Napoli, D. R.

AU - Nichols, A. J.

AU - Ratkiewicz, A.

AU - Scruton, L.

AU - Stroberg, S. R.

AU - Tostevin, J. A.

AU - Weisshaar, D.

AU - Wimmer, K.

AU - Winkler, R.

PY - 2016/2/24

Y1 - 2016/2/24

N2 - Background: The study of excited states in mirror nuclei allows us to extract information on charge-dependent (i.e., isospin-nonconserving) interactions in nuclei. Purpose: To extend previous studies of mirror nuclei in the f72 region, investigating charge symmetry breaking of the strong nuclear force. Methods: γ-ray spectroscopy has been performed for the mirror (Tz=±32) pair Ni53 and Mn53, produced via mirrored one-nucleon knockout reactions. Results: Several new transitions have been identified in Ni53 from which a new level scheme has been constructed. Cross sections for knockout have been analyzed and compared with reaction model calculations where evidence is found for knockout from high-spin isomeric states. Mirror energy differences between isobaric analog states have been computed, compared to large scale shell-model calculations, and interpreted in terms of isospin-nonconserving effects. In addition, lifetimes for the long-lived Jπ=521- analog states in both Mn53 and Ni53 have been extracted through lineshape analysis, giving half-lives of t12=120(14) ps and t12=198(12) ps, respectively. Conclusions: The inclusion of a set of isovector isospin-nonconserving matrix elements to the shell-model calculations gave the best agreement with the experimental data.

AB - Background: The study of excited states in mirror nuclei allows us to extract information on charge-dependent (i.e., isospin-nonconserving) interactions in nuclei. Purpose: To extend previous studies of mirror nuclei in the f72 region, investigating charge symmetry breaking of the strong nuclear force. Methods: γ-ray spectroscopy has been performed for the mirror (Tz=±32) pair Ni53 and Mn53, produced via mirrored one-nucleon knockout reactions. Results: Several new transitions have been identified in Ni53 from which a new level scheme has been constructed. Cross sections for knockout have been analyzed and compared with reaction model calculations where evidence is found for knockout from high-spin isomeric states. Mirror energy differences between isobaric analog states have been computed, compared to large scale shell-model calculations, and interpreted in terms of isospin-nonconserving effects. In addition, lifetimes for the long-lived Jπ=521- analog states in both Mn53 and Ni53 have been extracted through lineshape analysis, giving half-lives of t12=120(14) ps and t12=198(12) ps, respectively. Conclusions: The inclusion of a set of isovector isospin-nonconserving matrix elements to the shell-model calculations gave the best agreement with the experimental data.

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U2 - 10.1103/PhysRevC.93.024318

DO - 10.1103/PhysRevC.93.024318

M3 - Article

SN - 2469-9985

VL - 93

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024318

ER -

Mirrored one-nucleon knockout reactions to the Tz=± 32 A=53 mirror nuclei MIRRORED ONE-NUCLEON KNOCKOUT REACTIONS to ⋯ S. A. MILNE et al.

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