Analog B ( M 1 ) strengths in the T z = ± 3 2 mirror nuclei Mn 47 and Ti 47

Uthayakumaar, S.; Bentley, M. A.; Yajzey, R.; Bazin, D.; Belarge, J.; Bender, P. C.; Davies, P. J.; Elman, B.; Gade, A.; Haylett, T.; Iwasaki, H.; Kahl, D.; Kobayashi, N.; Longfellow, B.; Lonsdale, S. J.; Lunderberg, E.; Morris, L.; Napoli, D. R.; Pereira-Lopez, X.; Recchia, F.; Simpson, E. C.; Wadsworth, R.; Weisshaar, D.

doi:10.1103/PhysRevC.109.044307

Title: Analog $B (M 1)$ strengths in the $T_{z} = \pm \frac{3}{2}$ mirror nuclei ${}^{47}{Mn}$ and ${}^{47}{Ti}$

Journal Article · 03 April 2024 · Physical Review. C

DOI: https://doi.org/10.1103/PhysRevC.109.044307 · OSTI ID:2333698

Uthayakumaar, S.;

;

; Belarge, J.; Bender, P. C.;

; Elman, B.;

; Haylett, T.;

; Kahl, D.; Kobayashi, N.; Longfellow, B.; Lonsdale, S. J.; Lunderberg, E.; Morris, L.;

;

; Recchia, F. more »

The lifetimes of the first excited ${\frac{7}{2}}^{-}$ states in the $T_{z} = \pm \frac{3}{2}$ mirror nuclei ${}^{47}{Mn}$ and ${}^{47}{Ti}$ have been extracted utilizing the $γ$ -ray line shape method, giving $τ = 687 (36)$ ps and $τ = 331 (15)$ ps respectively. Since these transitions are essentially pure $M 1$ transitions, these results allow for a high-precision comparison of analog $M 1$ strengths in mirror nuclei. The two analog $B (M 1) s$ are observed to be identical to a precision of about $10 %$ . The expected dependence of the transition matrix element with $T_{z}$ has been used to extract the separate isoscalar and isovector components of the transition strength, and the results are discussed in the context of predictions, based on the isospin formalism, regarding analog $B (M 1)$ strengths. Published by the American Physical Society 2024

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Research Organization:: Michigan State University, East Lansing, MI (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC02-05CH11231; SC0014537; SC0023633

OSTI ID:: 2333698

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 4 Vol. 109; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Title: Analog B ( M 1 ) strengths in the T z = ± 3 2 mirror nuclei Mn 47 and Ti 47

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Title: Analog $B (M 1)$ strengths in the $T_{z} = \pm \frac{3}{2}$ mirror nuclei ${}^{47}{Mn}$ and ${}^{47}{Ti}$