Spectroscopy of the T = 2 mirror nuclei 48Fe/48Ti using mirrored knockout reactions

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

doi:10.1016/j.physletb.2021.136757

Spectroscopy of the T = 2 mirror nuclei ⁴⁸Fe/⁴⁸Ti using mirrored knockout reactions

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

A sequence of excited states has been established for the first time in the proton-rich nucleus ⁴⁸Fe (Z=26, N=22). The technique of mirrored (i.e. analogue) one-nucleon knockout reactions was applied, in which the T_z= ±2 mirror pair, ⁴⁸Fe/⁴⁸Ti were populated via one-neutron/one-proton knockout from the secondary beams ⁴⁹Fe/⁴⁹V, respectively. The analogue properties of the reactions were used to help establish the new level scheme of ⁴⁸Fe. The inclusive and exclusive cross sections were determined for the populated states. Large differences between the cross sections for the two mirrored reactions were observed and have been interpreted in terms of different degrees of binding of the mirror nuclei and in the context of the recent observations of suppression of spectroscopic strength as a function of nuclear binding, for knockout reactions on light solid targets. Mirror energy differences (MED) have been determined between the analogue T=2 states and compared with the shell model predictions. MED for this mirror pair, due to their location in the shell, are especially sensitive to excitations out of the f_7/2 shell, and present a stringent test of the shell-model prescription.

Original language	English
Article number	136757
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	823
DOIs	https://doi.org/10.1016/j.physletb.2021.136757
Publication status	Published - 10 Dec 2021

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Yajzey, R., Bentley, M. A., Simpson, E. C., Haylett, T., Uthayakumaar, S., Bazin, D., Belarge, J., Bender, P. C., Davies, P. J., Elman, B., Gade, A., Iwasaki, H., Kahl, D., Kobayashi, N., Lenzi, S. M., Longfellow, B., Lonsdale, S. J., Lunderberg, E., Morris, L., ... Weisshaar, D. (2021). Spectroscopy of the T = 2 mirror nuclei ⁴⁸Fe/⁴⁸Ti using mirrored knockout reactions. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 823, Article 136757. https://doi.org/10.1016/j.physletb.2021.136757

@article{d764eca0fcab4746a10f5f7138379263,

title = "Spectroscopy of the T = 2 mirror nuclei 48Fe/48Ti using mirrored knockout reactions",

abstract = "A sequence of excited states has been established for the first time in the proton-rich nucleus 48Fe (Z=26, N=22). The technique of mirrored (i.e. analogue) one-nucleon knockout reactions was applied, in which the Tz= ±2 mirror pair, 48Fe/48Ti were populated via one-neutron/one-proton knockout from the secondary beams 49Fe/49V, respectively. The analogue properties of the reactions were used to help establish the new level scheme of 48Fe. The inclusive and exclusive cross sections were determined for the populated states. Large differences between the cross sections for the two mirrored reactions were observed and have been interpreted in terms of different degrees of binding of the mirror nuclei and in the context of the recent observations of suppression of spectroscopic strength as a function of nuclear binding, for knockout reactions on light solid targets. Mirror energy differences (MED) have been determined between the analogue T=2 states and compared with the shell model predictions. MED for this mirror pair, due to their location in the shell, are especially sensitive to excitations out of the f7/2 shell, and present a stringent test of the shell-model prescription.",

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

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

month = dec,

day = "10",

doi = "10.1016/j.physletb.2021.136757",

language = "English",

volume = "823",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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Yajzey, R, Bentley, MA, Simpson, EC, Haylett, T, Uthayakumaar, S, Bazin, D, Belarge, J, Bender, PC, Davies, PJ, Elman, B, Gade, A, Iwasaki, H, Kahl, D, Kobayashi, N, Lenzi, SM, Longfellow, B, Lonsdale, SJ, Lunderberg, E, Morris, L, Napoli, DR, Pereira-Lopez, X, Recchia, F, Tostevin, JA, Wadsworth, R & Weisshaar, D 2021, 'Spectroscopy of the T = 2 mirror nuclei ⁴⁸Fe/⁴⁸Ti using mirrored knockout reactions', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 823, 136757. https://doi.org/10.1016/j.physletb.2021.136757

TY - JOUR

T1 - Spectroscopy of the T = 2 mirror nuclei 48Fe/48Ti using mirrored knockout reactions

AU - Yajzey, R.

AU - Bentley, M. A.

AU - Simpson, E. C.

AU - Haylett, T.

AU - Uthayakumaar, S.

AU - Bazin, D.

AU - Belarge, J.

AU - Bender, P. C.

AU - Davies, P. J.

AU - Elman, B.

AU - Gade, A.

AU - Iwasaki, H.

AU - Kahl, D.

AU - Kobayashi, N.

AU - Lenzi, S. M.

AU - Longfellow, B.

AU - Lonsdale, S. J.

AU - Lunderberg, E.

AU - Morris, L.

AU - Napoli, D. R.

AU - Pereira-Lopez, X.

AU - Recchia, F.

AU - Tostevin, J. A.

AU - Wadsworth, R.

AU - Weisshaar, D.

PY - 2021/12/10

Y1 - 2021/12/10

N2 - A sequence of excited states has been established for the first time in the proton-rich nucleus 48Fe (Z=26, N=22). The technique of mirrored (i.e. analogue) one-nucleon knockout reactions was applied, in which the Tz= ±2 mirror pair, 48Fe/48Ti were populated via one-neutron/one-proton knockout from the secondary beams 49Fe/49V, respectively. The analogue properties of the reactions were used to help establish the new level scheme of 48Fe. The inclusive and exclusive cross sections were determined for the populated states. Large differences between the cross sections for the two mirrored reactions were observed and have been interpreted in terms of different degrees of binding of the mirror nuclei and in the context of the recent observations of suppression of spectroscopic strength as a function of nuclear binding, for knockout reactions on light solid targets. Mirror energy differences (MED) have been determined between the analogue T=2 states and compared with the shell model predictions. MED for this mirror pair, due to their location in the shell, are especially sensitive to excitations out of the f7/2 shell, and present a stringent test of the shell-model prescription.

AB - A sequence of excited states has been established for the first time in the proton-rich nucleus 48Fe (Z=26, N=22). The technique of mirrored (i.e. analogue) one-nucleon knockout reactions was applied, in which the Tz= ±2 mirror pair, 48Fe/48Ti were populated via one-neutron/one-proton knockout from the secondary beams 49Fe/49V, respectively. The analogue properties of the reactions were used to help establish the new level scheme of 48Fe. The inclusive and exclusive cross sections were determined for the populated states. Large differences between the cross sections for the two mirrored reactions were observed and have been interpreted in terms of different degrees of binding of the mirror nuclei and in the context of the recent observations of suppression of spectroscopic strength as a function of nuclear binding, for knockout reactions on light solid targets. Mirror energy differences (MED) have been determined between the analogue T=2 states and compared with the shell model predictions. MED for this mirror pair, due to their location in the shell, are especially sensitive to excitations out of the f7/2 shell, and present a stringent test of the shell-model prescription.

UR - http://www.scopus.com/inward/record.url?scp=85118504032&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2021.136757

DO - 10.1016/j.physletb.2021.136757

M3 - Article

SN - 0370-2693

VL - 823

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 136757

ER -

Spectroscopy of the T = 2 mirror nuclei ⁴⁸Fe/⁴⁸Ti using mirrored knockout reactions

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Spectroscopy of the T = 2 mirror nuclei 48Fe/48Ti using mirrored knockout reactions

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Spectroscopy of the T = 2 mirror nuclei ⁴⁸Fe/⁴⁸Ti using mirrored knockout reactions