Quenching of Single-Particle Strength in A=15 Nuclei

B. P. Kay; T. L. Tang; I. A. Tolstukhin; G. B. Roderick; A. J. Mitchell; Y. Ayyad; S. A. Bennett; J. Chen; K. A. Chipps; H. L. Crawford; S. J. Freeman; K. Garrett; M. D. Gott; M. R. Hall; C. R. Hoffman; H. Jayatissa; A. O. Macchiavelli; P. T. Macgregor; D. K. Sharp; G. L. Wilson

doi:10.1103/PhysRevLett.129.152501

Quenching of Single-Particle Strength in A=15 Nuclei

B. P. Kay, T. L. Tang, I. A. Tolstukhin, G. B. Roderick, A. J. Mitchell, Y. Ayyad, S. A. Bennett, J. Chen, K. A. Chipps, H. L. Crawford, S. J. Freeman, K. Garrett, M. D. Gott, M. R. Hall, C. R. Hoffman, H. Jayatissa, A. O. Macchiavelli, P. T. Macgregor, D. K. Sharp, G. L. Wilson

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Abstract

Absolute cross sections for the addition of s- and d-wave neutrons to C14 and N14 have been determined simultaneously via the (d,p) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, ΔS, is around -20 MeV for the C14+n system and +8 MeV for N14+n. The population of the 1s1/2 and 0d5/2 orbitals for both systems is reduced by a factor of approximately 0.5 compared with the independent single-particle model, or about 0.6 when compared with the shell model. This finding strongly contrasts with results deduced from intermediate-energy knockout reactions between similar nuclei on targets of Be9 and C12. The simultaneous technique used removes many systematic uncertainties.

Original language	English
Article number	152501
Journal	Physical Review Letters
Volume	129
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.129.152501
Publication status	Published - 7 Oct 2022

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Kay, B. P., Tang, T. L., Tolstukhin, I. A., Roderick, G. B., Mitchell, A. J., Ayyad, Y., Bennett, S. A., Chen, J., Chipps, K. A., Crawford, H. L., Freeman, S. J., Garrett, K., Gott, M. D., Hall, M. R., Hoffman, C. R., Jayatissa, H., Macchiavelli, A. O., Macgregor, P. T., Sharp, D. K., & Wilson, G. L. (2022). Quenching of Single-Particle Strength in A=15 Nuclei. Physical Review Letters, 129(15), Article 152501. https://doi.org/10.1103/PhysRevLett.129.152501

@article{b31a628f78f44e81add9338d36c82f36,

title = "Quenching of Single-Particle Strength in A=15 Nuclei",

abstract = "Absolute cross sections for the addition of s- and d-wave neutrons to C14 and N14 have been determined simultaneously via the (d,p) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, ΔS, is around -20 MeV for the C14+n system and +8 MeV for N14+n. The population of the 1s1/2 and 0d5/2 orbitals for both systems is reduced by a factor of approximately 0.5 compared with the independent single-particle model, or about 0.6 when compared with the shell model. This finding strongly contrasts with results deduced from intermediate-energy knockout reactions between similar nuclei on targets of Be9 and C12. The simultaneous technique used removes many systematic uncertainties.",

author = "Kay, {B. P.} and Tang, {T. L.} and Tolstukhin, {I. A.} and Roderick, {G. B.} and Mitchell, {A. J.} and Y. Ayyad and Bennett, {S. A.} and J. Chen and Chipps, {K. A.} and Crawford, {H. L.} and Freeman, {S. J.} and K. Garrett and Gott, {M. D.} and Hall, {M. R.} and Hoffman, {C. R.} and H. Jayatissa and Macchiavelli, {A. O.} and Macgregor, {P. T.} and Sharp, {D. K.} and Wilson, {G. L.}",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society. ",

year = "2022",

month = oct,

day = "7",

doi = "10.1103/PhysRevLett.129.152501",

language = "English",

volume = "129",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

Kay, BP, Tang, TL, Tolstukhin, IA, Roderick, GB, Mitchell, AJ, Ayyad, Y, Bennett, SA, Chen, J, Chipps, KA, Crawford, HL, Freeman, SJ, Garrett, K, Gott, MD, Hall, MR, Hoffman, CR, Jayatissa, H, Macchiavelli, AO, Macgregor, PT, Sharp, DK & Wilson, GL 2022, 'Quenching of Single-Particle Strength in A=15 Nuclei', Physical Review Letters, vol. 129, no. 15, 152501. https://doi.org/10.1103/PhysRevLett.129.152501

TY - JOUR

T1 - Quenching of Single-Particle Strength in A=15 Nuclei

AU - Kay, B. P.

AU - Tang, T. L.

AU - Tolstukhin, I. A.

AU - Roderick, G. B.

AU - Mitchell, A. J.

AU - Ayyad, Y.

AU - Bennett, S. A.

AU - Chen, J.

AU - Chipps, K. A.

AU - Crawford, H. L.

AU - Freeman, S. J.

AU - Garrett, K.

AU - Gott, M. D.

AU - Hall, M. R.

AU - Hoffman, C. R.

AU - Jayatissa, H.

AU - Macchiavelli, A. O.

AU - Macgregor, P. T.

AU - Sharp, D. K.

AU - Wilson, G. L.

PY - 2022/10/7

Y1 - 2022/10/7

N2 - Absolute cross sections for the addition of s- and d-wave neutrons to C14 and N14 have been determined simultaneously via the (d,p) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, ΔS, is around -20 MeV for the C14+n system and +8 MeV for N14+n. The population of the 1s1/2 and 0d5/2 orbitals for both systems is reduced by a factor of approximately 0.5 compared with the independent single-particle model, or about 0.6 when compared with the shell model. This finding strongly contrasts with results deduced from intermediate-energy knockout reactions between similar nuclei on targets of Be9 and C12. The simultaneous technique used removes many systematic uncertainties.

AB - Absolute cross sections for the addition of s- and d-wave neutrons to C14 and N14 have been determined simultaneously via the (d,p) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, ΔS, is around -20 MeV for the C14+n system and +8 MeV for N14+n. The population of the 1s1/2 and 0d5/2 orbitals for both systems is reduced by a factor of approximately 0.5 compared with the independent single-particle model, or about 0.6 when compared with the shell model. This finding strongly contrasts with results deduced from intermediate-energy knockout reactions between similar nuclei on targets of Be9 and C12. The simultaneous technique used removes many systematic uncertainties.

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U2 - 10.1103/PhysRevLett.129.152501

DO - 10.1103/PhysRevLett.129.152501

M3 - Article

SN - 0031-9007

VL - 129

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 152501

ER -

Quenching of Single-Particle Strength in A=15 Nuclei

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