Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering

J. C. Zamora; C. Sullivan; R. G.T. Zegers; N. Aoi; L. Batail; D. Bazin; M. Carpenter; J. J. Carroll; I. Deloncle; Y. D. Fang; H. Fujita; U. Garg; G. Gey; C. J. Guess; M. N. Harakeh; T. H. Hoang; E. Hudson; N. Ichige; E. Ideguchi; A. Inoue; J. Isaak; C. Iwamoto; C. Kacir; N. Kobayashi; T. Koike; M. Kumar Raju; S. Lipschutz; M. Liu; P. Von Neumann-Cosel; S. Noji; H. J. Ong; S. Péru; J. Pereira; J. Schmitt; A. Tamii; R. Titus; V. Werner; Y. Yamamoto; X. Zhou; S. Zhu

doi:10.1103/PhysRevC.101.064609

Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering

J. C. Zamora, C. Sullivan, R. G.T. Zegers, N. Aoi, L. Batail, D. Bazin, M. Carpenter, J. J. Carroll, I. Deloncle, Y. D. Fang, H. Fujita, U. Garg, G. Gey, C. J. Guess, M. N. Harakeh, T. H. Hoang, E. Hudson, N. Ichige, E. Ideguchi, A. InoueJ. Isaak, C. Iwamoto, C. Kacir, N. Kobayashi, T. Koike, M. Kumar Raju, S. Lipschutz, M. Liu, P. Von Neumann-Cosel, S. Noji, H. J. Ong, S. Péru, J. Pereira, J. Schmitt, A. Tamii, R. Titus, V. Werner, Y. Yamamoto, X. Zhou, S. Zhu

IEHE - Division of Research in Higher Education

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Abstract

Inelastic Li6 scattering at 100 MeV/u on C12 and Nb93 has been measured with the high-resolution magnetic spectrometer Grand Raiden. The magnetic-rigidity settings of the spectrometer covered excitation energies from 10 to 40 MeV and scattering angles in the range 0°<θlab.<2°. The isoscalar giant monopole resonance was selectively excited in the present data. Measurements free of instrumental background and the very favorable resonance-to-continuum ratio of Li6 scattering allowed for precise determination of the E0 strengths in C12 and Nb93. It was found that the monopole strength in C12 exhausts 52±3(stat.)±8(sys.)% of the energy-weighted sum rule (EWSR), which is considerably higher than results from previous α-scattering experiments. The monopole strength in Nb93 exhausts 92±4(stat.)±10(sys.)% of the EWSR, and it is consistent with measurements of nuclei with mass number of A≈90. Such comparison indicates that the isoscalar giant monopole resonance distributions in these nuclei are very similar, and no influence due to nuclear structure was observed.

Original language	English
Article number	064610
Journal	Physical Review C
Volume	101
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.101.064609
Publication status	Published - 2020 Jun

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Zamora, J. C., Sullivan, C., Zegers, R. G. T., Aoi, N., Batail, L., Bazin, D., Carpenter, M., Carroll, J. J., Deloncle, I., Fang, Y. D., Fujita, H., Garg, U., Gey, G., Guess, C. J., Harakeh, M. N., Hoang, T. H., Hudson, E., Ichige, N., Ideguchi, E., ... Zhu, S. (2020). Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering. Physical Review C, 101(6), Article 064610. https://doi.org/10.1103/PhysRevC.101.064609

@article{bd337a1a91614a51a41edaac48de3809,

title = "Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering",

abstract = "Inelastic Li6 scattering at 100 MeV/u on C12 and Nb93 has been measured with the high-resolution magnetic spectrometer Grand Raiden. The magnetic-rigidity settings of the spectrometer covered excitation energies from 10 to 40 MeV and scattering angles in the range 0°<θlab.<2°. The isoscalar giant monopole resonance was selectively excited in the present data. Measurements free of instrumental background and the very favorable resonance-to-continuum ratio of Li6 scattering allowed for precise determination of the E0 strengths in C12 and Nb93. It was found that the monopole strength in C12 exhausts 52±3(stat.)±8(sys.)% of the energy-weighted sum rule (EWSR), which is considerably higher than results from previous α-scattering experiments. The monopole strength in Nb93 exhausts 92±4(stat.)±10(sys.)% of the EWSR, and it is consistent with measurements of nuclei with mass number of A≈90. Such comparison indicates that the isoscalar giant monopole resonance distributions in these nuclei are very similar, and no influence due to nuclear structure was observed.",

author = "Zamora, {J. C.} and C. Sullivan and Zegers, {R. G.T.} and N. Aoi and L. Batail and D. Bazin and M. Carpenter and Carroll, {J. J.} and I. Deloncle and Fang, {Y. D.} and H. Fujita and U. Garg and G. Gey and Guess, {C. J.} and Harakeh, {M. N.} and Hoang, {T. H.} and E. Hudson and N. Ichige and E. Ideguchi and A. Inoue and J. Isaak and C. Iwamoto and C. Kacir and N. Kobayashi and T. Koike and {Kumar Raju}, M. and S. Lipschutz and M. Liu and {Von Neumann-Cosel}, P. and S. Noji and Ong, {H. J.} and S. P{\'e}ru and J. Pereira and J. Schmitt and A. Tamii and R. Titus and V. Werner and Y. Yamamoto and X. Zhou and S. Zhu",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society. ",

year = "2020",

month = jun,

doi = "10.1103/PhysRevC.101.064609",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

Zamora, JC, Sullivan, C, Zegers, RGT, Aoi, N, Batail, L, Bazin, D, Carpenter, M, Carroll, JJ, Deloncle, I, Fang, YD, Fujita, H, Garg, U, Gey, G, Guess, CJ, Harakeh, MN, Hoang, TH, Hudson, E, Ichige, N, Ideguchi, E, Inoue, A, Isaak, J, Iwamoto, C, Kacir, C, Kobayashi, N, Koike, T, Kumar Raju, M, Lipschutz, S, Liu, M, Von Neumann-Cosel, P, Noji, S, Ong, HJ, Péru, S, Pereira, J, Schmitt, J, Tamii, A, Titus, R, Werner, V, Yamamoto, Y, Zhou, X & Zhu, S 2020, 'Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering', Physical Review C, vol. 101, no. 6, 064610. https://doi.org/10.1103/PhysRevC.101.064609

TY - JOUR

T1 - Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering

AU - Zamora, J. C.

AU - Sullivan, C.

AU - Zegers, R. G.T.

AU - Aoi, N.

AU - Batail, L.

AU - Bazin, D.

AU - Carpenter, M.

AU - Carroll, J. J.

AU - Deloncle, I.

AU - Fang, Y. D.

AU - Fujita, H.

AU - Garg, U.

AU - Gey, G.

AU - Guess, C. J.

AU - Harakeh, M. N.

AU - Hoang, T. H.

AU - Hudson, E.

AU - Ichige, N.

AU - Ideguchi, E.

AU - Inoue, A.

AU - Isaak, J.

AU - Iwamoto, C.

AU - Kacir, C.

AU - Kobayashi, N.

AU - Koike, T.

AU - Kumar Raju, M.

AU - Lipschutz, S.

AU - Liu, M.

AU - Von Neumann-Cosel, P.

AU - Noji, S.

AU - Ong, H. J.

AU - Péru, S.

AU - Pereira, J.

AU - Schmitt, J.

AU - Tamii, A.

AU - Titus, R.

AU - Werner, V.

AU - Yamamoto, Y.

AU - Zhou, X.

AU - Zhu, S.

PY - 2020/6

Y1 - 2020/6

N2 - Inelastic Li6 scattering at 100 MeV/u on C12 and Nb93 has been measured with the high-resolution magnetic spectrometer Grand Raiden. The magnetic-rigidity settings of the spectrometer covered excitation energies from 10 to 40 MeV and scattering angles in the range 0°<θlab.<2°. The isoscalar giant monopole resonance was selectively excited in the present data. Measurements free of instrumental background and the very favorable resonance-to-continuum ratio of Li6 scattering allowed for precise determination of the E0 strengths in C12 and Nb93. It was found that the monopole strength in C12 exhausts 52±3(stat.)±8(sys.)% of the energy-weighted sum rule (EWSR), which is considerably higher than results from previous α-scattering experiments. The monopole strength in Nb93 exhausts 92±4(stat.)±10(sys.)% of the EWSR, and it is consistent with measurements of nuclei with mass number of A≈90. Such comparison indicates that the isoscalar giant monopole resonance distributions in these nuclei are very similar, and no influence due to nuclear structure was observed.

AB - Inelastic Li6 scattering at 100 MeV/u on C12 and Nb93 has been measured with the high-resolution magnetic spectrometer Grand Raiden. The magnetic-rigidity settings of the spectrometer covered excitation energies from 10 to 40 MeV and scattering angles in the range 0°<θlab.<2°. The isoscalar giant monopole resonance was selectively excited in the present data. Measurements free of instrumental background and the very favorable resonance-to-continuum ratio of Li6 scattering allowed for precise determination of the E0 strengths in C12 and Nb93. It was found that the monopole strength in C12 exhausts 52±3(stat.)±8(sys.)% of the energy-weighted sum rule (EWSR), which is considerably higher than results from previous α-scattering experiments. The monopole strength in Nb93 exhausts 92±4(stat.)±10(sys.)% of the EWSR, and it is consistent with measurements of nuclei with mass number of A≈90. Such comparison indicates that the isoscalar giant monopole resonance distributions in these nuclei are very similar, and no influence due to nuclear structure was observed.

UR - http://www.scopus.com/inward/record.url?scp=85087728740&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85087728740&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.101.064609

DO - 10.1103/PhysRevC.101.064609

M3 - Article

AN - SCOPUS:85087728740

SN - 2469-9985

VL - 101

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064610

ER -

Reexamination of isoscalar giant resonances in C 12 and Nb 93 through Li 6 scattering

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