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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
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Zamora, J. C. [1] ; Sullivan, C. [2, 3, 4] ; Zegers, R. G. T. [2, 3, 4] ; Aoi, N. [5] ; Batail, L. [6] ; Bazin, D. [2, 3] ; Carpenter, M. [7] ; Carroll, J. J. [8] ; Deloncle, I. [6, 9] ; Fang, Y. D. [5] ; Fujita, H. [5] ; Garg, U. [10] ; Gey, G. [5] ; Guess, C. J. [11, 12] ; Harakeh, M. N. [5, 13] ; Hoang, T. H. [5] ; Hudson, E. [11] ; Ichige, N. [14] ; Ideguchi, E. [5] ; Inoue, A. [5] ; Isaak, J. [15, 5] ; Iwamoto, C. [16] ; Kacir, C. [11] ; Kobayashi, N. [5] ; Koike, T. [14] ; Raju, M. Kumar [5] ; Lipschutz, S. [2, 3, 4] ; Liu, M. [17] ; Von Neumann-Cosel, P. [15] ; Noji, S. [3, 4] ; Ong, H. J. [17, 5] ; Peru, S. [6] ; Pereira, J. [3, 4] ; Schmitt, J. [2, 3, 4] ; Tamii, A. [5] ; Titus, R. [2, 3, 4] ; Werner, V. [15] ; Yamamoto, Y. [5] ; Zhou, X. [17] ; Zhu, S. [7]
Número total de Autores: 40
Afiliação do(s) autor(es):
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[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil
[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 - USA
[3] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 - USA
[4] Michigan State Univ, Joint Inst Nucl Astrophys CEE, E Lansing, MI 48824 - USA
[5] Osaka Univ, Res Ctr Nucl Phys RCNP, Ibaraki, Osaka 5670047 - Japan
[6] CEA, DAM, DIF, F-91297 Arpajon - France
[7] Argonne Natl Lab, Argonne, IL 60439 - USA
[8] Army Res Lab, CCDC, 2800 Powder Mill Rd, Adelphi, MD 20783 - USA
[9] Univ Paris Saclay, CNRS, IJCLab, F-91405 Orsay - France
[10] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 - USA
[11] Swarthmore Coll, Dept Phys & Astron, Swarthmore, PA 19081 - USA
[12] Rowan Univ, Dept Phys & Astron, Glassboro, NJ 08028 - USA
[13] Univ Groningen, KVI CART, NL-9747 AA Groningen - Netherlands
[14] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578 - Japan
[15] Tech Univ Darmstadt, Inst Nucl Phys, D-64289 Darmstadt - Germany
[16] Univ Tokyo, Ctr Nucl Study, RIKEN Campus, 2-1 Hirosawa, Wako, Saitama 3510198 - Japan
[17] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000 - Peoples R China
Número total de Afiliações: 17
Tipo de documento: Artigo Científico
Fonte: Physical Review C; v. 101, n. 6 JUN 11 2020.
Citações Web of Science: 0
Resumo

Inelastic Li-6 scattering at 100 MeV/u on C-12 and Nb-93 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 degrees < theta(lab). < 2 degrees. 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 Li-6 scattering allowed for precise determination of the E0 strengths in C-12 and Nb-93. It was found that the monopole strength in C-12 exhausts 52 +/- 3(()(stat)(.)) +/- 8((sys.))% of the energy-weighted sum rule (EWSR), which is considerably higher than results from previous alpha-scattering experiments. The monopole strength in Nb-93 exhausts 92 +/- 4(()(stat)(.)) +/- 10((sys.))% of the EWSR, and it is consistent with measurements of nuclei with mass number of A approximate to 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. (AU)

Processo FAPESP: 18/04965-4 - Estudo da estrutura e reações nucleares induzidas por feixes radioativos usando alvo ativo
Beneficiário:Juan Carlos Zamora Cardona
Linha de fomento: Bolsas no Brasil - Pós-Doutorado