Spallation reactions induced by 4.4 GeV deuterons on lead isotopes

Autor(es):Mostrar menos -

Balabekyan, A. R. ^[1] ; Karapetyan, G. S. ^[2] ; Demekhina, N. A. ^[3] ; Gaginyan, V, S. ; Drnoyan, R. ^[4] ; Zhemenik, I, V. ; Adam, J. ^[5] ; Zavorka, L. ^[5] ; Solnyshkin, A. A. ^[5] ; Tsoupko-Sitnikov, V. M. ^[5] ; Khushvaktov, J. ^[5] ; Pronskikh, V ^{[6, 5]} ; Zhamkochyan, V. M. ^[7] ; Guimaraes, V ^[8] ; Deppman, A. ^[8]

Afiliação do(s) autor(es)

^[1] Yerevan State Univ, A Manoogian 1, 025, Yerevan 1 - Armenia

^[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210580 Santo Andre, SP - Brazil

^[3] Yerevan Phys Inst, Alikhanyan Bros 2, Yerevan 0036 - Armenia

^[4] Joint Inst Nucl Res, LNP, Joliot Curie 6, Moscow 141980 - Russia

^[5] Zhemenik, V., I, Joint Inst Nucl Res, LNP, Joliot Curie 6, Moscow 141980 - Russia

^[6] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 - USA

^[7] Gaginyan, S., V, Yerevan State Univ, A Manoogian 1, 025, Yerevan 1 - Armenia

^[8] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS; v. 46, n. 9 SEP 2019.
• Citações Web of Science: 0

Resumo

Independent and cumulative production cross sections for radioactive nuclear fragments from the deuteron-irradiation of isotopically enriched lead (Pb-204, (206)pb, Pb-207, and Pb-208) targets were obtained for the first time. The experiment has been performed with a 4.4 GeV deuteron beam from the Nuclotron of the Laboratory of High Energy Physics (LHE), Joint Institute for Nuclear Research (JINR) at Dubna. The production cross sections of target fragments were determined by off-line 7-ray spectroscopy. Charge dispersion and massyield distributions were deduced from these data. The results are discussed in terms of the relative importance of different reaction mechanisms (evaporation-spallation, fission and multifragmentation). Comparison of our results with the data from the reaction induced by protons of about the same kinetic energy per nucleon, has been performed. The coexistence of the different decay modes in the formation of the reaction residues, such as spallation, fission and multifragmentation is suggested. (AU)

• Processo FAPESP: 18/19943-6 - Reações Nucleares, Informação e o Método da Atividade Induzida
• Beneficiário: Gayane Karapetyan
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/02863-4 - Investigação de núcleos exóticos e astrofísica nuclear através de reações diretas e de espalhamento
• Beneficiário: Valdir Guimarães
• Modalidade de apoio: Auxílio à Pesquisa - Regular