Spectroscopic investigation of nuclei for nuclear astrophysics

• Grant number: 14/14432-2
• Support type: Scholarships abroad - Research
• Effective date (Start): December 25, 2014
• Effective date (End): December 24, 2015
• Field of knowledge: Physical Sciences and Mathematics - Physics
• Principal Investigator: Valdir Guimarães
• Grantee: Valdir Guimarães
• Host: Fairouz Hammache
• Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Local de pesquisa : Institut de Physique Nucléaire Orsay (IPN Orsay), France

Abstract

As a proposal for the present research project I intend to develop investigation activities in nuclear spectroscopy with astrophysics interest using nuclear reactions to be measured at the IPN (Institut de Physique Nucléaire) of Orsay, Paris, France. These activities will be performed with the group NESTER (Noyaux Exotiques STructure et Réactions) led by Profa. Fairouz Hammache. This laboratory has a system for radioactive ion beams production called ALTO (Accélérateur linéaire et Orsay Tandem), which is based on a linear electron accelerator of 50 MeV coupled to a system of identification and separation of elements, and a Tandem type particle accelerator of 15 MV associated with a spectrograph of the split-pole type. These activities can be divided as follows. 1) Participating in experiences with the radioactive ion beam production system ALTO. The purpose of this activity would be to obtain information about this system and analyze the feasibility of a future installation of a similar system at the Physics Institute of USP. 2) Nuclear spectroscopy in the investigation of reactions of astrophysical interest. Participate in experiments of interest for nuclear astrophysics using beams of 7Li and protons accelerated by the 15 MV Tandem. The goal of these experiments is to obtain spectroscopic information of the nuclei 21Ne, 26,27Al and 24Mg using the split-pole spectrograph. 3) Data analysis of the 17O(7Li,t)21Ne* reaction. Analyze the data to be obtained for the 17O(7Li,t)21Ne* transfer reaction using the split-pole spectrograph to obtain spectroscopic information on the 21Ne* nucleus and thereby study the 17O(a,n)20Ne and the 17O(a,g)21Ne capture reaction with astrophysics interest .The IPN Orsay is a great laboratory with a long tradition in nuclear physics research. I can contribute to data analysis with my knowledge in DWBA calculations and in return I will have the opportunity to improve my skills related to the modern detection system and experimental apparatus available in this laboratory. Moreover I will have the opportunity to deep my knowledge in issues related to nuclear astrophysics. Thus, I believe that this stage will be beneficial to both research groups, NESTER Orsay and NEAN (Exotic Nuclei and Nuclear Astrophysics) that I'm leading in IFUSP. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GUIMARAES, V.; KOLATA, J. J.; AGUILERA, E. F.; HOWARD, A.; ROBERTS, A.; BECCHETTI, F. D.; TORRES-ISEA, R. O.; RIGGINS, A.; FEBRARRO, M.; SCARDUELLI, V.; DE FARIA, P. N.; MONTEIRO, D. S.; HUIZA, J. F. P.; ARAZI, A.; HINNEFELD, J.; MORO, A. M.; ROSSI, JR., E. S.; MORCELLE, V.; BARIONI, A. Backscattering measurement of He-6 on Bi-209: Critical interaction distance. Physical Review C, v. 93, n. 6 JUN 14 2016. Web of Science Citations: 4.

BALABEKYAN, A. R.; KARAPETYAN, G. S.; DEMEKHINA, N. A.; DRNOYAN, D. R.; ZHEMENIK, V. I.; ADAM, J.; ZAVORKA, L.; SOLNYSHKIN, A. A.; TSOUPKO-SITNIKOV, V. M.; GUIMARAES, V.; DEPPMAN, A. Isomer production in intermediate-energy deuteron-induced reactions on a gold target. Physical Review C, v. 93, n. 5 MAY 18 2016. Web of Science Citations: 1.

DESHMUKH, N. N.; GUIMARAES, V.; CREMA, E.; ABRIOLA, D.; ARAZI, A.; DE BARBARA, E.; CAPURRO, O. A.; CARDONA, M. A.; GALLARDO, J.; HOJMAN, D.; MARTI, G. V.; PACHECO, A. J.; RODRIGUES, D.; YANG, Y. Y.; DESHMUKH, A. N.; MENDES, JR., D. R.; MORCELLE, V.; SCARDUELLI, V.; MONTEIRO, D. S. Elastic and inelastic scattering for the B-11+Ni-58 system: Target and projectile reorientation effects. Physical Review C, v. 92, n. 5 NOV 20 2015. Web of Science Citations: 5.

CHAE, K. Y.; GUIMARES, V. Background considerations for the H-2(Be-7,H-3)(6)Be experimental data II: Three-body continuum. JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v. 67, n. 9, p. 1533-1536, NOV 2015. Web of Science Citations: 0.