Spectroscopy of high lying resonances in 9Be produced with radioactive 8Li beams

A. Lépine-Szily; E. Leistenschneider; D. R. Mendes; P. Descouvemont; R. Lichtenthäler; V. Guimarães; P. N. de Faria; A. Barioni; K. C. C. Pires; V. Morcelle; R. Pampa Condori; M. C. Moraes; V. Scarduelli; E. Rossi; V. A. Zagatto; H. Santos; V. A. P. Aguiar; T. Britos; M. Assunção; J. C. Zamora; J. Duarte; J. M. B. Shorto

doi:10.1051/epjconf/20136900006

All issues

Volume 69 (2014)

EPJ Web of Conferences, 69 (2014) 00006

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 69, 2014 CNR*13 - Fourth International Workshop on Compound Nuclear Reactions and Related Topics


Article Number		00006
Number of page(s)		7
DOI		https://doi.org/10.1051/epjconf/20136900006
Published online		01 April 2014

EPJ Web of Conferences 69, 00006 (2014)
https://doi.org/10.1051/epjconf/20136900006

Spectroscopy of high lying resonances in ⁹Be produced with radioactive ⁸Li beams

A. Lépine-Szily¹^a, E. Leistenschneider¹, D. R. Mendes Jr², P. Descouvemont³, R. Lichtenthäler¹, V. Guimarães¹, P. N. de Faria², A. Barioni⁴, K. C. C. Pires⁵, V. Morcelle⁶, R. Pampa Condori¹, M. C. Moraes⁷, V. Scarduelli¹, E. Rossi¹, V. A. Zagatto¹, H. Santos², V. A. P. Aguiar¹, T. Britos⁸, M. Assunção⁸, J. C. Zamora⁹, J. Duarte¹ and J. M. B. Shorto¹⁰

¹ Instituto de Física da Universidade de São Paulo, Caixa Postal 66318, 05315-970, São Paulo, SP, Brazil
² Instituto de Física - Universidade Federal Fluminense, Niterói,R.J., 24210-340, Brazil
³ Physique Nucléaire Théorique et Physique Mathématique, C.P. 229, Université Libre de Bruxelles (ULB), B 1050 Brussels, Belgium
⁴ Universidade Federal da Bahia, Salvador, Brazil
⁵ Universidade Tecnológica Federal do Paraná, Cornélio Procópio, Brazil
⁶ Universidade Federal de Itajubá, Campus de Itabira, MG., Brazil
⁷ Centro Brasileiro de Pesquisas Fisicas, CBPF, Rio de Janeiro, RJ, Brazil
⁸ Universidade Federal de São Paulo, Campus Diadema, SP, Brazil
⁹ Technische Universität Darmstadt, Germany
¹⁰ Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN), Comissão Nacional de Energia Nuclear, São Paulo, Brazil

^a e-mail: alinka@if.usp.br

Published online: 1 April 2014

Abstract

We present the results of the ⁸Li(p,α)⁵He and ⁸Li(p,p)⁸Li reactions measured at the RIBRAS (Radioactive Ion Beams in Brazil) system. The experiment was realized in inverse kinematics using a thick [CH₂]_n polyethylene target and an incident ⁸Li beam, produced by RIBRAS. Using the thick target method, the complete excitation function could be measured between E_cm = 0.2 − 2.1 MeV, which includes the Gamow peak energy region. The excitation function of the ⁸Li(p,α)⁵He reaction, populating resonances between 16.888 and 19.0 MeV in ⁹Be, was obtained[1] and the resonances were fitted using R-matrix calculations. This study shed light on spins, parities, partial widths and isospin values of high lying resonances in ⁹Be. The measurement of the resonant elastic scattering ⁸Li(p,p)⁸Li populating resonances in the same energy region can constrain the resonance parameters. Preliminary results of the elastic scattering are also presented.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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