Orateur
Description
Coulomb barrier scattering of the proton halo nucleus 17Ne
I. Martel(a), J. Díaz-Ovejas(b), D. Dell’Aquila(c,d),L. Acosta(e), J. L. Aguado(a), G. de Angelis(f), M. J. G. Borge(b), J. A. Briz(b), A. Chbihi(g), G. Colucci(h), C. Díaz-Martín(a), P. Figuera(d), D. Galaviz(i), C. García-Ramos(a), J. A. Gómez-Galán(a), C. A. Gonzales(a), N. Goyal(g), N. Keeley(j), K. W. Kemper(k), T. Kurtukian-Nieto(l), D. J. Malenica(m), M. Mazzocco(n,o), D. Nurkic(p), A. K. Orduz(g), A. Ortiz(g), L. Palada(m), C. Parascandolo(q), A. Di Pietro(d), A. M. Rodriguez(a), K. Rusek(h), F. Salguero(a), A. M. Sánchez-Benítez(r), M. Sánchez-Raya(a), J. Sánchez-Segovia(a), N. Soic(m), F. Soramel(n,o), M. Stanoiu(s), O. Tengblad(b), N. Vukman(m), M. Xarepe(i)
(a) Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain.
(b) Instituto de Estructura de la Materia, CSIC, 28006 Madrid, Spain.
(c) Dipartimento di Chimica e Farmacia, Universitá degli Studi di Sassari, Sassari, Italy .
(d) INFN-Laboratori Nazionali del Sud, 95123 Catania, Italy.
(e) Instituto de Física, UNAM, México.
(f) INFN-National Laboratories of Legnaro, 35020 Legnaro (PD), Italy.
(g) Grand Accélérateur National d’Ions Lourds, BP 55027-14076 Caen, Cedex 05, France.
(h) Heavy Ion Laboratory, University of Warsaw, ul. Pasteura 5a, 02-093 Warsaw, Poland.
(i) LIP, Av. Prof. Gama Pinto 2, PT-1649-003, Lisboa, Portugal.
(j) National Centre for Nuclear Research, ul. Andrzeja Sołtana 7, 05-400 Otwock, Poland.
(k) Department of Physics, The Florida State University, Tallahassee, Florida 32306, USA.
(l) Centre d’Etudes Nucléaires de Bordeaux Gradignan, Gradignan F-33175, France.
(m) Rudjer Boskovic Institute, Bijenicka cesta 54, HR-10000 Zagreb, Croatia.
(n) Dipartimento di Fisica e Astronomia, Universitá di Padova, I-35131 Padova, Italy.
(o) INFN-Sezione di Padova, via F. Marzolo 8, I-35131 Padova, Italy.
(p) Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia.
(q) INFN-Naples, Italy.
(r) Centro de Estudios Avanzados en Física, Matemáticas y Computación, University of Huelva, 21071 Huelva, Spain.
(s) IFIN-HH PO-BOX MG-6, 76900 Bucharest Magurele, Romania.
Abstract
17Ne is a proton drip-line nucleus and a candidate for a Borromean two-proton halo with a 15O core. Elastic scattering and the inclusive 15O production on a 208Pb target were measured for the first time at the SPIRAL1 facility at GANIL [1]. The experiment was carried out using the GLORIA detector array [2], a compact DSSSD array able to provide a continuous angular distribution of relevant reaction channels in the angular range from 20° to 120° Lab. The new data reveal the suppression of the Coulomb rainbow peak in 17Ne scattering, a surprising result since the rainbow peak persists in the scattering of the proton-halo 8B [3]. The angular distribution of the cross-section for inclusive 15O production seems compatible with the inelastic excitation of 17Ne. In this contribution the experimental details will be given, and the results discussed in the framework of the Optical Model and Coupled Channel Calculations [4].
References
[1] I. Martel et al., proposal E788S to the GANIL PAC, 2018.
[2] G. Marquínez-Durán, Nucl. Inst. Meth. A755 (2014) 69.
[3] R. Spartá et al., Physics Letters B 820 (2021) 136477.
[4] J. Díaz-Ovejas et al., Physics Letters B (2023), submitted.
