Physics Letters B (Aug 2023)
Suppression of Coulomb-nuclear interference in the near-barrier elastic scattering of 17Ne from 208Pb
- J.D. Ovejas,
- I. Martel,
- D. Dell'Aquila,
- L. Acosta,
- J.L. Aguado,
- G. de Angelis,
- M.J.G. Borge,
- J.A. Briz,
- A. Chbihi,
- G. Colucci,
- C. Díaz-Martín,
- P. Figuera,
- D. Galaviz,
- C. García-Ramos,
- J.A. Gómez-Galán,
- C.A. Gonzales,
- N. Goyal,
- N. Keeley,
- K.W. Kemper,
- T. Kurtukian Nieto,
- D.J. Malenica,
- M. Mazzocco,
- D. Nurkić,
- A.K. Orduz,
- A. Ortiz,
- L. Palada,
- C. Parascandolo,
- A. Di Pietro,
- A.M. Rodriguez,
- K. Rusek,
- F. Salguero,
- A.M. Sánchez-Benítez,
- M. Sánchez-Raya,
- J. Sánchez-Segovia,
- N. Soić,
- F. Soramel,
- M. Stanoiu,
- O. Tengblad,
- N. Vukman,
- M. Xarepe
Affiliations
- J.D. Ovejas
- Instituto de Estructura de la Materia, CSIC, 28006 Madrid, Spain
- I. Martel
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain; Corresponding author.
- D. Dell'Aquila
- Dipartimento di Fisica Ettore Pancini, University of Naples Federico II, Naples, Italy; INFN-Naples, Italy
- L. Acosta
- Instituto de Física, UNAM, Mexico
- J.L. Aguado
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- G. de Angelis
- INFN-National Laboratories of Legnaro, 35020 Legnaro (PD), Italy
- M.J.G. Borge
- Instituto de Estructura de la Materia, CSIC, 28006 Madrid, Spain
- J.A. Briz
- Instituto de Estructura de la Materia, CSIC, 28006 Madrid, Spain
- A. Chbihi
- Grand Accélérateur National d'Ions Lourds, BP 55027 - 14076 Caen, Cedex 05, France
- G. Colucci
- Heavy Ion Laboratory, University of Warsaw, ul. Pasteura 5a, 02-093 Warsaw, Poland
- C. Díaz-Martín
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- P. Figuera
- INFN-Laboratori Nazionali del Sud, 95123 Catania, Italy
- D. Galaviz
- LIP, Lisboa, Portugal
- C. García-Ramos
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- J.A. Gómez-Galán
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- C.A. Gonzales
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- N. Goyal
- Grand Accélérateur National d'Ions Lourds, BP 55027 - 14076 Caen, Cedex 05, France
- N. Keeley
- National Centre for Nuclear Research, ul. Andrzeja Sołtana 7, 05-400 Otwock, Poland
- K.W. Kemper
- Department of Physics, The Florida State University, Tallahassee, FL 32306, USA
- T. Kurtukian Nieto
- Centre d'Etudes Nucléaires de Bordeaux Gradignan, Chemin du Solarium, Gradignan F-33175, France
- D.J. Malenica
- Rudjer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
- M. Mazzocco
- Dipartimento di Fisica e Astronomia, Università di Padova, via F. Marzolo 8, I-35131 Padova, Italy; INFN-Sezione di Padova, via F. Marzolo 8, I-35131 Padova, Italy
- D. Nurkić
- Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
- A.K. Orduz
- Grand Accélérateur National d'Ions Lourds, BP 55027 - 14076 Caen, Cedex 05, France
- A. Ortiz
- Grand Accélérateur National d'Ions Lourds, BP 55027 - 14076 Caen, Cedex 05, France
- L. Palada
- Rudjer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
- C. Parascandolo
- INFN-Naples, Italy
- A. Di Pietro
- INFN-Laboratori Nazionali del Sud, 95123 Catania, Italy
- A.M. Rodriguez
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- K. Rusek
- Heavy Ion Laboratory, University of Warsaw, ul. Pasteura 5a, 02-093 Warsaw, Poland
- F. Salguero
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- A.M. Sánchez-Benítez
- Centro de Estudios Avanzados en Física, Matemáticas y Computación, University of Huelva, 21071 Huelva, Spain
- M. Sánchez-Raya
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- J. Sánchez-Segovia
- Science and Technology Research Centre, University of Huelva, 21071 Huelva, Spain
- N. Soić
- Rudjer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
- F. Soramel
- Dipartimento di Fisica e Astronomia, Università di Padova, via F. Marzolo 8, I-35131 Padova, Italy; INFN-Sezione di Padova, via F. Marzolo 8, I-35131 Padova, Italy
- M. Stanoiu
- IFIN-HH PO-BOX MG-6, 76900 Bucharest Magurele, Romania
- O. Tengblad
- Instituto de Estructura de la Materia, CSIC, 28006 Madrid, Spain
- N. Vukman
- Rudjer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
- M. Xarepe
- LIP, Lisboa, Portugal
- Journal volume & issue
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Vol. 843
p. 138007
Abstract
The proton drip-line nucleus 17Ne is considered a good candidate for a Borromean two-proton halo with a 15O + p + p structure. Angular distributions of the elastic scattering and inclusive 15O production for a 136 MeV 17Ne beam incident on a 208Pb target were measured for the first time at the SPIRAL1 facility, GANIL. Use of the GLORIA detector array allowed high-resolution data over a wide angular range from 20∘ up to 95∘ in the laboratory frame to be obtained. The elastic scattering angular distribution shows similarities with those for both 6He and 20Ne at equivalent collision energies with respect to the corresponding Coulomb barriers, exhibiting the suppression of the Coulomb rainbow peak characteristic of strong coupling. Optical model and coupled channel fits suggest that this is due to a combination of coupling to low-lying quadrupole resonances and Coulomb dipole coupling to the low-lying continuum, although their relative importance depends on the relevant B(E2) values which remain to be firmly determined.
