Physics Letters B (Apr 2018)
Neutron-rich nuclei produced at zero degrees in damped collisions induced by a beam of 18O on a 238U target
- I. Stefan,
- B. Fornal,
- S. Leoni,
- F. Azaiez,
- C. Portail,
- J.C. Thomas,
- A.V. Karpov,
- D. Ackermann,
- P. Bednarczyk,
- Y. Blumenfeld,
- S. Calinescu,
- A. Chbihi,
- M. Ciemala,
- N. Cieplicka-Oryńczak,
- F.C.L. Crespi,
- S. Franchoo,
- F. Hammache,
- Ł.W. Iskra,
- B. Jacquot,
- R.V.F. Janssens,
- O. Kamalou,
- T. Lauritsen,
- M. Lewitowicz,
- L. Olivier,
- S.M. Lukyanov,
- M. Maccormick,
- A. Maj,
- P. Marini,
- I. Matea,
- M.A. Naumenko,
- F. de Oliveira Santos,
- C. Petrone,
- Yu.E. Penionzhkevich,
- F. Rotaru,
- H. Savajols,
- O. Sorlin,
- M. Stanoiu,
- B. Szpak,
- O.B. Tarasov,
- D. Verney
Affiliations
- I. Stefan
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France; Corresponding author.
- B. Fornal
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
- S. Leoni
- Dipartimento di Fisica, Università degli Studi di Milano, I-20133 Milano, Italy; INFN sezione di Milano via Celoria 16, 20133, Milano, Italy
- F. Azaiez
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- C. Portail
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- J.C. Thomas
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- A.V. Karpov
- Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Russia
- D. Ackermann
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- P. Bednarczyk
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
- Y. Blumenfeld
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- S. Calinescu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, 077125 Bucharest-Magurele, Romania
- A. Chbihi
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- M. Ciemala
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
- N. Cieplicka-Oryńczak
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland; INFN sezione di Milano via Celoria 16, 20133, Milano, Italy
- F.C.L. Crespi
- Dipartimento di Fisica, Università degli Studi di Milano, I-20133 Milano, Italy; INFN sezione di Milano via Celoria 16, 20133, Milano, Italy
- S. Franchoo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- F. Hammache
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- Ł.W. Iskra
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
- B. Jacquot
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- R.V.F. Janssens
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- O. Kamalou
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- T. Lauritsen
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- M. Lewitowicz
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- L. Olivier
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- S.M. Lukyanov
- Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Russia
- M. Maccormick
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- A. Maj
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
- P. Marini
- CENBG, CNRS/IN2P3-Université de Bordeaux, 19 Chemin du Solarium, 33175 Gradignan, France
- I. Matea
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- M.A. Naumenko
- Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Russia
- F. de Oliveira Santos
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- C. Petrone
- Horia Hulubei National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, 077125 Bucharest-Magurele, Romania
- Yu.E. Penionzhkevich
- Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Russia; National Research Nuclear University MEPhI, Moscow, Russia
- F. Rotaru
- Horia Hulubei National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, 077125 Bucharest-Magurele, Romania
- H. Savajols
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- O. Sorlin
- GANIL, CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
- M. Stanoiu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, 077125 Bucharest-Magurele, Romania
- B. Szpak
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
- O.B. Tarasov
- Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Russia; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- D. Verney
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
- Journal volume & issue
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Vol. 779
pp. 456 – 459
Abstract
Cross sections and corresponding momentum distributions have been measured for the first time at zero degrees for the exotic nuclei obtained from a beam of 18O at 8.5 MeV/A impinging on a 1 mg/cm2 238U target. Sizable cross sections were found for the production of exotic species arising from the neutron transfer and proton removal from the projectile. Comparisons of experimental results with calculations based on deep-inelastic reaction models, taking into account the particle evaporation process, indicate that zero degree is a scattering angle at which the differential reaction cross section for production of exotic nuclei is at its maximum. This result is important in view of the new generation of zero degrees spectrometers under construction, such as the S3 separator at GANIL, for example. Keywords: Nuclear reactions, Deep-inelastic collisions, Exotic nuclei
