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3 results on '"Fairouz Hammache"'

1. Study of the neutron induced reaction 17O(n,α)14C at astrophysical energies via the Trojan Horse Method

Author

G. Manicò, G. D’Agata, G. L. Guardo, N. de Séréville, C. Spitaleri, S. Romano, D. Lattuada, M. Lattuada, A. A. Oliva, Fairouz Hammache, Roberta Spartà, M. La Commara, M. L. Sergi, A. Tumino, Maria Letizia Pumo, S. Palmerini, M. Mazzocco, G. G. Rapisarda, I. Indelicato, S. Cherubini, S. Messina, S. Hayakawa, M. La Cognata, M. Gulino, P. Figuera, A. Cvetinović, Neven Soić, A. Di Pietro, R. G. Pizzone, L. Lamia, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Range (particle radiation), 010308 nuclear & particles physics, Abundance (chemistry), QC1-999, Trojan horse, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Iron peak, 01 natural sciences, 7. Clean energy, Nuclear physics, Stars, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron, Center of mass, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010306 general physics
Abstract

Neutron induced reactions are fundamental for the nucleosynthesis of elements in the universe. Indeed, to correctly study the reactions involved in the well-known s-process in stars, which produce about half of the elements beyond the iron peak, it is mandatory to know the neutron abundance available in those stars. The 17O(n, a)14C reaction is one of the so-called “neutron poisons” for the pro- cess and it could play an important role in the balance of the neutron abundance. The reaction is therefore investigated in the energy range of astrophysical inter- est between 0 and 350 keV in the center of mass by applying the Trojan Horse Method to the three body reaction 2H(17O, a14C)H.

Published
2020
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2. Fusion cross section measurements of astrophysical interest for light heavy ions systems within the STELLA project

Author

Anne Meyer, F. Haas, Philip Adsley, L. Morris, Matthias Rudiger, D. G. Jenkins, Serge Della Negra, G. Fruet, S. Courtin, C. Beck, D. Montanari, P. H. Regan, C. Stodel, Nicolas de Séréville, Fairouz Hammache, M. Heine, Oliver S. Kirsebom, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), E.C. Simpson, C. Simenel, K.J. Cook and I.P. Carter, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Silicon, QC1-999, Ultra-high vacuum, Aucun, Stella (software), chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 030204 cardiovascular system & hematology, Scintillator, 01 natural sciences, 7. Clean energy, Coincidence, Ion, Nuclear physics, 03 medical and health sciences, Cross section (physics), 0302 clinical medicine, chemistry, 0103 physical sciences, Nuclear fusion, Atomic physics, 010306 general physics
Abstract

International audience; This contribution is focused on the STELLA project (STELlar LAboratory), which aims at the measurement of fusion cross sections between light heavy ions like 12C+12C, 12C+16O or 16O+16O at deep subbarrier energies. The gamma-particle coincidence technique is used in order to reduce background contributions that become dominant for measurements in the nanobarn regime.The experimental setup composed of an ultra high vacuum reaction chamber, a set of 3 silicon strip detectors, up to 36 LaBr3(Ce) scintillators from the UK FATIMA collaboration, and a fast rotating target system will be described. The 12C+12C fusion reaction has been studied from Elab = 11 to 5.6 MeV using STELLA at the Andromède facility in Orsay, France. Preliminary commissioning results are presented in this article.

Published
2017
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3. Indirect techniques for astrophysical reaction rates determinations

Author

Alison Laird, N. de Séréville, N. Oulebsir, P. Roussel, S. Benamara, I. Stefan, Fairouz Hammache, A. Coc, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Nuclear reaction, Physics, 010308 nuclear & particles physics, QC1-999, Context (language use), Inelastic scattering, 01 natural sciences, 7. Clean energy, Reaction rate, Nuclear physics, Stars, 13. Climate action, 0103 physical sciences, 010306 general physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Nuclear Experiment
Abstract

International audience; Direct measurements of nuclear reactions of astrophysical interest can be challenging. Alternative experimental techniques such as transfer reactions and inelastic scattering reactions offer the possibility to study these reactions by using stable beams. In this context, I will present recent results that were obtained in Orsay using indirect techniques. The examples will concern various astrophysical sites, from the Big-Bang nucleo synthesis to the production of radioisotopes in massive stars.

Published
2016
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